Product Overview

Tripeptide-1 (CAS 72957-37-0, acetate), C₁₆H₂₈N₆O₆, MW 400.43 g/mol — also known as GHK (Glycyl-L-Histidyl-L-Lysine) — is a naturally occurring tripeptide matrikine, a bioactive fragment of the collagen α1(I) chain that declines progressively with age. First characterized in human plasma by Loren Pickart (1973), GHK is one of the best-studied matrikine signaling peptides: a collagen-derived sequence that, released during tissue remodeling, feeds back to stimulate collagen, elastin, and glycosaminoglycan (GAG) synthesis. Mechanistically, Tripeptide-1 promotes fibroblast activity, accelerates wound healing, and upregulates endogenous antioxidant defense. It is also a high-affinity copper(II) chelator — binding Cu²⁺ forms the copper peptide GHK-Cu, making Tripeptide-1 the direct precursor to the widely used copper peptide. The cosmetic-grade material is supplied as the acetate salt (MW 400.43 g/mol); the free base corresponds to CAS 49557-75-7 (MW 340.38 g/mol). UPOR Biotech’s Tripeptide-1 is a white to off-white, water-soluble powder with ≥98% purity by HPLC.

As a cosmetic-grade skin-repair active, Tripeptide-1 is positioned across anti-aging and skin-restructuring formulas — serums, creams, and post-procedure recovery care — and as a copper-delivery precursor for GHK-Cu formulations. For formulators, it is a clean-label, metal-free peptide that incorporates readily into the aqueous phase at a recommended usage rate of 0.01–0.1% active and pH 5.0–7.0, combining well with hyaluronic acid and humectants. UPOR Biotech is a bulk cosmetic peptide supplier, offering INCI-named (Tripeptide-1) cosmetic-grade material with full documentation and cosmetic certifications including ISO 9001, cGMP, FDA facility registration, HALAL, KOSHER, and COSMOS. Every lot ships with COA, MSDS, HPLC chromatogram, and heavy-metal and microbial testing.

Tripeptide-1 (GHK) vs Copper Peptide (GHK-Cu) — Metal-Free Matrikine vs Copper(II) Complex

The key distinction in copper-peptide chemistry is the metal content. Tripeptide-1 (GHK) is the metal-free tripeptide precursor — the Gly-His-Lys sequence alone, supplied as a cosmetic-grade powder. When GHK binds a copper(II) ion, it forms GHK-Cu (Copper Peptide), which adds copper delivery for lysyl-oxidase cross-linking and delivers stronger wound-healing and tissue-remodeling activity. GHK-Cu is technically a copper chelate complex (a distinct INCI: Copper Tripeptide-1) rather than the free tripeptide. For formulators, the choice is strategic: Tripeptide-1 offers a clean-label, metal-free matrikine with inherent copper-binding capability (it chelates copper naturally in the skin), while GHK-Cu provides pre-complexed copper for maximum remodeling and repair signal. UPOR Biotech supplies both grades for complete copper-peptide formulation flexibility.

Technical Specifications

PropertySpecification
Product NameTripeptide-1 (GHK) Cosmetic Grade Powder
INCI NameTripeptide-1
SynonymsGHK; Glycyl-L-Histidyl-L-Lysine; Prezatide; Copper Peptide Precursor
CAS Number72957-37-0 (acetate) / 49557-75-7 (free base)
Molecular FormulaC₁₆H₂₈N₆O₆ (acetate) / C₁₄H₂₄N₆O₄ (free base)
Molecular Weight400.43 g/mol (acetate) / 340.38 g/mol (free base)
Peptide SequenceGly-His-Lys (GHK)
Peptide ClassMatrikine / collagen-derived signal peptide
Source / OriginMatrikine fragment of the collagen α1(I) chain; first characterized by Loren Pickart (1973)
MechanismStimulates collagen, elastin & GAG synthesis; high-affinity copper(II) chelation
AppearanceWhite to off-white powder
Purity (HPLC)≥98.0%
Heavy Metals (Total)≤10 ppm
Lead (Pb)≤1.0 ppm
Arsenic (As)≤1.0 ppm
Microbial LimitsTPC ≤100 CFU/g; E. coli, Salmonella, S. aureus negative
SolubilityWater-soluble; incorporate into aqueous phase
Recommended Usage Rate0.01 – 0.1% active
pH5.0 – 7.0 (aqueous solution)
Loss on Drying≤1.0%
Endotoxin≤0.5 EU/mg
GradeCosmetic Grade
CertificationsISO 9001, cGMP, FDA facility registration, HALAL, KOSHER, COSMOS
Packaging10 g / 100 g / 1 kg sealed amber vials / foil pouches
Storage2–8°C or -20°C, protected from light and moisture
Shelf Life2 years (properly stored)
DisclaimerFor cosmetic formulation use only

Key Benefits — Tripeptide-1 (GHK)

Stimulates Collagen, Elastin & GAG Synthesis

Tripeptide-1 is a collagen-derived signal peptide that upregulates collagen, elastin, and glycosaminoglycan (GAG) synthesis in fibroblasts — directly addressing the matrix loss that drives skin aging.

