The register

Unproven Claims

Somebody has to write down what was actually tested. Every entry here takes one beauty claim, restates it as a proposition somebody could go and check, and records what turned up — including, often, that nobody has looked. No brand is named in a verdict. Nothing here is sponsored, and nothing here links to a shop.

The useful column is not the verdict. It is the one next to it, which says what kind of evidence is missing — because “there is no evidence” is nearly always false, and the accurate answer is usually that the study exists and belongs to something else.

2 claims on file · last revised 3 September 2026 · How this works · JSON · CSV

Evidence position

Any Established Partially established Thinly supported Untested as claimed Not established No adequate source found

What is missing

Any True absence Supplier-generated only Characterisation failure Claim transfer Category error Plausibility gap Protocol untested Claim inflation Indication mismatch

Subject

Any Skincare Injectables & devices Supplements Haircare Treatments & spa Makeup Labels & language

Beef tallow as a skincare base
No adequate source found

Claims for acne, eczema and psoriasis are common on social video and largely uncited; a 2025 analysis found most promoting posts showed financial bias.

True absence Last searched 3 September 2026
Blue light from screens ages your skin
No adequate source found

Visible light from the sun does cause pigmentation. That evidence belongs to sunlight, not your monitor, and was carried across without a trial.

Claim transfer Last searched 3 September 2026

Where this stops

This register records the state of published evidence. It does not tell you a product does nothing, and it never says a company is lying — both would be claims about the world that would need proving, where “we searched here, on this date, against this bar, and found this” is a claim about my own reading and can be checked by anyone who repeats it.

The bar is written down in advance, so “nothing met it” means something: A human study, published and peer-reviewed, with a comparator — placebo, vehicle, or an active with its own evidence — reporting the endpoint the claim is actually about. In-vitro work, animal models, uncontrolled before-and-after series, consumer-perception surveys and unpublished supplier data are read and reported, but they do not clear the bar on their own.

The positions and the absence types, defined →

Beef tallow as a skincare base

Blue light from screens ages your skin