Oat Amino Acids
AKA: Avena sativa amino acids, Oat protein amino acids, Hydrolyzed oat amino acids
Synthetic
Skin Conditioner
Hair Care
Amino Acid
Acid
Clean
Amino acids, oat
Effective at 0.05%
CAS #
222400-43-3
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.
Locks in moisture
Traditional Use
Derived from oat proteins, which have been used in traditional medicine for millennia to soothe irritated skin. Modern extraction isolates amino acids to enhance skin conditioning and barrier repair in contemporary skincare.
EWG
1
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
medical-approval
all-shades-safe
Phototoxicity Concern
Concentration Guide
0.0003%
0.1%
0%0%
Reported use
CIR reported use: 0.0003-0.1
Regulatory Agencies
Skin Types
●all-skin-types
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
The paper trail
🔬Peer-reviewed1 paper →
⚖️Regulatory1 listing →
🛡️Safety-assessed2 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: CosIng · EWG · CIR