Skincare ingredient tools

Every checker in one place. Paste an ingredient list and get instant, evidence-based verdicts — pore-clogging ratings on the main checker, malassezia (fungal-acne) triggers on the fungal acne checker. All free, all in your browser, no sign-up.

Pore Clogging Checker

The original tool: paste any ingredient list and get 0–5 comedogenic and irritancy ratings per ingredient, with risky ones flagged and explained. Backed by the Fulton 1989 assay with per-ingredient sources.

Check pore-clogging ingredients

Fungal Acne Checker

Check a product against malassezia's known food sources — C11–C24 fatty acids, esters, plant oils and polysorbates — with debated gray zones (ferments, fatty alcohols, C8–C10) marked separately.

Check malassezia triggers

More checkers are on the way — the ingredient database behind these tools grows with every release.