# Rainwood Botanical

> Standardized botanical extract supplier in Xi'an, China, founded in 2006. Publishes 217 extract specifications with plant part, marker, analytical method, MOQ, and batch documentation for supplement, food and beverage, sports nutrition, and cosmetic manufacturers.

## Entity facts

- Legal name: Shaanxi Rainwood Biotech Co., Ltd.
- Brand: Rainwood Botanical
- Location: Rm 218, Tangxing Digital Bldg, #6 Tangxing Rd, Xi'an, Shaanxi, China
- Founded: 2006
- Facility: 10,000 m2 production and warehouse space
- Team: 100+ employees
- Published specifications: 217
- Contact: info@rainwoodbio.com
- Languages: English, Chinese
- Facility certificates: NSF 455-2 GMP, ISO 22000, HACCP, ISO 9001, HALAL, USDA Organic, EU Organic (scope and validity confirmed per quotation)

## Start here

- [Product range](https://ingredients.rainwoodbio.com/products/)
- [Specification index](https://ingredients.rainwoodbio.com/specifications/)
- [Extended ingredient list](https://ingredients.rainwoodbio.com/ingredients/)
- [Document library](https://ingredients.rainwoodbio.com/downloads/)
- [Quality and documentation](https://ingredients.rainwoodbio.com/quality/)
- [Custom extraction](https://ingredients.rainwoodbio.com/custom-extraction/)
- [Private label packing](https://ingredients.rainwoodbio.com/private-label/)
- [Packing and logistics](https://ingredients.rainwoodbio.com/logistics/)
- [Company facts and citation guide](https://ingredients.rainwoodbio.com/about/facts/)
- [Editorial and review policy](https://ingredients.rainwoodbio.com/editorial-policy/)
- [Blog](https://ingredients.rainwoodbio.com/blog/)
- [Technical library](https://ingredients.rainwoodbio.com/resources/)
- [Buyer FAQ](https://ingredients.rainwoodbio.com/resources/faq/)
- [Glossary](https://ingredients.rainwoodbio.com/resources/glossary/)
- [Analytical methods](https://ingredients.rainwoodbio.com/resources/methods/)
- [Regulatory notes](https://ingredients.rainwoodbio.com/resources/regulatory/)
- [Contact](https://ingredients.rainwoodbio.com/contact/)

## Product catalog

### Adaptogens & Stress Response

- [Ashwagandha Root Extract](https://ingredients.rainwoodbio.com/products/adaptogens-stress/ashwagandha-extract/): Withania somnifera, Root; Withanolides 2.5% or 5% (HPLC); MOQ 1 kg.
- [Rhodiola Rosea Extract](https://ingredients.rainwoodbio.com/products/adaptogens-stress/rhodiola-rosea-extract/): Rhodiola rosea, Root; Rosavins 3% (HPLC); MOQ 1 kg.
- [Holy Basil Extract](https://ingredients.rainwoodbio.com/products/adaptogens-stress/holy-basil-extract/): Ocimum tenuiflorum, Leaf; Ursolic acid 2% or 5% (HPLC); MOQ 1 kg.
- [Schisandra Berry Extract](https://ingredients.rainwoodbio.com/products/adaptogens-stress/schisandra-extract/): Schisandra chinensis, Fruit; Schisandrins 2% or 9% (HPLC); MOQ 1 kg.
- [Maca Extract](https://ingredients.rainwoodbio.com/products/adaptogens-stress/maca-extract/): Lepidium meyenii, Root; Macamides 0.6% (HPLC); MOQ 1 kg.
- [American Ginseng Extract](https://ingredients.rainwoodbio.com/products/adaptogens-stress/american-ginseng-extract/): Panax quinquefolius, Root; Ginsenosides 80% (UV); MOQ 1 kg.
- [Eleuthero Extract](https://ingredients.rainwoodbio.com/products/adaptogens-stress/eleuthero-extract/): Eleutherococcus senticosus, Root; Eleutherosides B + E 0.8% (HPLC); MOQ 1 kg.
- [Codonopsis Extract](https://ingredients.rainwoodbio.com/products/adaptogens-stress/codonopsis-extract/): Codonopsis pilosula, Root; Polysaccharides ≥20% (UV); MOQ 1 kg.
- [Shilajit Extract](https://ingredients.rainwoodbio.com/products/adaptogens-stress/shilajit-extract/): Asphaltum punjabianum, Purified mineral resin; Fulvic acid 60% (UV); MOQ 1 kg.
- [Salidroside](https://ingredients.rainwoodbio.com/products/adaptogens-stress/salidroside/): Rhodiola rosea, Root; Salidroside 98% (HPLC); MOQ 1 kg.
- [Gynostemma Extract](https://ingredients.rainwoodbio.com/products/adaptogens-stress/gynostemma-extract/): Gynostemma pentaphyllum, Leaf; Gypenosides 98% (UV); MOQ 1 kg.
- [Shatavari Extract](https://ingredients.rainwoodbio.com/products/adaptogens-stress/shatavari-extract/): Asparagus racemosus, Root; Saponins 20% (UV); MOQ 1 kg.
- [Asian Ginseng Extract](https://ingredients.rainwoodbio.com/products/adaptogens-stress/asian-ginseng-extract/): Panax ginseng, Root; Ginsenosides 80% (UV); MOQ 1 kg.
- [Ginsenoside Rg3](https://ingredients.rainwoodbio.com/products/adaptogens-stress/ginsenoside-rg3/): Panax ginseng, Root; Ginsenoside Rg3 98% (HPLC); MOQ 1 kg.

### Cognitive Support & Mood

- [Bacopa Monnieri Extract](https://ingredients.rainwoodbio.com/products/cognitive-mood/bacopa-monnieri-extract/): Bacopa monnieri, Whole herb; Bacosides 20% (HPLC); MOQ 1 kg.
- [Ginkgo Biloba Extract](https://ingredients.rainwoodbio.com/products/cognitive-mood/ginkgo-biloba-extract/): Ginkgo biloba, Leaf; Flavone glycosides 24% (HPLC); MOQ 1 kg.
- [Lion's Mane Extract](https://ingredients.rainwoodbio.com/products/cognitive-mood/lions-mane-extract/): Hericium erinaceus, Fruiting body; Beta-glucan ≥30% (enzymatic); MOQ 1 kg.
- [Saffron Extract](https://ingredients.rainwoodbio.com/products/cognitive-mood/saffron-extract/): Crocus sativus, Stigma; Crocin 2% (HPLC); MOQ 1 kg.
- [Huperzine A](https://ingredients.rainwoodbio.com/products/cognitive-mood/huperzine-a/): Huperzia serrata, Whole herb; Huperzine A 1% (HPLC); MOQ 1 kg.
- [L-Theanine](https://ingredients.rainwoodbio.com/products/cognitive-mood/l-theanine/): Camellia sinensis, Leaf; L-Theanine 98% (HPLC); MOQ 1 kg.
- [5-HTP](https://ingredients.rainwoodbio.com/products/cognitive-mood/5-htp/): Griffonia simplicifolia, Seed; 5-HTP 98% (HPLC); MOQ 1 kg.
- [Nervonic Acid](https://ingredients.rainwoodbio.com/products/cognitive-mood/nervonic-acid/): Acer truncatum, Seed oil; Nervonic acid 90% (GC); MOQ 1 kg.
- [Erinacines](https://ingredients.rainwoodbio.com/products/cognitive-mood/erinacines/): Hericium erinaceus, Mycelium; Erinacines 1% (HPLC); MOQ 1 kg.
- [Hypericin](https://ingredients.rainwoodbio.com/products/cognitive-mood/hypericin/): Hypericum perforatum, Aerial parts; Hypericin 0.3% (HPLC); MOQ 1 kg.
- [Phosphatidylserine](https://ingredients.rainwoodbio.com/products/cognitive-mood/phosphatidylserine/): Glycine max, Lecithin; Phosphatidylserine 50% (HPLC); MOQ 1 kg.
- [Phosphatidylcholine](https://ingredients.rainwoodbio.com/products/cognitive-mood/phosphatidylcholine/): Glycine max, Lecithin; Phosphatidylcholine 50% (HPLC); MOQ 1 kg.
- [Matcha Powder](https://ingredients.rainwoodbio.com/products/cognitive-mood/matcha-powder/): Camellia sinensis, Leaf; Catechins ≥10% (HPLC); MOQ 1 kg.
- [Polygala Extract](https://ingredients.rainwoodbio.com/products/cognitive-mood/polygala-extract/): Polygala tenuifolia, Root; Tenuifolin 10% (HPLC); MOQ 1 kg.
- [Sage Extract](https://ingredients.rainwoodbio.com/products/cognitive-mood/sage-extract/): Salvia officinalis, Leaf; Rosmarinic acid 10% (HPLC); MOQ 1 kg.

