Palmitoyl Tripeptide-38
AKA “Palmitoyl lysyldioxymethionyllysine, UNII-T7A529FB8O, T7A529FB8O, 1101448-24-1, DTXSID50149155, PALMITOYL-LYSYL-DIOXYMETHIONYL-LYSINE, L-LYSINE, N2-(1-OXOHEXADECYL)-L-LYSYL-S, S-DIOXIDO-L-METHIONYL-, RefChem:169737, DTXCID3071646
Skin Conditioning
Ingredient Facts
Palmitoyl tripeptide-38
AKA: Palmitoyl lysyldioxymethionyllysine, UNII-T7A529FB8O, T7A529FB8O, 1101448-24-1, DTXSID50149155, PALMITOYL-LYSYL-DIOXYMETHIONYL-LYSINE, L-LYSINE, N2-(1-OXOHEXADECYL)-L-LYSYL-S, S-DIOXIDO-L-METHIONYL-, RefChem:169737, DTXCID3071646
Skin Conditioning · Skin Conditioning · EWG: 1
Synthetic
Skin Conditioner
Clean
Palmitoyl Tripeptide-38 is the reaction product of palmitic acid and Tripeptide-38
Formula
C33H65N5O7S
Mol. Weight
676.00
CAS #
-
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.
Boosts collagen production
Reduces fine lines
Traditional Use
A synthetic peptide-derived compound developed in the late 20th century for advanced skincare formulations. Created to mimic amino acid and protein benefits in skincare while improving stability and absorption.
Skin Types
all-skin-types, gentle
Best For
General
Pregnancy & Breastfeeding Safe
Yes
EWG
1
CIR
Insufficient
Pregnancy
Yes
CIR Safety Findings
ewg-1
pregnancy-nursing-safe
all-shades-safe
Regulatory Status
USAunder review
EUrestricted
JAPANrestricted
CANADArestricted
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR