Don’t start with a single recommendation
A single glowing review or forum recommendation isn’t enough to establish legitimacy on its own, since reviews can be selective, outdated, or not representative of current practice at a given seller. Treat any single source of “this one is legit” as a starting point to verify, not a conclusion.
Building a fuller picture
Looking for consistency across multiple, independent signals, documentation practice, shipping practice, responsiveness to questions, and any independent (not just on-site) reviews, gives a more reliable picture than any one signal alone.
Verifying documentation yourself
Requesting a batch-specific COA before ordering, and checking that it states a real, checkable testing lab and method, is something you can do directly rather than relying on someone else’s assessment.
Testing independently, for higher-value orders
For a first order or a larger one, some buyers send a sample to an independent lab for their own verification, separate from whatever the seller provided. This is a more involved step, not necessary for every order, but it’s the most direct way to verify legitimacy yourself.
A repeatable process
Check documentation, check shipping practice, ask direct questions, weigh the responses together. Applying this consistently to any candidate seller is more reliable than looking for a single definitive “legit” label.