Matrix Synthesis

Collagen-Derived Matrikine Signal

As a Gly-His-Lys matrikine fragment of collagen α1(I), first characterized by Loren Pickart (1973), GHK is a naturally occurring remodeling signal that declines with age — a true skin-identical active.

Matrikine

Copper(II) Chelation — GHK-Cu Precursor

Tripeptide-1 is a high-affinity copper(II) chelator — the direct precursor to the copper peptide GHK-Cu. It delivers copper for lysyl-oxidase cross-linking and stronger remodeling signal.

Copper Chelator

Skin-Repair & Antioxidant Activity

Promotes fibroblast activity and wound healing while supporting endogenous antioxidant defense — a dual repair-plus-protection profile ideal for anti-aging and post-procedure care.

Repair + Defense

Applications

Anti-Aging & Skin-Restructuring Serums

GHK matrikine serums at 0.01–0.1% active to stimulate collagen, elastin, and GAG synthesis for visible firming and density.

Skin-Repair & Wound-Healing Creams

Tripeptide-1 for fibroblast activity and wound-healing support in reparative creams, balms, and barrier-repair formulations.

Copper-Peptide Precursor Formulations

GHK as the metal-free precursor to GHK-Cu — chelate copper(II) in-formula for copper-peptide remodeling and repair systems.

Post-Procedure Recovery Care

Skin-repair and antioxidant activity for post-peel, post-laser, and post-microneedling recovery products.

Firming & Elasticity Boosters

Collagen- and elastin-stimulating action for firming, lifting, and elasticity-boosting serums and lotions.

Clean-Label / COSMOS-Compliant Skincare

INCI-named Tripeptide-1 for COSMOS-compliant, metal-free, clean-label anti-aging and skin-repair formulations.

Frequently Asked Questions

Tripeptide-1 (GHK, Glycyl-L-Histidyl-L-Lysine) is a collagen-derived matrikine peptide — a bioactive Gly-His-Lys fragment of the collagen α1(I) chain first characterized in human plasma by Loren Pickart (1973). It works as a signal peptide that stimulates collagen, elastin, and glycosaminoglycan (GAG) synthesis, promotes fibroblast activity and wound healing, and acts as a high-affinity copper(II) chelator. The cosmetic grade is supplied as the acetate salt (CAS 72957-37-0, MW 400.43 g/mol); the free base is CAS 49557-75-7 (MW 340.38 g/mol).

Tripeptide-1 (GHK) is the metal-free tripeptide precursor — the Gly-His-Lys sequence alone. GHK-Cu (Copper Peptide, INCI: Copper Tripeptide-1) is the copper(II) chelate complex formed when GHK binds Cu²⁺. The copper complex adds copper delivery for lysyl-oxidase cross-linking and delivers stronger wound-healing and tissue-remodeling activity, while Tripeptide-1 is a clean-label, metal-free matrikine with inherent copper-binding capability in the skin.

The recommended usage rate is 0.01–0.1% active in the finished cosmetic formula, incorporated into the aqueous phase. GHK is highly potent as a signaling peptide, so low concentrations are sufficient to stimulate collagen, elastin, and GAG synthesis. For GHK-Cu (copper peptide) formulations, similarly low active rates apply due to the potency of the copper complex.

Add Tripeptide-1 to the aqueous phase at pH 5.0–7.0 during cool-down (below approximately 40°C) to preserve peptide integrity. It is water-soluble and combines well with hyaluronic acid, glycerin, and humectants. Avoid extreme pH and high-heat processing. Recommended usage is 0.01–0.1% active. For copper-peptide precursor formulations, complex the peptide with copper(II) in a controlled ratio before compounding.

Every shipment includes COA (HPLC ≥98.0%, heavy metals ≤10 ppm, lead ≤1 ppm, arsenic ≤1 ppm, microbial panel), MSDS, HPLC chromatogram, and heavy-metal and microbial testing. Cosmetic certifications include COSMOS, HALAL, KOSHER, ISO 9001, cGMP, and FDA facility registration. Complete lot traceability is provided from raw material through final HPLC release.