Silk Amino Acids

Silk Amino Acids are water-soluble, low-molecular-weight peptides made by hydrolyzing silk protein for cosmetic use. They're used to bind moisture, improve suppleness and glide, and leave a smooth, conditioned feel in skin and hair products.
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Ingredient Snapshot

Overview
Silk-derived amino acids that add moisture and a silky feel.
Category
Hydration, Skin Conditioning
Type
Humectant

Ingredient Ratings

Overall Rating

Good

Comedogenic Risk

None

Skin Benefits

They help skin and hair feel more hydrated and silky, supporting a supple look, and can add softness and flexibility with a lightweight touch.

Uses In Skincare & Cosmetics

They're used in hydrating serums, lotions, and sheet masks for a smoother after-feel, and frequently added to shampoos, conditioners, and leave-in treatments to boost slip and softness.

Comedogenic Rating

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

Safety

They're typically non-irritating, though protein-sensitive individuals may experience mild reactions. No well-established regulatory restrictions apply to topical use.

Is Silk Amino Acids a Good Ingredient?

This earns a Good rating because these small peptides deliver lightweight moisturization and conditioning, though the cosmetic evidence behind them is modest compared with benchmark humectants like hyaluronic acid.

Products with Silk Amino Acids

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