Isostearyl Isostearate

Isostearyl isostearate is an ester from isostearyl alcohol and isostearic acid used in personal care. It conditions skin, increases slip, and improves uniform application in creams, sunscreens, and color cosmetics.
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Ingredient Snapshot

Overview
An ester that leaves skin smooth, cushioned, and less dry.
Category
Skin Conditioning, Barrier Support, Hydration
Type
Emollient

Ingredient Ratings

Overall Rating

Good

Comedogenic Risk

Low

Skin Benefits

Leaves skin feeling smooth and cushioned while helping reduce dryness. Adds a light, comfortable skin feel without heaviness.

Uses In Skincare & Cosmetics

Used in sunscreens, lotions, and liquid foundations to improve blendability and create a plush texture. Also found in lip oils to provide a silky, conditioning glide.

Comedogenic Rating

Isostearyl Isostearate has a comedogenic rating of 1. It has a very low likelihood of clogging pores.

Safety

Low irritation potential for most users; patch testing is prudent for sensitive skin. No known ingredient-specific regulatory limits. Rarely, richer esters can feel heavy or contribute to congestion on very oily skin types.

Is Isostearyl Isostearate a Good Ingredient?

Rated Good because it delivers consistent emolliency and even spread with good oxidative stability, and irritation is uncommon in leave-on use. It's a reliable but unremarkable performer.

Products with Isostearyl Isostearate

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