Elastin Amino Acids
molecular structure · PubChem
AKA: Hydrolyzed Elastin
Synthetic
Skin Conditioner
Hair Care
Amino Acid
Acid
Not Clean
Elastins, hydrolyzates
CAS #
91080-18-1
Form
Powder
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.
Improves skin elasticity
Locks in moisture
Traditional Use
Derived from hydrolyzed elastin in the mid-20th century. Created to provide smaller peptide components that might penetrate skin more effectively than whole elastin protein for supposed elasticity benefits.
EWG
4
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
medical-approval
all-shades-safe
Phototoxicity Concern
Concentration Guide
Industry max
Industry typically uses up to 16.5% in leave-on products (284 products reported). Source: CIR Safety Assessment (CIR Seq 744).
Regulatory Agencies
Skin Types
●all-skin-types
Best For
Loss of Elasticity
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