1. Confirm the Cultivar
This is the single most important check. Ask what specific cultivar you're buying, and confirm it's noble, not tudei. A reputable vendor should be able to name it directly rather than giving a vague answer. See Noble Kava vs Tudei Kava for why this matters.
2. Confirm It's Root Only
Traditional kava uses only the root and rootstock. Look for a vendor who explicitly states "root only" on the label or in their product description, rather than assuming. See Kava Root vs Kava Leaf and Stem.
3. Ask for Lab Documentation
A certificate of analysis (COA) showing chemotype and total kavalactone content is the clearest way to verify what you're actually buying, beyond a cultivar name alone. Vendors who don't provide this at all are harder to verify than ones who do. See How to Read a Kava Lab Report or Certificate of Analysis.
4. Consider Origin and Form
Origin isn't as important as cultivar and plant part, but it's still worth knowing, particularly if you're curious about a specific region's character. See Where Does Kava Come From?. Form matters too, traditional root, instant, and micronized all behave differently. See Kava Forms Explained.
5. Notice How the Vendor Responds
A vendor's willingness, or reluctance, to answer these questions directly tells you a lot. Reputable sellers of noble kava are usually happy to share cultivar, sourcing, and lab information, since it's a selling point for them, not a liability. Vagueness or defensiveness about basic sourcing questions is worth treating as a warning sign, not a technicality.
