how we grade.
Two grades, side by side: does it work, and what’s in it.
does it work
Proven: Controlled trial on the finished product, measuring what the label claims.
Studied: Human study on the finished product, no control group.
what’s in it
Tested (brand-posted): A lab report from a named independent lab, with date, batch and numbers, posted by the brand.
Certified: On an independent certifier’s current list. It comes in three kinds:
Contents: the finished product is lab-tested.
Ingredients: the formula is screened.
Process: how it was grown or made.
Unverified: Brand claims only. It is not a seal.
Listing rule: A product is listed only if at least one of its two grades has a seal.