Glyceryl Isostearate

An oil-soluble glycerin ester of isostearic acid used in personal care as an emulsifier and skin conditioner. It's selected to stabilize water-in-oil or oil-in-water systems, add slip, and give a soft, cushioned finish in creams and lotions.
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Ingredient Snapshot

Overview
An emulsifier that helps creams glide on and feel soft.
Category
Emulsifying, Skin Conditioning, Barrier Support
Type
Emulsifier

Ingredient Ratings

Overall Rating

Good

Comedogenic Risk

Low

Skin Benefits

Improves slip for smoother application and a soft-touch finish that feels comfortable on skin. Helps products lay evenly without a greasy afterfeel.

Uses In Skincare & Cosmetics

Used in moisturizers, sunscreens, makeup primers, and cleansing balms to stabilize emulsions and improve sensorial glide.

Comedogenic Rating

Glyceryl Isostearate has a comedogenic rating of 2. It has a low likelihood of clogging pores but may not suit all skin types.

Safety

Low irritation risk and broadly compatible with skin. Very oily or acne-prone users may prefer lighter formulas, as rich emulsions can feel heavy. No common regulatory limitations in standard concentrations.

Is Glyceryl Isostearate a Good Ingredient?

It's Good for its consistent performance as an emulsifier and skin conditioner that improves slip and stability, backed by long-standing cosmetic use. It improves texture and spread while staying gentle for most skin types, which is dependable formulation work rather than a standout skin benefit.