Isopropyl myristate is a lightweight emollient ester produced from isopropyl alcohol and myristic acid. It boosts slip and spreadability, dissolves oily actives or pigments, and adds a silky finish, though it can be highly comedogenic for some.
A lightweight ester that softens skin but can clog pores for some.
Category
Skin Conditioning, Barrier Support
Type
Emollient
Ingredient Ratings
Overall Rating
Fair
Comedogenic Risk
High
Skin Benefits
Softens rough, dry areas and leaves a lightweight, silky afterfeel. Some acne-prone users may notice increased breakouts.
Uses In Skincare & Cosmetics
Common in lightweight lotions, facial oils, and makeup removers to boost slip. Also used in foundations and primers to improve spread during application.
Comedogenic Rating
Isopropyl Myristate has a comedogenic rating of 5. It has a high likelihood of clogging pores and is generally avoided in acne-prone routines.
Safety
Generally tolerated on intact skin, but it carries a significant comedogenic risk and may worsen clogged pores or folliculitis in breakout-prone areas. Irritation is uncommon but can occur, especially under heavy occlusion.
Is Isopropyl Myristate a Good Ingredient?
Rated Fair because it delivers excellent slip and lightweight emollience, but its high comedogenic tendency makes it a breakout risk for acne-prone skin, and that risk is enough to hold the rating back.