Sericin

AKA: Silk Protein, Silk Sericin
Synthetic
Skin Conditioner
Hair Care
Not Clean
OriginDerived from silk cocoons, where it naturally occurs as a gum-like protein binding fibroin fibers. Extracted through hot water treatment or alkali processing of raw silk fibers to isolate the protein.
Sericin is a protein isolated from the silk produced by the silkworm, Bombyx mori
CAS #
60650-88-6, 60650-89-7
Form
Powder
Skin Types
●all-skin-types
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
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
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.
EWG
4
CIR
Safe as used
Pregnancy
Yes
Concentration Guide
Leave-on0.00047%
Rinse-off0.00047%
0%50%100%
CIR reported use · 2014 survey
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Verified Jun 2026
Data: CosIng · EWG · CIR