Hydrolyzed Sericin
AKA “Sericin Hydrolysate
Synthetic
Ingredient Facts
Hydrolyzed sericin
AKA: Sericin Hydrolysate
Synthetic · Hair Conditioning · EWG: 4
Synthetic
Skin Conditioner
Hair Care
Synthetic
Clean
A silk-derived protein that softens and conditions both hair and skin, helping to lock in moisture and improve texture.
CAS #
73049-73-7
Form
Liquid
See origin →
Functions
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.
Locks in moisture
Traditional Use
Sericin is a protein found in silk that has been utilized in Asian silk production for centuries. Hydrolyzed sericin was developed in modern cosmetics to provide skin conditioning, moisturization, and a smooth texture similar to its use in traditional silk production.
Skin Types
all-skin-types
Best For
Dehydration
Melanin-Rich Skin
Suitable
Pregnancy & Breastfeeding Safe
Yes
EWG
4
CIR
Insufficient
Pregnancy
Yes
CIR Safety Findings
Not Phototoxic
medical-approval
all-shades-safe
Regulatory Status
USAunder review
EUrestricted
JAPANrestricted
CANADArestricted
Verified Feb 2026
Data: CosIng · EWG · CIR
Hydrolyzed Sericin — Duck Heart Ghost