Peg-30 Glyceryl Isostearate

PEG-30 Glyceryl Isostearate is a PEG-modified ester of glycerin and isostearic acid used in cosmetic formulations as a nonionic emulsifier and solubilizer. It stabilizes oil-in-water systems, improves spreadability, and helps disperse small oil loads in aqueous formulas.
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Ingredient Snapshot

Overview
Helps products glide on smoothly without any greasy residue.
Category
Emulsifying, Skin Conditioning
Type
Emulsifier

Ingredient Ratings

Overall Rating

Good

Comedogenic Risk

None

Skin Benefits

Promotes a silky, even feel and helps products apply smoothly without greasiness. Contributes to a consistent texture that wears comfortably on skin.

Uses In Skincare & Cosmetics

Often included in moisturizers, sunscreens, and lotions to keep textures homogeneous. Also used in light creams and serums to improve the overall sensorial experience.

Comedogenic Rating

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

Safety

Generally considered low risk and well tolerated in leave-on and rinse-off products. Mild irritation can occur for very sensitive skin, especially on broken or compromised barriers. Patch testing is prudent if you're reactive.

Is Peg-30 Glyceryl Isostearate a Good Ingredient?

Rated Good because it reliably stabilizes oil-in-water emulsions and improves slip without adding heaviness, with a long record of use and generally low irritation. As a PEG-derived emulsifier, it may cause mild stinging or redness on very sensitive or compromised skin, which is what keeps it from a higher tier.