Silk amino acids are a hydrolyzed protein derived from silk fibroin, providing a blend of amino acids that hydrate, condition, and form a smoothing film on skin and hair. They are commonly used in moisturizers and hair care to improve softness and water retention.
| Reported effect | How often | Notes |
|---|---|---|
| Contact irritation (mild redness or stinging) | Rare | Generally well tolerated; mild irritation possible in sensitive individuals. |
| Allergic contact dermatitis | Rare | Hydrolyzed silk proteins can act as a sensitizer in predisposed individuals. |
| Hypersensitivity reaction in those with silk allergy | Very rare | Individuals allergic to silk may react to silk-derived proteins. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.
Peer-reviewed papers on this ingredient, via PubMed.