Beauty & Healthy Aging · Specialty
Resveratrol 98%
Polygonum cuspidatum · Root
Trans-resveratrol from Japanese knotweed root, standardized to 98% by HPLC, for premium longevity, skin, and antioxidant formulas.
Reviewed October 2026 · Specification PDF ↓ · Method: HPLC →
98%
Trans-resveratrol
1 kg
Minimum order
1–7 days
Indicative lead time
1 kg foil pouch
Standard packing
Specification
What the certificate will report
| Trans-resveratrol | 98% (HPLC) |
|---|---|
| Isomer ratio | Trans ≥98% of total resveratrol |
| Source | Polygonum cuspidatum root |
| Particle size | 80 mesh |
| Marker compounds | Trans-resveratrol, cis-resveratrol |
| Appearance | Off-white to light beige powder |
| Solubility | Poorly water-soluble; soluble in ethanol |
| Standard packaging | 1 kg foil pouch · 5 kg foil bag · 25 kg fiber drum |
| Minimum order | 1 kg |
| Indicative lead time | 1–7 days |
The method behind the marker value matters as much as the number. Read how it works, what it proves, and where it stops.
Method guide →Specifications are confirmed in writing before quotation. Lead times start after specification and packaging approval, not after the first email.
Application
Where this grade fits
- Longevity capsules
- Beauty-from-within formulas
- Antioxidant blends
- Premium softgels
Available forms
Packing options
Application guides
What to confirm before ordering
- Specify trans-resveratrol, not total resveratrol. Isomer conversion during storage can reduce the trans share.
- Source matters for labeling: Japanese knotweed is not the same as grape-derived resveratrol.
Documentation
Released with every lot
- Batch-specific certificate of analysis against the agreed specification
- Technical data sheet with source, part, carrier, and storage
- Safety data sheet in the 16-section format
- Allergen and GMO statements signed for the batch
- Origin and traceability record linking herb lot and manufacturing lot
- Halal, Kosher, or organic certificates where the grade and facility are covered
Buyer questions
Practical answers
Which specification options are available for resveratrol 98%?
Trans-resveratrol: 98% (HPLC); Isomer ratio: Trans ≥98% of total resveratrol; Source: Polygonum cuspidatum root; Particle size: 80 mesh. Other ratios, marker ranges, carriers, and mesh sizes can be quoted as a custom grade after a feasibility review.
Which documents are supplied with the batch?
A batch-specific COA, technical data sheet, SDS, allergen and GMO statements, and an origin record. Third-party heavy-metal, pesticide, or microbiological reports can be arranged, as can Halal, Kosher, or organic certificates where the grade is covered.
What is the minimum order and lead time?
1 kg minimum, packed in a 1 kg foil pouch; bulk drums are available as quantities scale. 1–7 days after specification and order confirmation. Custom specifications take longer because analytical release is part of the run.
Can we test a sample before ordering?
Yes. Samples are typically 100–500 g and are dispatched with their own COA once the specification is agreed, usually within 3–5 business days. Keep half of the sample so you can compare it with the production lot.
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The questions behind this specification
Next step
Send the spec. We will confirm what is possible.
A competitor COA, a label claim, or a rough target is enough to start. We reply with a matched grade, documentation list, and indicative price.