Claim rulingsSubstantiation
Only with the study cited. The FTC expects the research to exist and to match both the claim and the product, so cite it specifically or remove the sentence.
Why it fails
Uncited research reference. FTC expects the study to exist and to match.
We file this under substantiation and rate it medium. It is enforced by FTC, which matters because a single phrase can fail in more than one place at once: a listing suppression, an ad-account review and a warning letter are three different consequences of the same sentence.
What to say instead
This is the rewrite an audit ships for this phrase: the strongest wording the standard allows, in the words we would hand you.
The rewrite the standard allows
Cite it specifically, or remove.
Claims that hold in its place
'Studied' not 'proven'. Cite the study.
Every structure/function claim on this page still needs the FDA disclaimer wherever it appears. That requirement has its own ruling.
How common it is
162 of the 793 brands we have ruled carry this phrase or a direct variant on a live listing. Counts are distinct brands, not listings, across 2,243 top-selling Amazon US listings in 8 categories.
Being common is not a defence. It does mean the phrase is easy for an automated sweep to find, on your listing and on everyone else’s. The full ranking sits on the research page.
Run one ASIN through the free check. You get the severity counts on your own copy, ruled against all 109 standards, with no sales call attached.
Nearby rulings
Cite usThis ruling is free to quote. Credit “Claims Verified” and link here. It is regulatory review of marketing language, not legal advice.
audit@claimsverified.org →Say the most the rules allow. Then keep selling it, everywhere, at any spend.
Clean copy can run on every channel at once with nothing for a machine to switch off, so you can push budget knowing what a reviewer can find. And it is the brand a careful shopper can believe.