Tripeptide-1

AKA: Glycyl-l-histidyl-l-lysine, 49557-75-7, Prezatide, Liver cell growth factor, Glycyl-histidyl-lysine, Copper(II)ghk, KOLLAREN, ORISTAR GHK, Growth-modulating peptide (human)
Synthetic
Skin Conditioner
Barrier Support
Amino Acid
Clean
Tripeptide-1 is a synthetic peptide containing glycine, histidine, and lysine
Formula
C14H24N6O4
Mol. Weight
340.38
CAS #
-
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.
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 synthetic peptide developed in the late 20th century for anti-aging skincare. Designed to mimic natural skin proteins and stimulate collagen production.
EWG
1
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
medical-approval
all-shades-safe
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Skin Types
all-skin-types
Best For
Wrinkles
Pregnancy & Breastfeeding Safe
Yes
The paper trail
🔬Peer-reviewed1 paper
⚖️Regulatory1 listing
🛡️Safety-assessed2 reviews
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR