Potassium Caproyl Tyrosine

AKA: Tyrostan, L-Tyrosine, Monopotassium salt, Potassium salt (1:1), 630121-95-8
Synthetic
Skin Conditioner
Not Clean
OriginSynthesized from the amino acid L-tyrosine and caproic acid (a saturated fatty acid from coconut or palm oil). Produced through amidation of L-tyrosine with caproyl chloride, followed by potassium salt formation.
Potassium 2-decanamido-3-(4-hydroxyphenyl)propanoate
Formula
C19H28KNO4
Mol. Weight
373.50
CAS #
630121-95-8
Form
Powder
Skin Types
●all-skin-types
Best For
Acne
Pregnancy & Breastfeeding Safe
Yes
Functions
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-reviewednone on file
⚖️Regulatory1 listing →
🛡️Safety-assessed1 review →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
EWG
4
CIR
Safe as used
Pregnancy
Yes
Concentration Guide
CIR lists it as not reported to be in use.
CIR · report published 2017
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR