tools / pore-clogger
pore-clogger/
Paste a skincare ingredient list (INCI) to flag ingredients rated 3 or higher for comedogenicity in published studies, with their ratings and sources. The ratings come from rabbit-ear tests — they're for reference only and can't tell whether a product will break you out.
Ingredient list
Flagged ingredients
| # | Ingredient | Rating | Source |
|---|
Ingredients found (matches in bold)
How to read the ratings
- Comedogenicity is rated 0–5: 0–1 is not significant, 2–3 is borderline, and 4–5 reproducibly caused comedones in testing. Only ingredients rated 3 or higher are included here.
- Most ratings come from Table I of Fulton (1989): ingredients were applied to the inner rabbit ear for two weeks, most diluted to 10% in propylene glycol. A few come from Morris and Kwan (1983). Every entry links to the page of the original paper so you can check it.
- The same ingredient can score very differently across studies; where they disagree, both results are shown. When the original table gives a range, the upper end is used and the range is noted; lower scores for refined oils are noted too.
- “#” is the ingredient's position in the list. Ingredients are usually listed from most to least, but those at 1% or less and colorants may follow in any order, so position is only a rough hint of concentration.
Why it's only a reference
- Rabbit ears are far more sensitive than human skin. An ingredient that scores high on a rabbit ear won't necessarily cause comedones on a human face, as the paper's author points out.
- Ratings test a single raw material at a specific concentration and in a specific vehicle. Concentration, formulation and raw material source in a real product all change the outcome, so a product containing a high-scoring ingredient isn't necessarily comedogenic.
- No match doesn't mean no breakouts: the list covers only the few ingredients that were tested. What matters in the end is the finished product and your own skin.
- Labels like “non-comedogenic” have no standard definition.
- Acne involves sebum, keratinization, hormones, bacteria and genetics. This isn't medical advice — see a dermatologist if your acne is severe or persistent.
How to use it
- Copy the full ingredient list from the package or the brand's website. Commas, semicolons or line breaks all work, and a leading “Ingredients:” is removed automatically.
- Only exact, full ingredient names are matched — no fuzzy matching. Steareth-100 isn't treated as Steareth-10, and Hydrogenated Coconut Oil isn't treated as Coconut Oil. Hyphens, capitalization and common names in parentheses are handled automatically.
- Some ratings that circulate online (such as algae extract = 5) can't be traced to an original source and are not included.
- Your ingredient list is checked only in your browser and never uploaded.