murphyHair Keratin Amino Acids
molecular structure · PubChem
AKA: Hydrolyzed keratin amino acids, Keratin hydrolysate
Synthetic
Skin Conditioner
Hair Care
Amino Acid
Acid
Not Clean
Origin-Derived (wool/feathers) or Plant-Derived
Hair Keratin Amino Acids are the keratin amino acids obtained by the hydrolysis of human hair
CAS #
-
Form
Powder
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
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
The paper trail
🔬Peer-reviewed1 paper →
⚖️Regulatory0 listings
🛡️Safety-assessed2 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: CosIng · EWG · CIR