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 Myristyl Propionate squarely in the judgement-call zone, where your skin type and the product's formula decide the outcome.
This rating is disputed. Credible sources land on different numbers for Myristyl Propionate, so we publish the range (3) rather than a false single figure. When sources disagree this openly, your own experience carries real weight.
One thing the number cannot tell you is concentration. Ingredients are listed in descending order, so Myristyl Propionate near the end of a label is present in tiny amounts and matters far less than the same ingredient near the top.
About Myristyl Propionate
It is a synthetic ester — an oil-and-alcohol reaction product engineered for a smooth, quick-absorbing slip. A myristyl ester named on comedogenic lists in the moderate range.
On a label it can read as Myristyl Propionate, Myreth-3 Myristate, Myreth 3 Myristate — worth knowing when you scan an ingredient deck.
Myristyl Propionate in makeup and skincare
It is a workhorse of foundations, primers, sunscreens, and mascara, where a fast, silky slip sells the texture. Its irritancy is rated separately at 0/5, which is low.
If you deal with fungal acne (malassezia folliculitis) rather than ordinary clogged pores, note that Myristyl Propionate 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 Myristyl Propionate
If you want a similar role with a friendlier comedogenic score, consider:
- Caprylic/Capric Triglyceride — comedogenic rating 1/5 (Low risk).
- Squalane — comedogenic rating 1/5 (Low risk).