Hydrolyzed Extensin
AKA “Extensin Hydrolysate, Plant Protein Hydrolysate
Skin Conditioning
Ingredient Facts
Hydrolyzed extensin
AKA: Extensin Hydrolysate, Plant Protein Hydrolysate
Skin Conditioning · Hair Conditioning · EWG: 1
Synthetic
Skin Conditioner
Hair Care
Clean
Glycoproteins (specific or class), extensins, hydrolyzates
CAS #
222400-33-1
Form
Powder
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
Extensin is a plant structural protein identified in the 20th century. The hydrolyzed form was developed for cosmetics as a plant-based protein that mimics collagen's firming and conditioning properties.
Skin Types
all-skin-types
Best For
Loss of Elasticity
Pregnancy & Breastfeeding Safe
Yes
EWG
1
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Verified Jun 2026
Data: CosIng · EWG · CIR