Potassium Caproyl Tyrosine

AKA: Tyrostan, L-Tyrosine, Monopotassium salt, Potassium salt (1:1), 630121-95-8
Synthetic
Skin Conditioner
Amino Acid
Plant Oil
Not Clean
Potassium 2-decanamido-3-(4-hydroxyphenyl)propanoate
Formula
C19H28KNO4
Mol. Weight
373.50
CAS #
630121-95-8
Form
Powder
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
Traditional Use
A synthetic amino acid derivative developed in the late 20th century. Created as a conditioning and skin-protective agent with no direct traditional use.
EWG
4
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
Acne
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: PubChem · CosIng · EWG · CIR