Methylheptyl Isostearate

Methylheptyl isostearate is an oil-soluble emollient ester of methylheptyl alcohol and isostearic acid, used to give silky, non-greasy slip, soften texture, and add a light protective film in creams, sunscreens, and makeup.
Like this ingredient?

Ingredient Snapshot

Overview
A silky emollient that softens skin and adds a light protective film.
Category
Skin Conditioning, Barrier Support, Tone/Texture
Type
Emollient

Ingredient Ratings

Overall Rating

Good

Comedogenic Risk

None

Skin Benefits

Improves glide with a weightless afterfeel, leaving skin more supple and refined, and helps reduce the look of dryness by softening rough areas.

Uses In Skincare & Cosmetics

Frequently included in primers, facial lotions, and tinted moisturizers for a smooth, elegant application. Also used in facial oils and lightweight creams to improve slip and comfort.

Comedogenic Rating

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

Safety

Well tolerated for most users; irritation is uncommon. Very oily or congestion-prone skin may prefer lighter use if breakouts are easily triggered by richer emollients. No common regulatory restrictions at usual levels.

Is Methylheptyl Isostearate a Good Ingredient?

As a lightweight emollient ester, it improves glide and softness without a greasy feel, which earns it a Good rating for dependable sensory performance. It's typically low-irritation and stable across a wide range of formats.