Oleoyl Tyrosine
AKA “131P1BQX1U, L-Tyrosine, N-(1-oxo-9-(Z)-octadecenyl), N-((9Z)-1-oxo-9-octadecenyl)-, N-(1-oxo-9-octadecenyl)-, (Z)-, N-((9Z)-1-oxo-9-octadecen-1-yl)-, RefChem:856534, OLEOYL TYROSINE [INCI], N-oleoyl tyrosine, 147732-57-8
Skin Conditioning
Ingredient Facts
Oleoyl tyrosine
AKA: 131P1BQX1U, L-Tyrosine, N-(1-oxo-9-(Z)-octadecenyl), N-((9Z)-1-oxo-9-octadecenyl)-, N-(1-oxo-9-octadecenyl)-, (Z)-, N-((9Z)-1-oxo-9-octadecen-1-yl)-, RefChem:856534, OLEOYL TYROSINE [INCI], N-oleoyl tyrosine, 147732-57-8
Skin Conditioning · Skin Protecting · EWG: 4
Synthetic
Skin Conditioner
Barrier Support
Amino Acid
Not Clean
L-Tyrosine, N-(1-oxo-9-(Z)-octadecenyl)
Formula
C27H43NO4
Mol. Weight
445.60
CAS #
147732-57-8
Form
Powder
See origin →
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.
Skin Protecting
Helps rebuild and strengthen your skin barrier — the invisible shield that keeps moisture in and irritants out. Essential after over-exfoliating or harsh weather.
Nourishes & Protects
Traditional Use
A modern synthetic peptide-lipid conjugate derived from oleic acid and the amino acid tyrosine, developed for advanced skincare formulations seeking peptide and fatty acid benefits.
Skin Types
all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
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
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR