What a 3/5 rating means
On the comedogenic scale, a 3 is the moderate midpoint: tolerated by many, a possible trigger for congestion-prone skin. That puts PEG-8 Stearate squarely in the judgement-call zone, where your skin type and the product's formula decide the outcome.
One thing the number cannot tell you is concentration. Ingredients are listed in descending order, so PEG-8 Stearate near the end of a label is present in tiny amounts and matters far less than the same ingredient near the top.
About PEG-8 Stearate
It is an emulsifier, the ingredient that keeps a product's oil and water phases from separating. A PEGylated stearate emulsifier rated 3/5. As a stearic-acid ester it is also commonly avoided for fungal acne.
On a label it can read as Peg-8 Stearate, Peg 8 Stearate — worth knowing when you scan an ingredient deck.
PEG-8 Stearate in makeup and skincare
It quietly stabilises most cream foundations, lotions, and moisturisers. Its irritancy is rated separately at 1/5, which is low.
If you deal with fungal acne (malassezia folliculitis) rather than ordinary clogged pores, note that PEG-8 Stearate is among the fatty-acid or ester-type ingredients that community sources commonly avoid — a separate concern from its comedogenic score, and one with weaker evidence behind it.
Lower-rated alternatives to PEG-8 Stearate
If you want a similar role with a friendlier comedogenic score, consider:
- Glyceryl Stearate — comedogenic rating 1/5 (Low risk).
- Cetearyl Alcohol — comedogenic rating 2/5 (Low risk).
PEG-8 Stearate comedogenic FAQ
Is PEG-8 Stearate comedogenic?
Moderately. PEG-8 Stearate is rated 3/5 (moderate), the middle of the 0–5 scale: many people tolerate it, but it can contribute to breakouts on congestion-prone skin.
What is the comedogenic rating of PEG-8 Stearate?
PEG-8 Stearate has a comedogenic rating of 3/5 (moderate). Of the 190 ingredients in our dataset with a published rating, 39 rate higher than PEG-8 Stearate, 97 rate lower, and 53 others share its 3/5. Among the 22 rated emulsifiers, 3 rate higher and 9 lower. The figure is drawn from 1 cited source, listed on this page.
Is PEG-8 Stearate pore-clogging?
It can be for some people. At 3/5, PEG-8 Stearate is in the moderate band. How much it matters depends on concentration: near the top of an ingredient list it is a bigger factor than near the end. Comedogenic ratings come mostly from rabbit-ear assays and small human patch tests of the pure ingredient at high concentration, so they are a screening guide, not a prediction for your skin or a medical claim.