Snapshot
- Overview
- Silk-derived amino acids that add moisture and a silky feel.
- Category
- Hydration, Skin Conditioning
- Type
- Humectant
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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Our take
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.
What it does
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.
Where you'll find it
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.
Before you use it
Safety
They're typically non-irritating, though protein-sensitive individuals may experience mild reactions. No well-established regulatory restrictions apply to topical use.
Products with Silk Amino Acids