### Sleep & Calm

- [Valerian Root Extract](https://ingredients.rainwoodbio.com/products/sleep-calm/valerian-root-extract/): Valeriana officinalis, Root; Valerenic acids 0.8% (HPLC); MOQ 1 kg.
- [Passionflower Extract](https://ingredients.rainwoodbio.com/products/sleep-calm/passionflower-extract/): Passiflora incarnata, Aerial parts; Flavonoids 2% or 3.5% (UV); MOQ 1 kg.
- [Lemon Balm Extract](https://ingredients.rainwoodbio.com/products/sleep-calm/lemon-balm-extract/): Melissa officinalis, Leaf; Rosmarinic acid 2% or 5% (HPLC); MOQ 1 kg.
- [Chamomile Extract](https://ingredients.rainwoodbio.com/products/sleep-calm/chamomile-extract/): Matricaria chamomilla, Flower; Apigenin 1% or 2% (HPLC); MOQ 1 kg.
- [Kava Root Extract](https://ingredients.rainwoodbio.com/products/sleep-calm/kava-root-extract/): Piper methysticum, Root; Kavalactones 30% (HPLC); MOQ 1 kg.
- [Hops Extract](https://ingredients.rainwoodbio.com/products/sleep-calm/hops-extract/): Humulus lupulus, Flower; Alpha acids 10% (HPLC); MOQ 1 kg.
- [Magnolol](https://ingredients.rainwoodbio.com/products/sleep-calm/magnolol/): Magnolia officinalis, Bark; Magnolol 98% (HPLC); MOQ 1 kg.
- [Honokiol](https://ingredients.rainwoodbio.com/products/sleep-calm/honokiol/): Magnolia officinalis, Bark; Honokiol 98% (HPLC); MOQ 1 kg.
- [Chrysin](https://ingredients.rainwoodbio.com/products/sleep-calm/chrysin/): Passiflora incarnata, Flower; Chrysin 98% (HPLC); MOQ 1 kg.
- [Tart Cherry Extract](https://ingredients.rainwoodbio.com/products/sleep-calm/tart-cherry-extract/): Prunus cerasus, Fruit; Anthocyanins 5% (UV); MOQ 1 kg.
- [Lavender Extract](https://ingredients.rainwoodbio.com/products/sleep-calm/lavender-extract/): Lavandula angustifolia, Flower; Linalool 30% (GC); MOQ 1 kg.
- [Jujube Seed Extract](https://ingredients.rainwoodbio.com/products/sleep-calm/jujube-seed-extract/): Ziziphus jujuba, Seed; Jujubosides 2% (HPLC); MOQ 1 kg.

