Palmitoyl Isoleucine

Palmitoyl Isoleucine is a lipidated amino acid derivative classed among cosmetic peptides. It conditions skin and supports a smoother, softer-looking surface, though peer-reviewed evidence behind the appearance claims is limited.
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Ingredient Snapshot

Overview
An amino acid derivative meant to make skin feel softer and smoother.
Category
Skin Conditioning, Tone/Texture
Type
Peptide

Ingredient Ratings

Overall Rating

Fair

Comedogenic Risk

None

Skin Benefits

May promote a softer, more supple complexion and a refined look to texture, with limited clinical backing. Helps skin feel smoother to the touch.

Uses In Skincare & Cosmetics

Added to serums and daily moisturizers that target texture refinement and a more even-looking surface.

Comedogenic Rating

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

Safety

Generally low irritation risk, but can trigger slight redness or discomfort in sensitive skin. Patch testing is advisable if you are reactive.

Is Palmitoyl Isoleucine a Good Ingredient?

Rated Fair: peer-reviewed data for its texture-smoothing claims are sparse and the effects appear modest, with performance dependent on formulation and concentration. Some users may also experience mild sensitivity, which keeps it out of Good territory.

Products with Palmitoyl Isoleucine

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