Capryloyl Keratin Amino Acids

Capryloyl Keratin Amino Acids 1
AKA: Acylated Keratin Peptides
Synthetic
Cleanser
Skin Conditioner
Hair Care
Amino Acid
Acid
Not Clean
Amino acids, keratin, reaction products with octanoyl chloride
CAS #
161133-65-9
Form
Powder
Functions
Antistatic
Cleansing
Makes oil and water mix so dirt, makeup, and sunscreen can actually be washed away. The reason your face wash foams.
Hair Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Cleansing
Makes oil and water mix so dirt, makeup, and sunscreen can actually be washed away. The reason your face wash foams.
Reduces Static
Removes Impurities
Conditions Hair
Cleansing Surfactant
Fights Bacteria
Reduces Inflammation
Locks In Moisture
Removes dirt and impurities
Lifts away dirt and oil
Reduces flyaways
Softens and detangles hair
Traditional Use
Created as a modern hair and skincare ingredient by coupling caprylic acid with keratin-derived amino acids. Designed to improve protein conditioning and strengthen hair and skin barrier function.
EWG
4
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Skin Types
●all-skin-types
Best For
Rough Texture
Pregnancy & Breastfeeding Safe
Yes
The paper trail
🔬Peer-reviewednone on file
⚖️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