### Beauty & Healthy Aging

- [Resveratrol 98%](https://ingredients.rainwoodbio.com/products/beauty-aging/resveratrol-98/): Polygonum cuspidatum, Root; Trans-resveratrol 98% (HPLC); MOQ 1 kg.
- [Spermidine Extract](https://ingredients.rainwoodbio.com/products/beauty-aging/spermidine-extract/): Triticum aestivum, Germ; Spermidine 1% (HPLC); MOQ 1 kg.
- [Centella Asiatica Extract](https://ingredients.rainwoodbio.com/products/beauty-aging/centella-asiatica-extract/): Centella asiatica, Whole herb; Asiaticosides 10% (HPLC); MOQ 1 kg.
- [Grape Seed Extract](https://ingredients.rainwoodbio.com/products/beauty-aging/grape-seed-extract/): Vitis vinifera, Seed; OPC 95% (UV); MOQ 1 kg.
- [Pine Bark Extract](https://ingredients.rainwoodbio.com/products/beauty-aging/pine-bark-extract/): Pinus massoniana, Bark; Proanthocyanidins 95% (UV); MOQ 1 kg.
- [Bakuchiol](https://ingredients.rainwoodbio.com/products/beauty-aging/bakuchiol/): Psoralea corylifolia, Seed; Bakuchiol 98% (HPLC); MOQ 1 kg.
- [Glabridin](https://ingredients.rainwoodbio.com/products/beauty-aging/glabridin/): Glycyrrhiza glabra, Root; Glabridin 90% (HPLC); MOQ 1 kg.
- [Lutein](https://ingredients.rainwoodbio.com/products/beauty-aging/lutein/): Tagetes erecta, Flower; Lutein 10% (HPLC); MOQ 1 kg.
- [Zeaxanthin](https://ingredients.rainwoodbio.com/products/beauty-aging/zeaxanthin/): Tagetes erecta, Flower; Zeaxanthin 10% (HPLC); MOQ 1 kg.
- [Pomegranate Peel Extract](https://ingredients.rainwoodbio.com/products/beauty-aging/pomegranate-peel-extract/): Punica granatum, Peel; Ellagic acid 40% (HPLC); MOQ 1 kg.
- [Lycopene](https://ingredients.rainwoodbio.com/products/beauty-aging/lycopene/): Solanum lycopersicum, Fruit; Lycopene 5% or 10% (HPLC); MOQ 1 kg.
- [Dihydroquercetin](https://ingredients.rainwoodbio.com/products/beauty-aging/dihydroquercetin/): Larix gmelinii, Wood; Taxifolin 98% (HPLC); MOQ 1 kg.
- [Ferulic Acid](https://ingredients.rainwoodbio.com/products/beauty-aging/ferulic-acid/): Oryza sativa, Bran; Ferulic acid 98% (HPLC); MOQ 1 kg.
- [Kaempferol](https://ingredients.rainwoodbio.com/products/beauty-aging/kaempferol/): Sophora japonica, Flower; Kaempferol 98% (HPLC); MOQ 1 kg.
- [Rutin](https://ingredients.rainwoodbio.com/products/beauty-aging/rutin/): Sophora japonica, Flower bud; Rutin 95% (HPLC); MOQ 1 kg.
- [Hydroxytyrosol](https://ingredients.rainwoodbio.com/products/beauty-aging/hydroxytyrosol/): Olea europaea, Fruit; Hydroxytyrosol 98% (HPLC); MOQ 1 kg.
- [Astaxanthin](https://ingredients.rainwoodbio.com/products/beauty-aging/astaxanthin/): Haematococcus pluvialis, Algae; Astaxanthin 5% (HPLC); MOQ 1 kg.
- [Bamboo Silica](https://ingredients.rainwoodbio.com/products/beauty-aging/bamboo-silica/): Bambusa vulgaris, Stem; Silicon 70% (as SiO₂); MOQ 1 kg.
- [Tetrahydrocurcumin](https://ingredients.rainwoodbio.com/products/beauty-aging/tetrahydrocurcumin/): Curcuma longa, Rhizome; Tetrahydrocurcumin 98% (HPLC); MOQ 1 kg.
- [Chitosan Quaternary Ammonium Salt](https://ingredients.rainwoodbio.com/products/beauty-aging/chitosan-quaternary/): Crustacean shell, Shell; Degree of substitution ≥90% (titration); MOQ 1 kg.
- [Mandelic Acid](https://ingredients.rainwoodbio.com/products/beauty-aging/mandelic-acid/): Prunus amygdalus, Seed; Mandelic acid 99% (HPLC); MOQ 1 kg.
- [Alpha-Mangostin](https://ingredients.rainwoodbio.com/products/beauty-aging/alpha-mangostin/): Garcinia mangostana, Pericarp; Alpha-mangostin 98% (HPLC); MOQ 1 kg.
- [Ceramide](https://ingredients.rainwoodbio.com/products/beauty-aging/ceramide/): Oryza sativa, Bran; Ceramide 3% (HPLC); MOQ 1 kg.
- [Sesamin](https://ingredients.rainwoodbio.com/products/beauty-aging/sesamin/): Sesamum indicum, Seed; Sesamin 98% (HPLC); MOQ 1 kg.
- [Osthole](https://ingredients.rainwoodbio.com/products/beauty-aging/osthole/): Cnidium monnieri, Fruit; Osthole 98% (HPLC); MOQ 1 kg.
- [Sophoricoside](https://ingredients.rainwoodbio.com/products/beauty-aging/sophoricoside/): Sophora japonica, Fruit; Sophoricoside 98% (HPLC); MOQ 1 kg.
- [Pterostilbene](https://ingredients.rainwoodbio.com/products/beauty-aging/pterostilbene/): Pterocarpus marsupium, Heartwood; Pterostilbene 98% (HPLC); MOQ 1 kg.
- [Beta-Carotene](https://ingredients.rainwoodbio.com/products/beauty-aging/beta-carotene/): Blakeslea trispora, Fermentation; Beta-carotene 10% (HPLC); MOQ 1 kg.
- [Fucoxanthin](https://ingredients.rainwoodbio.com/products/beauty-aging/fucoxanthin/): Undaria pinnatifida, Whole algae; Fucoxanthin 10% (HPLC); MOQ 1 kg.
- [Black Rice Anthocyanin](https://ingredients.rainwoodbio.com/products/beauty-aging/black-rice-anthocyanin/): Oryza sativa, Bran; Anthocyanins 25% (UV); MOQ 1 kg.
- [Genistein](https://ingredients.rainwoodbio.com/products/beauty-aging/genistein/): Glycine max, Seed; Genistein 98% (HPLC); MOQ 1 kg.
- [Cycloastragenol](https://ingredients.rainwoodbio.com/products/beauty-aging/cycloastragenol/): Astragalus membranaceus, Root; Cycloastragenol 98% (HPLC); MOQ 1 kg.
- [Ellagic Acid](https://ingredients.rainwoodbio.com/products/beauty-aging/ellagic-acid/): Punica granatum, Peel; Ellagic acid 90% (HPLC); MOQ 1 kg.
- [Tremella Extract](https://ingredients.rainwoodbio.com/products/beauty-aging/tremella-extract/): Tremella fuciformis, Fruiting body; Polysaccharides ≥30% (UV); MOQ 1 kg.
- [Saw Palmetto Extract](https://ingredients.rainwoodbio.com/products/beauty-aging/saw-palmetto-extract/): Serenoa repens, Fruit; Fatty acids 45% (GC); MOQ 1 kg.
- [Silk Fibroin Powder](https://ingredients.rainwoodbio.com/products/beauty-aging/silk-fibroin-powder/): Bombyx mori, Cocoon; Fibroin ≥90% (protein assay); MOQ 1 kg.
- [Nettle Extract](https://ingredients.rainwoodbio.com/products/beauty-aging/nettle-extract/): Urtica dioica, Leaf; Flavonoids 5% (UV); MOQ 1 kg.
- [Aloe Vera Gel Powder](https://ingredients.rainwoodbio.com/products/beauty-aging/aloe-vera-gel-powder/): Aloe barbadensis, Leaf gel; Polysaccharides ≥20% (UV); MOQ 1 kg.
- [Bilberry Extract](https://ingredients.rainwoodbio.com/products/beauty-aging/bilberry-extract/): Vaccinium myrtillus, Fruit; Anthocyanins 25% (UV); MOQ 1 kg.
- [Goji Extract](https://ingredients.rainwoodbio.com/products/beauty-aging/goji-extract/): Lycium barbarum, Fruit; Polysaccharides 40% (UV); MOQ 1 kg.
- [Sea Buckthorn Extract](https://ingredients.rainwoodbio.com/products/beauty-aging/sea-buckthorn-extract/): Hippophae rhamnoides, Fruit; Flavonoids 20% (UV); MOQ 1 kg.
- [Acerola Extract](https://ingredients.rainwoodbio.com/products/beauty-aging/acerola-extract/): Malpighia emarginata, Fruit; Vitamin C 17% (titration); MOQ 1 kg.
- [Amla Extract](https://ingredients.rainwoodbio.com/products/beauty-aging/amla-extract/): Phyllanthus emblica, Fruit; Tannins 40% (UV); MOQ 1 kg.
- [Rosehip Extract](https://ingredients.rainwoodbio.com/products/beauty-aging/rosehip-extract/): Rosa canina, Fruit; Vitamin C 10% (UV); MOQ 1 kg.
- [Rosemary Extract](https://ingredients.rainwoodbio.com/products/beauty-aging/rosemary-extract/): Rosmarinus officinalis, Leaf; Carnosic acid 20% (HPLC); MOQ 1 kg.
- [Apple Polyphenols](https://ingredients.rainwoodbio.com/products/beauty-aging/apple-polyphenols/): Malus domestica, Fruit; Polyphenols 70% (UV); MOQ 1 kg.
- [Neem Extract](https://ingredients.rainwoodbio.com/products/beauty-aging/neem-extract/): Azadirachta indica, Leaf; Azadirachtin 0.3% (HPLC); MOQ 1 kg.
- [Ursolic Acid](https://ingredients.rainwoodbio.com/products/beauty-aging/ursolic-acid/): Rosmarinus officinalis, Leaf; Ursolic acid 98% (HPLC); MOQ 1 kg.

