Hydrolyzed Oat Protein

AKA: Oat Protein Hydrolysate, Hydrolyzed Oat Proteins
Synthetic
Skin Conditioner
Hair Care
Clean
Protein hydrolyzates, oats
CAS #
151661-87-9
Form
Powder
State
Solid
Functions
Antistatic
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
Oats have a long history in traditional skincare across multiple cultures for calming and moisturizing properties. The hydrolyzed protein version was created in the 20th century to concentrate these benefits and improve cosmetic formulation compatibility.
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
Skin Types
all-skin-types
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
The paper trail
🔬Peer-reviewednone on file
⚖️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