Isostearyl Hydroxystearate

Isostearyl hydroxystearate is a cosmetic-grade ester made from isostearyl alcohol and hydroxystearic acid. It works as a lightweight emollient and binder that improves spreadability and pigment wetting, leaving a smooth, non-greasy finish.
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Ingredient Snapshot

Overview
An ester that softens rough patches for a silky, supple feel.
Category
Skin Conditioning, Barrier Support, Hydration
Type
Emollient

Ingredient Ratings

Overall Rating

Good

Comedogenic Risk

None

Skin Benefits

Softens rough patches and helps skin feel supple throughout the day. Contributes to a silky afterfeel that minimizes drag during application.

Uses In Skincare & Cosmetics

Common in balms, foundations, and eye products to boost comfort and reduce tugging. Also used in moisturizers to enrich texture and improve the sensory payoff.

Comedogenic Rating

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

Safety

Generally well tolerated with a low likelihood of irritation or sensitization; patch test if skin is reactive. No specific regulatory restrictions known. As with many emollient esters, a small subset of very oily or acne-prone users may notice breakouts.

Is Isostearyl Hydroxystearate a Good Ingredient?

Rated Good as a stable, lightweight ester that reliably boosts slip and pigment wetting, with low irritation in most users. It's a solid formulation aid, though not distinctive enough for a higher rating.

Products with Isostearyl Hydroxystearate

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