Polyglyceryl-4 Isostearate

A nonionic polyglycerin ester of isostearic acid used as a primary emulsifier in water-in-oil personal care systems. It's chosen to build fine-textured emulsions, improve pigment dispersion in color products, and maintain elegant aesthetics under wear and humidity.
Like this ingredient?

Ingredient Snapshot

Overview
An emulsifier that helps foundation apply evenly without patchiness.
Category
Emulsifying
Type
Emulsifier

Ingredient Ratings

Overall Rating

Great

Comedogenic Risk

None

Skin Benefits

Improves slip and coverage for a polished, even look without heaviness. Promotes uniform pigment distribution to reduce patchiness in complexion products.

Uses In Skincare & Cosmetics

Used in liquid and stick foundations, BB/CC creams, and water-resistant sunscreens to keep texture consistent. Also appears in tinted moisturizers for smooth, controlled application.

Comedogenic Rating

This ingredient is not typically evaluated for comedogenicity, and no standardized rating is available.

Safety

Considered low risk for irritation in leave-on and sunscreen formats, though reactive skin should patch test. No common regulatory limits noted for cosmetic use.

Is Polyglyceryl-4 Isostearate a Good Ingredient?

Great rating due to a strong track record in stable W/O emulsions, effective pigment dispersion, and a low irritation profile. Its PEG-free, nonionic nature supports long-wear with elegant sensory.

Products with Polyglyceryl-4 Isostearate

Related Ingredients