Silk Extract
AKA “Silk Protein Extract, Sericin Extract
Synthetic
Ingredient Facts
Silk extract
AKA: Silk Protein Extract, Sericin Extract
Synthetic · Soothing · EWG: 4
Plant-Derived
Emollient
Soothing
Occlusive
Skin Conditioner
Synthetic
Clean
Silk Extract smooths and softens skin while improving moisture retention, leaving it feeling silky and supple.
CAS #
91079-16-2
Form
Liquid
See origin →
Functions
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Emollient
Fills in the tiny cracks between skin cells to make everything feel smooth and soft. The "silky finish" ingredient.
Film Forming
Creates a physical seal on skin to lock moisture in and keep irritants out. The "slugging" ingredient — barrier protection.
Soothing
Calms redness, irritation, and inflammation. Your skin's chill pill — great for sensitive, reactive, or post-procedure skin.
Locks in moisture
Traditional Use
Processed form of silk proteins created to provide the skin-smoothing and moisturizing benefits known in traditional East Asian skincare, where silk has been prized for at least 2,000 years.
Skin Types
all-skin-types
Best For
Dryness
Melanin-Rich Skin
Suitable
Pregnancy & Breastfeeding Safe
Yes
EWG
4
CIR
Safe
Pregnancy
Yes
CIR Safety Findings
Not Phototoxic
medical-approval
all-shades-safe
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Verified Feb 2026
Data: CosIng · EWG · CIR