Sericin
molecular structure · PubChem
AKA: Silk Protein, Silk Sericin
Synthetic
Skin Conditioner
Hair Care
Not Clean
Sericin is a protein isolated from the silk produced by the silkworm, Bombyx mori
CAS #
60650-88-6, 60650-89-7
Form
Powder
Functions
Antistatic
Hair Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Smoothing
Locks in moisture
Smooths skin texture
Traditional Use
A protein extracted from silk cocoons, with silk having been valued in East Asian skincare for centuries. Modern sericin extraction became commercially viable in the 20th century, allowing this traditional silk-derived ingredient to be isolated and used in contemporary skincare products.
Skin Types
●all-skin-types
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
The paper trail
🔬Peer-reviewed1 paper →
⚖️Regulatory1 listing →
🛡️Safety-assessed1 review →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: CosIng · EWG · CIR