Rhodiola · Buyer guide
Rhodiola extract specification: what to put in an RFQ
A rhodiola extract specification should tell a supplier exactly which material you want to evaluate. Writing only a percentage or an extract ratio leaves important questions unanswered. Build the RFQ around identity, composition, methods, documentation, and the terms of the actual order.
By CleanIngredients · Updated 2026-11-15
Free inquiry, reviewed by CleanIngredients. Availability is not guaranteed.
| Item | Specification | Buyer check |
|---|---|---|
| Identity | Species; root or rhizome; commercial grade | Specification and identity evidence |
| Composition | Named markers; method; basis; carriers | Specification and lot-specific COA |
| Supply | Quantity; destination; sample; delivery terms | Dated written quotation |
Describe the material before its potency
Start with the full botanical species and plant part. State whether your requirement is an existing approved grade or a development sample. Include the formulation format and any relevant process constraints. This gives the supplier a way to flag incompatibility before sending a quotation that appears to fit on price alone.
Where an extract ratio is supplied, ask how it is calculated and whether it refers to native extract or a preparation that includes carriers. A ratio is not a replacement for marker analysis. Request a process description, extraction solvents, and the identities and proportions of added materials needed for your specification review.
Make the analytical fields comparable
Specify rosavins and salidroside in separate fields, with units and acceptance criteria set by your technical team. Ask which compounds are included in the rosavins total and which method is used. Record whether the results are stated on a dry basis or another basis, rather than treating every percentage as directly comparable.
For contaminant and microbiological testing, ask for the methods, units, limits, and actual lot results relevant to your product specification. Do not accept a generic pass statement as the whole evidence package. Your quality team must decide the appropriate specification and testing program; this RFQ outline is an organizational aid.
Tie the sample to future supply
Request enough sample for the planned identity, analytical, and application work, and ask whether retain samples will be kept. Record the sample lot, its manufacturing date, and whether it represents normal commercial production. Ask the supplier to disclose any difference between the sample and the material available for a bulk order.
Put quantity, packaging, delivery destination, currency, quotation validity, lead time, and freight responsibility into the commercial section. Ask separately for the growing region and named manufacturing site. A quotation from a Chinese company does not by itself establish either the botanical’s cultivation origin or the site used for that grade.
Use the free RFQ builder to assemble these points into an editable text brief. You can download the brief for your own records or use the ingredient’s sourcing inquiry. CleanIngredients reviews inquiries; it does not automatically forward them to suppliers or guarantee that a matching grade is available.
Before requesting a quote
- Botanical identity and intended use
- Marker definitions and analytical basis
- Carrier and solvent disclosure
- Sample lot and commercial-lot relationship
- Dated quote and destination
Evidence and editorial scope
Botanical and process distinctions come from the Rhodiola source review. The document requests and comparison workflow are CleanIngredients’ editorial purchasing guidance. They do not establish supplier approval, product safety, or regulatory suitability. Read the directory methodology.