Independent supplement ratingsUS and Canada · Updated weekly
A ratings desk for a category that has spent thirty years grading its own homework.
A ratings desk for a category that has spent thirty years grading its own homework.
The testing is the product. Our plain read on how transparent they are about doses and testing — and what their products actually scored.
Nootropics Depot is unusual among supplement sellers in that its main pitch is analytical rigour rather than benefits.
Labels are fully disclosed, extracts are named and standardised rather than described vaguely, and the company publishes in-house analytical testing on the raw materials it sells. Publishing your own test data is not the same as independent third-party certification — it is the company grading its own homework, which is the exact phrase this site exists to complain about — but it is far more information than the category norm, and it is checkable in the sense that the methods are stated.
Their KSM-66 ashwagandha is at the top of our ashwagandha ranking for a straightforward reason: it uses the named, standardised extract that the trials actually used, at the dose the trials actually used. Most of the category does neither.
The catalogue includes compounds with thin human evidence, sold to an audience predisposed to experiment. Transparency about what is in a capsule is not the same as evidence that the capsule does anything. Read our ingredient pages before the product page.
Scored on the same public formula as every other product on this site. See the method →
A brand page is not an endorsement, and no brand can pay to appear here or to change what it says. We rate labels and doses, not companies' intentions. Advertising disclosure →