Comedogenic ratings are repeated across skincare sites as if they were universal product rules. Their original test conditions, ranges, source variation, and formulation limits often disappear along the way.
Comedogenic Checker exists to keep those missing pieces attached. It provides a fast browser-side lookup while preserving source locations, ranges, unknown entries, and a direct explanation of what an ingredient-level screen cannot establish.
Editorial principles
Evidence stays attached
Every rating needs a traceable source and model. A number without context is not enough.
Unknown stays unknown
An unmatched name is not silently converted into a favorable result.
No hidden commercial nudge
The launch site contains no paid placement, affiliate recommendation, or replacement-product funnel.
Corrections are versioned
Data changes require evidence, a new version, and passing integrity tests.
Who is responsible
Comedogenic Checker is an independent educational web project. It is not a dermatology practice, laboratory, cosmetic manufacturer, retailer, or certification body. Content is compiled from the cited literature and public nomenclature sources; it is not presented as personal medical guidance.
The current release has not been clinically reviewed by a named dermatologist. That fact is stated plainly rather than implied through design. Clinical review is a future trust improvement, not a claim attached to this launch dataset.
Contact and corrections
Questions about a source, alias, rating, or page can be sent to [email protected]. Include the page URL, disputed text, and a primary or authoritative source where possible.