### Sports & Energy

- [Beetroot Powder](https://ingredients.rainwoodbio.com/products/sports-energy/beetroot-powder/): Beta vulgaris, Root; Nitrate 0.5–2% depending on grade; MOQ 1 kg.
- [Tribulus Terrestris Extract](https://ingredients.rainwoodbio.com/products/sports-energy/tribulus-extract/): Tribulus terrestris, Fruit; Saponins 45% or 90% (UV); MOQ 1 kg.
- [Mucuna Pruriens Extract](https://ingredients.rainwoodbio.com/products/sports-energy/mucuna-extract/): Mucuna pruriens, Seed; L-DOPA 98% (HPLC); MOQ 1 kg.
- [Cordyceps Extract](https://ingredients.rainwoodbio.com/products/sports-energy/cordyceps-extract/): Cordyceps militaris, Fruiting body; Polysaccharides ≥30% (UV); MOQ 1 kg.
- [Cissus Quadrangularis Extract](https://ingredients.rainwoodbio.com/products/sports-energy/cissus-quadrangularis-extract/): Cissus quadrangularis, Stem; 3-Ketosterones 2.5% (HPLC); MOQ 1 kg.
- [Turkesterone](https://ingredients.rainwoodbio.com/products/sports-energy/turkesterone/): Ajuga turkestanica, Whole herb; Turkesterone 10% (HPLC); MOQ 1 kg.
- [Ecdysterone](https://ingredients.rainwoodbio.com/products/sports-energy/ecdysterone/): Cyanotis arachnoidea, Root; Ecdysterone 90% (HPLC); MOQ 1 kg.
- [5a-Hydroxy Laxogenin](https://ingredients.rainwoodbio.com/products/sports-energy/laxogenin/): Smilax sieboldii, Rhizome; 5a-Hydroxy laxogenin 98% (HPLC); MOQ 1 kg.
- [Fenugreek Extract](https://ingredients.rainwoodbio.com/products/sports-energy/fenugreek-extract/): Trigonella foenum-graecum, Seed; 4-Hydroxyisoleucine 50% (HPLC); MOQ 1 kg.
- [Octacosanol](https://ingredients.rainwoodbio.com/products/sports-energy/octacosanol/): Saccharum officinarum, Wax; Octacosanol 60% (GC); MOQ 1 kg.
- [Icariin](https://ingredients.rainwoodbio.com/products/sports-energy/icariin/): Epimedium grandiflorum, Leaf; Icariin 98% (HPLC); MOQ 1 kg.
- [Epimedium Dual Glycosides](https://ingredients.rainwoodbio.com/products/sports-energy/epimedium-dual-glycosides/): Epimedium grandiflorum, Leaf; Total epimedium glycosides 20% (UV); MOQ 1 kg.
- [Icaritin](https://ingredients.rainwoodbio.com/products/sports-energy/icaritin/): Epimedium grandiflorum, Leaf; Icaritin 98% (HPLC); MOQ 1 kg.
- [Eurycomanone](https://ingredients.rainwoodbio.com/products/sports-energy/eurycomanone/): Eurycoma longifolia, Root; Eurycomanone 2% (HPLC); MOQ 1 kg.
- [Diosgenin](https://ingredients.rainwoodbio.com/products/sports-energy/diosgenin/): Dioscorea nipponica, Rhizome; Diosgenin 98% (HPLC); MOQ 1 kg.
- [Capsaicin](https://ingredients.rainwoodbio.com/products/sports-energy/capsaicin/): Capsicum annuum, Fruit; Capsaicin 98% (HPLC); MOQ 1 kg.
- [Cordyceps Mycelium Extract](https://ingredients.rainwoodbio.com/products/sports-energy/cordyceps-mycelium-extract/): Cordyceps militaris, Mycelium; Cordycepin 0.2% (HPLC); MOQ 1 kg.
- [Kaempferia Parviflora Extract](https://ingredients.rainwoodbio.com/products/sports-energy/kaempferia-parviflora-extract/): Kaempferia parviflora, Rhizome; 5,7-Dimethoxyflavone 2% (HPLC); MOQ 1 kg.
- [Ajuga Extract](https://ingredients.rainwoodbio.com/products/sports-energy/ajuga-extract/): Ajuga decumbens, Whole herb; Extract ratio 10:1; MOQ 1 kg.
- [Yerba Mate Extract](https://ingredients.rainwoodbio.com/products/sports-energy/yerba-mate-extract/): Ilex paraguariensis, Leaf; Caffeine 2% (HPLC); MOQ 1 kg.
- [6-Paradol](https://ingredients.rainwoodbio.com/products/sports-energy/6-paradol/): Aframomum melegueta, Seed; 6-Paradol 95% (HPLC); MOQ 1 kg.

### Metabolic & Liver

- [Milk Thistle Extract](https://ingredients.rainwoodbio.com/products/metabolic-liver/milk-thistle-extract/): Silybum marianum, Seed; Silymarin 80% (UV); MOQ 1 kg.
- [Artichoke Leaf Extract](https://ingredients.rainwoodbio.com/products/metabolic-liver/artichoke-extract/): Cynara scolymus, Leaf; Cynarin 5% (HPLC); MOQ 1 kg.
- [Berberine HCl 97%](https://ingredients.rainwoodbio.com/products/metabolic-liver/berberine-hcl/): Berberis aristata, Root bark; Berberine HCl 97% (HPLC); MOQ 1 kg.
- [Citrus Bergamot Extract](https://ingredients.rainwoodbio.com/products/metabolic-liver/citrus-bergamot-extract/): Citrus bergamia, Fruit; Flavonoids 38% (HPLC); MOQ 1 kg.
- [Red Yeast Rice Extract](https://ingredients.rainwoodbio.com/products/metabolic-liver/red-yeast-rice-extract/): Monascus purpureus, Fermented rice; Monacolin K 1.5% (HPLC); MOQ 1 kg.
- [Dandelion Extract](https://ingredients.rainwoodbio.com/products/metabolic-liver/dandelion-extract/): Taraxacum officinale, Root; Extract ratio 10:1; MOQ 1 kg.
- [Olive Leaf Extract](https://ingredients.rainwoodbio.com/products/metabolic-liver/olive-leaf-extract/): Olea europaea, Leaf; Oleuropein 20% (HPLC); MOQ 1 kg.
- [Diosmin](https://ingredients.rainwoodbio.com/products/metabolic-liver/diosmin/): Citrus aurantium, Fruit; Diosmin 90% (HPLC); MOQ 1 kg.
- [Cinnamon Polyphenols](https://ingredients.rainwoodbio.com/products/metabolic-liver/cinnamon-polyphenols/): Cinnamomum cassia, Bark; Polyphenols 20% (UV); MOQ 1 kg.
- [Dihydromyricetin](https://ingredients.rainwoodbio.com/products/metabolic-liver/dihydromyricetin/): Ampelopsis grossedentata, Leaf; Dihydromyricetin 98% (HPLC); MOQ 1 kg.
- [Emodin](https://ingredients.rainwoodbio.com/products/metabolic-liver/emodin/): Rheum palmatum, Root; Emodin 98% (HPLC); MOQ 1 kg.
- [Troxerutin](https://ingredients.rainwoodbio.com/products/metabolic-liver/troxerutin/): Sophora japonica, Flower bud; Troxerutin 95% (HPLC); MOQ 1 kg.
- [Oleuropein](https://ingredients.rainwoodbio.com/products/metabolic-liver/oleuropein/): Olea europaea, Leaf; Oleuropein 40% (HPLC); MOQ 1 kg.
- [Naringenin](https://ingredients.rainwoodbio.com/products/metabolic-liver/naringenin/): Citrus paradisi, Fruit; Naringenin 98% (HPLC); MOQ 1 kg.
- [Escin](https://ingredients.rainwoodbio.com/products/metabolic-liver/escin/): Aesculus hippocastanum, Seed; Escin 20% or 98% (HPLC); MOQ 1 kg.
- [Silybin](https://ingredients.rainwoodbio.com/products/metabolic-liver/silybin/): Silybum marianum, Seed; Silybin 98% (HPLC); MOQ 1 kg.
- [Dihydroberberine](https://ingredients.rainwoodbio.com/products/metabolic-liver/dihydroberberine/): Berberis aristata, Root; Dihydroberberine 98% (HPLC); MOQ 1 kg.
- [Ox Bile Powder](https://ingredients.rainwoodbio.com/products/metabolic-liver/ox-bile/): Bos taurus, Bile; Bile acids 50% (titration); MOQ 1 kg.
- [Hesperetin](https://ingredients.rainwoodbio.com/products/metabolic-liver/hesperetin/): Citrus aurantium, Fruit; Hesperetin 98% (HPLC); MOQ 1 kg.
- [Hesperidin](https://ingredients.rainwoodbio.com/products/metabolic-liver/hesperidin/): Citrus aurantium, Fruit; Hesperidin 95% (HPLC); MOQ 1 kg.
- [Oleanolic Acid](https://ingredients.rainwoodbio.com/products/metabolic-liver/oleanolic-acid/): Ligustrum lucidum, Fruit; Oleanolic acid 98% (HPLC); MOQ 1 kg.
- [Puerarin](https://ingredients.rainwoodbio.com/products/metabolic-liver/puerarin/): Pueraria lobata, Root; Puerarin 98% (HPLC); MOQ 1 kg.
- [Bitter Melon Extract](https://ingredients.rainwoodbio.com/products/metabolic-liver/bitter-melon-extract/): Momordica charantia, Fruit; Charantin 1% (HPLC); MOQ 1 kg.
- [Coleus Forskohlii Extract](https://ingredients.rainwoodbio.com/products/metabolic-liver/coleus-forskohlii-extract/): Coleus forskohlii, Root; Forskolin 10% (HPLC); MOQ 1 kg.
- [Gymnema Extract](https://ingredients.rainwoodbio.com/products/metabolic-liver/gymnema-extract/): Gymnema sylvestre, Leaf; Gymnemic acids 25% (HPLC); MOQ 1 kg.
- [Banaba Extract](https://ingredients.rainwoodbio.com/products/metabolic-liver/banaba-extract/): Lagerstroemia speciosa, Leaf; Corosolic acid 1% (HPLC); MOQ 1 kg.
- [White Kidney Bean Extract](https://ingredients.rainwoodbio.com/products/metabolic-liver/white-kidney-bean-extract/): Phaseolus vulgaris, Seed; Alpha-amylase inhibitor 3,000 U/g; MOQ 1 kg.
- [Green Coffee Bean Extract](https://ingredients.rainwoodbio.com/products/metabolic-liver/green-coffee-bean-extract/): Coffea arabica, Bean; Chlorogenic acid 50% (HPLC); MOQ 1 kg.
- [Butcher's Broom Extract](https://ingredients.rainwoodbio.com/products/metabolic-liver/butchers-broom-extract/): Ruscus aculeatus, Rhizome; Ruscogenins 10% (HPLC); MOQ 1 kg.
- [Mulberry Leaf Extract](https://ingredients.rainwoodbio.com/products/metabolic-liver/mulberry-leaf-extract/): Morus alba, Leaf; DNJ 1% (HPLC); MOQ 1 kg.
- [Garcinia Cambogia Extract](https://ingredients.rainwoodbio.com/products/metabolic-liver/garcinia-cambogia-extract/): Garcinia gummi-gutta, Fruit; Hydroxycitric acid 60% (HPLC); MOQ 1 kg.

