In detail

A specification is the contract between the buyer and the manufacturer. It should be specific enough to test: 'ashwagandha extract' is a product name, while 'Withania somnifera root extract, withanolides 4.5–5.5% by HPLC, 80 mesh, moisture ≤5%' is a specification. The analytical method and the calculation basis belong in the document, not in a side conversation.

There are product specifications and batch specifications. The product specification defines the grade; the batch record and COA show how a particular lot performed against it. A supplier who cannot send the specification before quoting is asking you to buy an adjective.

Why it matters to a buyer

  • It is the only fair basis for comparing two quotes for the 'same' extract.
  • It supports label claims, retailer reviews, and incoming-goods testing.
  • Version control prevents silent changes between orders.

What to ask a supplier

01

Can you send the full specification, including methods and limits, before quoting?

02

Which parameters are release-critical and which are only informational?

03

How do you handle a lot that falls outside the agreed range?

Cite this page

Rainwood Botanical. "Specification." Botanical extract glossary, October 2026. https://ingredients.rainwoodbio.com/resources/glossary/specification/