Texture enhancer and emollient as used in cosmetics. There is also research showing it can help enhance the absorption of ingredients in a cosmetic formula.
Isopropyl myristate is that mortar, filling cracks between the skin cells so that moisture can’t escape. Softens the skin: As an emollient, it also helps soften and smooth dry skin1, which is why this is a choice ingredient for those with dry or flaky skin.
Isopropyl myristate is often called out as a nasty pore-clogging ingredient; however, this assessment comes from dated research that doesn’t apply to how this ingredient is used in today’s cosmetics.