### Immune & Gut

- [Elderberry Extract](https://ingredients.rainwoodbio.com/products/immune-gut/elderberry-extract/): Sambucus nigra, Fruit; Anthocyanins 5% or 10% (UV); MOQ 1 kg.
- [Astragalus Extract](https://ingredients.rainwoodbio.com/products/immune-gut/astragalus-extract/): Astragalus membranaceus, Root; Polysaccharides ≥40% (UV); MOQ 1 kg.
- [Andrographis Extract](https://ingredients.rainwoodbio.com/products/immune-gut/andrographis-extract/): Andrographis paniculata, Aerial parts; Andrographolides 10% (HPLC); MOQ 1 kg.
- [Ginger Root Extract](https://ingredients.rainwoodbio.com/products/immune-gut/ginger-extract/): Zingiber officinale, Rhizome; Gingerols 5% (HPLC); MOQ 1 kg.
- [Shiitake Mushroom Extract](https://ingredients.rainwoodbio.com/products/immune-gut/shiitake-extract/): Lentinula edodes, Fruiting body; Beta-glucan ≥30% (enzymatic); MOQ 1 kg.
- [Polyporus Umbellatus Extract](https://ingredients.rainwoodbio.com/products/immune-gut/polyporus-extract/): Polyporus umbellatus, Sclerotium; Polysaccharides ≥30% (UV); MOQ 1 kg.
- [Oregano Extract](https://ingredients.rainwoodbio.com/products/immune-gut/oregano-extract/): Origanum vulgare, Leaf; Carvacrol 5% (HPLC); MOQ 1 kg.
- [Yucca Extract](https://ingredients.rainwoodbio.com/products/immune-gut/yucca-extract/): Yucca schidigera, Root; Saponins 30% (UV); MOQ 1 kg.
- [Glucoraphanin](https://ingredients.rainwoodbio.com/products/immune-gut/glucoraphanin/): Brassica oleracea var. italica, Seed; Glucoraphanin 13% (HPLC); MOQ 1 kg.
- [Sulforaphane](https://ingredients.rainwoodbio.com/products/immune-gut/sulforaphane/): Brassica oleracea var. italica, Seed; Sulforaphane 1% (HPLC); MOQ 1 kg.
- [Inulin](https://ingredients.rainwoodbio.com/products/immune-gut/inulin/): Cichorium intybus, Root; Inulin ≥90% (enzymatic); MOQ 1 kg.
- [Andrographolide](https://ingredients.rainwoodbio.com/products/immune-gut/andrographolide/): Andrographis paniculata, Leaf; Andrographolide 98% (HPLC); MOQ 1 kg.
- [Shikimic Acid](https://ingredients.rainwoodbio.com/products/immune-gut/shikimic-acid/): Illicium verum, Fruit; Shikimic acid 98% (HPLC); MOQ 1 kg.
- [Baicalin](https://ingredients.rainwoodbio.com/products/immune-gut/baicalin/): Scutellaria baicalensis, Root; Baicalin 95% (HPLC); MOQ 1 kg.
- [Chitosan](https://ingredients.rainwoodbio.com/products/immune-gut/chitosan/): Crustacean shell, Shell; Deacetylation 90% (titration); MOQ 1 kg.
- [Kombucha Powder](https://ingredients.rainwoodbio.com/products/immune-gut/kombucha-powder/): Camellia sinensis, Fermented tea; Extract ratio 10:1; MOQ 1 kg.
- [Fucoidan](https://ingredients.rainwoodbio.com/products/immune-gut/fucoidan/): Undaria pinnatifida, Whole algae; Fucoidan ≥85% (UV); MOQ 1 kg.
- [Oregano Oil](https://ingredients.rainwoodbio.com/products/immune-gut/oregano-oil/): Origanum vulgare, Leaf; Carvacrol 70% (GC); MOQ 1 kg.
- [Oat Beta-Glucan](https://ingredients.rainwoodbio.com/products/immune-gut/oat-beta-glucan/): Avena sativa, Grain; Beta-glucan ≥70% (enzymatic); MOQ 1 kg.
- [Allicin](https://ingredients.rainwoodbio.com/products/immune-gut/allicin/): Allium sativum, Bulb; Allicin 1% (HPLC); MOQ 1 kg.
- [Thymoquinone](https://ingredients.rainwoodbio.com/products/immune-gut/thymoquinone/): Nigella sativa, Seed; Thymoquinone 98% (HPLC); MOQ 1 kg.
- [Tea Saponin](https://ingredients.rainwoodbio.com/products/immune-gut/tea-saponin/): Camellia sinensis, Seed; Tea saponins 60% or 98% (UV); MOQ 1 kg.
- [Reishi Extract](https://ingredients.rainwoodbio.com/products/immune-gut/reishi-extract/): Ganoderma lucidum, Fruiting body; Beta-glucan ≥30% (enzymatic); MOQ 1 kg.
- [Maitake Extract](https://ingredients.rainwoodbio.com/products/immune-gut/maitake-extract/): Grifola frondosa, Fruiting body; Beta-glucan ≥30% (enzymatic); MOQ 1 kg.
- [Oyster Mushroom Extract](https://ingredients.rainwoodbio.com/products/immune-gut/oyster-mushroom-extract/): Pleurotus ostreatus, Fruiting body; Polysaccharides ≥30% (UV); MOQ 1 kg.
- [King Oyster Mushroom Extract](https://ingredients.rainwoodbio.com/products/immune-gut/king-oyster-extract/): Pleurotus eryngii, Fruiting body; Polysaccharides ≥30% (UV); MOQ 1 kg.
- [Yeast Beta-Glucan](https://ingredients.rainwoodbio.com/products/immune-gut/yeast-beta-glucan/): Saccharomyces cerevisiae, Cell wall; Beta-glucan ≥80% (enzymatic); MOQ 1 kg.
- [Agaricus Blazei Extract](https://ingredients.rainwoodbio.com/products/immune-gut/agaricus-blazei-extract/): Agaricus subrufescens, Fruiting body; Beta-glucan ≥30% (enzymatic); MOQ 1 kg.
- [Black Fungus Extract](https://ingredients.rainwoodbio.com/products/immune-gut/black-fungus-extract/): Auricularia auricula-judae, Fruiting body; Polysaccharides ≥25% (UV); MOQ 1 kg.
- [Chaga Extract](https://ingredients.rainwoodbio.com/products/immune-gut/chaga-extract/): Inonotus obliquus, Sclerotium; Beta-glucan ≥25% (enzymatic); MOQ 1 kg.
- [Turkey Tail Extract](https://ingredients.rainwoodbio.com/products/immune-gut/turkey-tail-extract/): Trametes versicolor, Fruiting body; Beta-glucan ≥30% (enzymatic); MOQ 1 kg.
- [Phellinus Extract](https://ingredients.rainwoodbio.com/products/immune-gut/phellinus-extract/): Phellinus linteus, Fruiting body; Polysaccharides ≥30% (UV); MOQ 1 kg.
- [Antrodia Mycelium Extract](https://ingredients.rainwoodbio.com/products/immune-gut/antrodia-extract/): Antrodia cinnamomea, Mycelium; Polysaccharides ≥20% (UV); MOQ 1 kg.
- [Enoki Mushroom Extract](https://ingredients.rainwoodbio.com/products/immune-gut/enoki-extract/): Flammulina velutipes, Fruiting body; Polysaccharides ≥25% (UV); MOQ 1 kg.
- [Coprinus Extract](https://ingredients.rainwoodbio.com/products/immune-gut/coprinus-extract/): Coprinus comatus, Fruiting body; Polysaccharides ≥25% (UV); MOQ 1 kg.
- [Poria Extract](https://ingredients.rainwoodbio.com/products/immune-gut/poria-extract/): Wolfiporia cocos, Sclerotium; Pachymic acid 1% (HPLC); MOQ 1 kg.
- [Garlic Extract](https://ingredients.rainwoodbio.com/products/immune-gut/garlic-extract/): Allium sativum, Bulb; Alliin 5% (HPLC); MOQ 1 kg.
- [Murdannia Loriformis Extract](https://ingredients.rainwoodbio.com/products/immune-gut/murdannia-loriformis-extract/): Murdannia loriformis, Whole herb; Extract ratio 10:1; MOQ 1 kg.
- [Konjac Glucomannan](https://ingredients.rainwoodbio.com/products/immune-gut/konjac-glucomannan/): Amorphophallus konjac, Tuber; Glucomannan ≥90% (enzymatic); MOQ 1 kg.
- [Elm Bark Extract](https://ingredients.rainwoodbio.com/products/immune-gut/elm-bark-extract/): Ulmus rubra, Inner bark; Extract ratio 4:1; MOQ 1 kg.
- [Echinacea Extract](https://ingredients.rainwoodbio.com/products/immune-gut/echinacea-extract/): Echinacea purpurea, Aerial parts; Echinacosides 4% (HPLC); MOQ 1 kg.
- [Cranberry Extract](https://ingredients.rainwoodbio.com/products/immune-gut/cranberry-extract/): Vaccinium macrocarpon, Fruit; Proanthocyanidins 30% (DMAC); MOQ 1 kg.
- [Marshmallow Root Extract](https://ingredients.rainwoodbio.com/products/immune-gut/marshmallow-root-extract/): Althaea officinalis, Root; Polysaccharides 20% (UV); MOQ 1 kg.
- [Cat's Claw Extract](https://ingredients.rainwoodbio.com/products/immune-gut/cats-claw-extract/): Uncaria tomentosa, Bark; Oxindole alkaloids 3% (HPLC); MOQ 1 kg.
- [Psyllium Husk Powder](https://ingredients.rainwoodbio.com/products/immune-gut/psyllium-husk-powder/): Plantago ovata, Seed husk; Mucilage ≥95%; MOQ 1 kg.
- [Licorice Root Extract](https://ingredients.rainwoodbio.com/products/immune-gut/licorice-root-extract/): Glycyrrhiza glabra, Root; Glycyrrhizin 20% (HPLC); MOQ 1 kg.
- [Pelargonium Extract](https://ingredients.rainwoodbio.com/products/immune-gut/pelargonium-extract/): Pelargonium sidoides, Root; Polyphenols 20% (UV); MOQ 1 kg.
- [Guduchi Extract](https://ingredients.rainwoodbio.com/products/immune-gut/guduchi-extract/): Tinospora cordifolia, Stem; Bitter principles 2.5% (UV); MOQ 1 kg.
- [Astragaloside IV](https://ingredients.rainwoodbio.com/products/immune-gut/astragaloside-iv/): Astragalus membranaceus, Root; Astragaloside IV 98% (HPLC); MOQ 1 kg.
- [Baicalein](https://ingredients.rainwoodbio.com/products/immune-gut/baicalein/): Scutellaria baicalensis, Root; Baicalein 98% (HPLC); MOQ 1 kg.

### Daily Wellness & Absorption

- [Turmeric Extract 95%](https://ingredients.rainwoodbio.com/products/everyday-wellness/turmeric-extract/): Curcuma longa, Rhizome; Curcuminoids 95% (HPLC); MOQ 1 kg.
- [Boswellia Serrata Extract](https://ingredients.rainwoodbio.com/products/everyday-wellness/boswellia-extract/): Boswellia serrata, Gum resin; Boswellic acids 65% (HPLC); MOQ 1 kg.
- [Green Tea Extract](https://ingredients.rainwoodbio.com/products/everyday-wellness/green-tea-extract/): Camellia sinensis, Leaf; Polyphenols 98% (UV); MOQ 1 kg.
- [Quercetin 95%](https://ingredients.rainwoodbio.com/products/everyday-wellness/quercetin/): Sophora japonica, Flower bud; Quercetin 95% (HPLC); MOQ 1 kg.
- [Black Pepper Extract](https://ingredients.rainwoodbio.com/products/everyday-wellness/black-pepper-extract/): Piper nigrum, Fruit; Piperine 95% (HPLC); MOQ 1 kg.
- [White Willow Bark Extract](https://ingredients.rainwoodbio.com/products/everyday-wellness/white-willow-bark-extract/): Salix alba, Bark; Salicin 15% (HPLC); MOQ 1 kg.
- [Senna Leaf Extract](https://ingredients.rainwoodbio.com/products/everyday-wellness/senna-leaf-extract/): Cassia angustifolia, Leaf; Sennosides 20% (HPLC); MOQ 1 kg.
- [Nattokinase](https://ingredients.rainwoodbio.com/products/everyday-wellness/nattokinase/): Glycine max (fermented), Fermented soybean; Nattokinase activity 20,000 FU/g; MOQ 1 kg.
- [Betaine Anhydrous (TMG)](https://ingredients.rainwoodbio.com/products/everyday-wellness/betaine-tmg/): Beta vulgaris, Root (derived); Betaine 98% (HPLC); MOQ 1 kg.
- [Apigenin](https://ingredients.rainwoodbio.com/products/everyday-wellness/apigenin/): Apium graveolens, Whole herb; Apigenin 98% (HPLC); MOQ 1 kg.
- [Fisetin](https://ingredients.rainwoodbio.com/products/everyday-wellness/fisetin/): Rhus succedanea, Stem; Fisetin 98% (HPLC); MOQ 1 kg.
- [Salicin](https://ingredients.rainwoodbio.com/products/everyday-wellness/salicin/): Salix alba, Bark; Salicin 98% (HPLC); MOQ 1 kg.
- [Amygdalin](https://ingredients.rainwoodbio.com/products/everyday-wellness/amygdalin/): Prunus dulcis, Seed; Amygdalin 98% (HPLC); MOQ 1 kg.
- [Matrine](https://ingredients.rainwoodbio.com/products/everyday-wellness/matrine/): Sophora flavescens, Root; Matrine 98% (HPLC); MOQ 1 kg.
- [Naringin Dihydrochalcone](https://ingredients.rainwoodbio.com/products/everyday-wellness/naringin-dihydrochalcone/): Citrus aurantium, Fruit; Naringin dihydrochalcone 98% (HPLC); MOQ 1 kg.
- [Steviol Glycosides](https://ingredients.rainwoodbio.com/products/everyday-wellness/steviol-glycosides/): Stevia rebaudiana, Leaf; Total steviol glycosides 95% (HPLC); MOQ 1 kg.
- [Sanshool](https://ingredients.rainwoodbio.com/products/everyday-wellness/sanshool/): Zanthoxylum bungeanum, Pericarp; Hydroxy-alpha-sanshool 95% (HPLC); MOQ 1 kg.
- [Luteolin](https://ingredients.rainwoodbio.com/products/everyday-wellness/luteolin/): Reseda luteola, Aerial parts; Luteolin 98% (HPLC); MOQ 1 kg.
- [Lumbrokinase](https://ingredients.rainwoodbio.com/products/everyday-wellness/lumbrokinase/): Lumbricus rubellus, Whole worm; Lumbrokinase activity 20,000 FU/g; MOQ 1 kg.
- [Avocado Soybean Unsaponifiables](https://ingredients.rainwoodbio.com/products/everyday-wellness/asu/): Persea americana / Glycine max, Fruit and seed oil; Sterols 30% (GC); MOQ 1 kg.
- [Formononetin](https://ingredients.rainwoodbio.com/products/everyday-wellness/formononetin/): Astragalus membranaceus, Root; Formononetin 98% (HPLC); MOQ 1 kg.
- [Gingerol Extract](https://ingredients.rainwoodbio.com/products/everyday-wellness/gingerol/): Zingiber officinale, Rhizome; Gingerols 50% or 95% (HPLC); MOQ 1 kg.
- [Sodium Copper Chlorophyllin](https://ingredients.rainwoodbio.com/products/everyday-wellness/sodium-copper-chlorophyllin/): Medicago sativa, Leaf; Total chlorophyllin 99% (UV-Vis); MOQ 1 kg.
- [Phytosterols](https://ingredients.rainwoodbio.com/products/everyday-wellness/phytosterol/): Glycine max / Helianthus annuus, Oil; Total phytosterols 95% (GC); MOQ 1 kg.
- [Cocoa Extract](https://ingredients.rainwoodbio.com/products/everyday-wellness/cocoa-extract/): Theobroma cacao, Bean; Flavanols 20% (HPLC); MOQ 1 kg.
- [6-Gingerol](https://ingredients.rainwoodbio.com/products/everyday-wellness/6-gingerol/): Zingiber officinale, Rhizome; 6-Gingerol 95% (HPLC); MOQ 1 kg.

## Technical library

- [High-performance liquid chromatography (HPLC)](https://ingredients.rainwoodbio.com/resources/methods/hplc/): HPLC separates individual compounds before detection, so a specific marker or a defined marker family can be quantified against a reference standard.
- [Ultraviolet-visible spectroscopy (UV-VIS)](https://ingredients.rainwoodbio.com/resources/methods/uv-vis/): UV-VIS measures absorbance at a chosen wavelength to estimate a family total, usually against a single reference standard.
- [Thin-layer chromatography and identity testing](https://ingredients.rainwoodbio.com/resources/methods/tlc-identity/): TLC produces a visual fingerprint of a botanical extract. It is a qualitative identity check, not a potency assay.
- [ICP-MS heavy metal testing](https://ingredients.rainwoodbio.com/resources/methods/icp-ms/): ICP-MS measures individual trace elements such as lead, arsenic, cadmium, and mercury at parts-per-billion levels.
- [Gas chromatography for residual solvents](https://ingredients.rainwoodbio.com/resources/methods/gc-residual-solvents/): Gas chromatography separates and quantifies volatile solvents left after extraction, purification, or carrier preparation.
- [Pesticide residue testing](https://ingredients.rainwoodbio.com/resources/methods/pesticide-residues/): Multi-residue panels screen for hundreds of pesticides using liquid and gas chromatography with tandem mass spectrometry.
- [Microbiological testing](https://ingredients.rainwoodbio.com/resources/methods/microbiology/): Microbiological tests count total aerobic organisms, yeast and mould, and specific pathogens such as E. coli and Salmonella.
- [United States regulatory notes](https://ingredients.rainwoodbio.com/resources/regulatory/united-states/): Dietary supplements are regulated as a category of food. FDA does not approve supplements or botanical ingredients; the brand is responsible for safety, labeling, and claims.
- [European Union regulatory notes](https://ingredients.rainwoodbio.com/resources/regulatory/european-union/): Food supplements are regulated at EU level for certain categories and at member-state level for botanicals. Novel food, contaminants, pesticide MRLs, and health claims all apply.
- [United Kingdom regulatory notes](https://ingredients.rainwoodbio.com/resources/regulatory/united-kingdom/): Great Britain applies retained EU law with UK regulators and registers; Northern Ireland continues to follow EU rules under the Windsor Framework. The two paths can differ.
- [Certificate of analysis](https://ingredients.rainwoodbio.com/resources/glossary/certificate-of-analysis/): A batch-specific document that reports the test results for one manufacturing lot against an agreed specification, including the analytical methods and acceptance criteria.
- [Technical data sheet](https://ingredients.rainwoodbio.com/resources/glossary/technical-data-sheet/): A product-level summary of a grade's botanical source, specification, physical properties, solubility, storage, and packaging. It is not batch-specific.
- [Safety data sheet](https://ingredients.rainwoodbio.com/resources/glossary/safety-data-sheet/): A 16-section document covering hazards, handling, storage, transport, and emergency response for a specific product. It is a safety document, not a quality or potency document.
- [Specification](https://ingredients.rainwoodbio.com/resources/glossary/specification/): A written set of acceptance criteria — identity, marker range, method, physical parameters, contaminants, carrier, and packaging — against which each lot is tested and released.
- [Marker compound](https://ingredients.rainwoodbio.com/resources/glossary/marker-compound/): A measurable constituent used to characterize or standardize an extract. It may or may not be the compound responsible for the botanical's traditional use.
- [Standardized extract](https://ingredients.rainwoodbio.com/resources/glossary/standardized-extract/): An extract adjusted to a defined marker range so each lot can be tested against a stated content, rather than only an herb-to-extract ratio.
- [Extract ratio](https://ingredients.rainwoodbio.com/resources/glossary/extract-ratio/): The mass of raw herb used to produce one mass of extract, written as a ratio such as 10:1. It describes the process, not the marker content or potency.
- [High-performance liquid chromatography](https://ingredients.rainwoodbio.com/resources/glossary/hplc/): An analytical technique that separates individual compounds before detection, allowing a specific marker or marker family to be quantified against a reference standard.
- [Ultraviolet-visible spectroscopy](https://ingredients.rainwoodbio.com/resources/glossary/uv-vis/): A spectrophotometric method that measures absorbance at a chosen wavelength to estimate a family total, usually against a single reference standard.
- [Inductively coupled plasma mass spectrometry](https://ingredients.rainwoodbio.com/resources/glossary/icp-ms/): A trace-element technique that measures individual metals such as lead, arsenic, cadmium, and mercury at very low concentrations.
- [Maximum residue limit](https://ingredients.rainwoodbio.com/resources/glossary/mrl/): A regulatory limit for a pesticide residue in a defined food commodity. It is set by the destination market, not chosen by the supplier.
- [Limit of quantification](https://ingredients.rainwoodbio.com/resources/glossary/loq/): The lowest concentration of an analyte that a method can reliably quantify. A result below the LOQ is not the same as zero.
- [Residual solvents](https://ingredients.rainwoodbio.com/resources/glossary/residual-solvents/): Volatile solvents remaining after extraction, purification, or carrier preparation. They are controlled by solvent class and limit, not by a single generic test.
- [Heavy metals](https://ingredients.rainwoodbio.com/resources/glossary/heavy-metals/): Trace elements such as lead, arsenic, cadmium, and mercury that can be taken up by plants and concentrated during extraction.
- [Pesticide residues](https://ingredients.rainwoodbio.com/resources/glossary/pesticide-residues/): Residues of agricultural pesticides that may remain in the herb and concentrate in the extract. Multi-residue panels are matched to the herb and destination market.
- [Carrier](https://ingredients.rainwoodbio.com/resources/glossary/carrier/): A food-grade material such as maltodextrin or gum arabic used to dilute, standardize, or spray-dry an extract. The carrier is part of the ingredient and must be declared.
- [Mesh size](https://ingredients.rainwoodbio.com/resources/glossary/mesh-size/): A particle-size designation based on the number of openings per linear inch of screen. Higher mesh means a finer powder; 80 mesh is roughly 180 micrometres.
- [Water-soluble vs water-dispersible](https://ingredients.rainwoodbio.com/resources/glossary/water-soluble/): Soluble means the extract forms a true solution; dispersible means it suspends as fine particles and may settle. The difference decides whether a clear drink is possible.
- [Withanolides](https://ingredients.rainwoodbio.com/resources/glossary/withanolides/): The steroidal lactone family used to standardize ashwagandha, usually measured by HPLC and commonly specified at 2.5% or 5%.
- [Curcuminoids](https://ingredients.rainwoodbio.com/resources/glossary/curcuminoids/): The yellow pigment family in turmeric — curcumin, demethoxycurcumin, and bisdemethoxycurcumin — commonly standardized as a 95% total by HPLC.
- [Silymarin](https://ingredients.rainwoodbio.com/resources/glossary/silymarin/): A flavonolignan family from milk thistle, commonly standardized to 80% by UV. Silybin is a single compound within the family, usually measured by HPLC.
- [EGCG](https://ingredients.rainwoodbio.com/resources/glossary/egcg/): The main catechin used to standardize green tea extract, commonly specified at 50% by HPLC, with caffeine content reported separately.
- [Trans-resveratrol](https://ingredients.rainwoodbio.com/resources/glossary/trans-resveratrol/): The biologically studied isomer of resveratrol. A 98% specification should state trans-resveratrol, not only total resveratrol, because cis-isomer content changes the material.
- [Oligomeric proanthocyanidins](https://ingredients.rainwoodbio.com/resources/glossary/opc/): The polyphenol family used to standardize grape seed and pine bark extracts, often measured by UV against a reference standard.

## Blog

- [How to read a botanical extract COA without being fooled](https://ingredients.rainwoodbio.com/blog/how-to-read-a-botanical-extract-coa/): A practical line-by-line guide to the certificate of analysis: what belongs on it, which numbers actually matter, and the shortcuts that should make you ask for more.
- [10:1 is not a strength: extract ratios versus standardization](https://ingredients.rainwoodbio.com/blog/extract-ratio-vs-standardized-extract/): What an extract ratio actually tells you, why a 10:1 powder can be weaker than a 4:1 extract, and how to write a specification that means something.
- [Heavy metals, pesticides, and solvents: the tests that decide clearance](https://ingredients.rainwoodbio.com/blog/contaminant-testing-botanical-extracts/): A buyer's guide to the contaminant panel for botanical extracts, with practical limits, method notes, and the questions to ask before the first shipment.
- [HPLC or UV? Why two suppliers quote different numbers for the same extract](https://ingredients.rainwoodbio.com/blog/hplc-vs-uv-assay-methods/): A plain-language explanation of the two assay methods behind most botanical extract specifications, and how to compare quotes fairly.
- [Your first botanical extract order: MOQ, samples, lead time, and documents](https://ingredients.rainwoodbio.com/blog/first-botanical-extract-order/): A practical timeline for a first purchase, from specification agreement to arrival, including the documents and checks that prevent expensive surprises.
- [Ashwagandha root vs root and leaf: the difference behind the same percentage](https://ingredients.rainwoodbio.com/blog/ashwagandha-root-vs-root-and-leaf/): Two certificates can both say 5% withanolides and still describe different ingredients. A practical guide to plant part, label claims, and how to verify root-only ashwagandha.
- [Silymarin 80% by UV is not silybin 80% by HPLC](https://ingredients.rainwoodbio.com/blog/silymarin-uv-vs-silybin-hplc/): Milk thistle is one of the clearest examples of method-dependent specifications. Here is how to compare a UV silymarin figure with an HPLC silybin figure without being misled.
- [Beetroot powder is not a nitrate dose: comparing root powder, juice powder, and concentrate](https://ingredients.rainwoodbio.com/blog/beetroot-powder-vs-juice-powder/): Sports brands buy beetroot for nitrate, but labels often compare powder weight. A guide to the commercial forms, how nitrate is measured, and what to write in the specification.
- [Water-soluble curcumin: what to specify when a clear drink is the target](https://ingredients.rainwoodbio.com/blog/water-soluble-curcumin/): Standard 95% curcuminoids do not dissolve in water. A practical guide to dispersible and enhanced grades, how to test them, and what the specification should say.
- [How to qualify a botanical extract supplier: a 40-point checklist](https://ingredients.rainwoodbio.com/blog/how-to-qualify-a-botanical-extract-supplier/): A structured approach to supplier qualification: entity and facility, specification and methods, documents, traceability, change control, commercial terms, and the first order.

## Documents

- [Specimen certificate of analysis](https://ingredients.rainwoodbio.com/downloads/specimen-coa-turmeric.pdf): A complete COA format for a turmeric extract, showing identity, assay, physical parameters, contaminants, methods, limits, and release fields. Clearly marked as a specimen, not a batch record.
- [Specimen technical data sheet](https://ingredients.rainwoodbio.com/downloads/specimen-tds-turmeric.pdf): A product-level TDS for the same turmeric grade: botanical source, plant part, specification range, carrier, solubility, mesh, storage, and packaging.
- [Capability and documentation statement](https://ingredients.rainwoodbio.com/downloads/rainwood-capability-statement.pdf): A concise supplier profile: company facts, extraction and release process, document pack, certification scope, and the questions we ask before quoting.
- [Botanical extract supplier qualification checklist](https://ingredients.rainwoodbio.com/downloads/botanical-extract-supplier-checklist.pdf): A practical 40-point checklist for evaluating a new botanical extract supplier: documentation, analytical methods, traceability, change control, and commercial terms.
- [Specification and RFQ brief template](https://ingredients.rainwoodbio.com/downloads/botanical-extract-rfq-template.pdf): A one-page brief you can send to any supplier: botanical, plant part, marker and method, physical requirements, contaminants, application, quantity, and destination.
- [Extract specification index (CSV)](https://ingredients.rainwoodbio.com/downloads/rainwood-extract-specifications.csv): All 217 published specifications in a structured CSV: product, source, part, marker, method, MOQ, and document links. Useful for procurement comparisons.
- [Specification pack — Part 1](https://ingredients.rainwoodbio.com/downloads/rainwood-217-specification-sheets-part-1.zip): The first half of the 217-sheet specification pack: one PDF per product for supplier qualification and internal review. Each sheet states the marker, method, MOQ, packaging, and document set.
- [Specification pack — Part 2](https://ingredients.rainwoodbio.com/downloads/rainwood-217-specification-sheets-part-2.zip): The second half of the 217-sheet specification pack, with the same one-page format. Download both parts for the complete catalog.

## What each batch includes

- Certificate of Analysis: Batch-specific results for identity, assay, appearance, moisture, particle size, heavy metals, microbiology and any agreed additional parameters.
- Technical data sheet: Botanical source, plant part, extraction solvent, carrier, specification range, solubility, bulk density and recommended storage.
- Safety data sheet: 16-section SDS in the format your EHS or regulatory team expects, issued against the exact grade supplied.
- Allergen and GMO statements: Declarations covering the major allergen list, gluten, animal-derived inputs and GMO status, signed for the batch.
- Origin and traceability record: Harvest or lot reference for the raw herb, manufacturing lot, and the link between the two for your supplier qualification file.
- Regulatory support: Specification comparison, residual solvent and pesticide statements, and Halal or Kosher certificates where the grade is covered.

## Citation guidance

When citing product details, use the individual product page. Do not generalize one grade's marker or MOQ to the whole range. Facility certificates are not product certificates; confirm scope and validity before stating that a product is certified. Certifications do not imply FDA approval, and no ingredient is presented as treating, curing, or preventing disease.

Preferred citation: Rainwood Botanical, https://ingredients.rainwoodbio.com. Contact: info@rainwoodbio.com.