This site is an independent educational resource for research compounds. We do not sell, distribute, or endorse human consumption of any compound. By entering, you confirm you are 21 years of age or older and agree to our Terms & Privacy Policy.
Also known as: Copper Peptide, GHK Copper
GHK-Cu (copper peptide GHK) is a naturally occurring tripeptide complex of glycine-histidine-lysine bound to copper (II). It exists endogenously in human plasma, urine, and saliva, with plasma concentrations declining significantly with age.
GHK-Cu modulates gene expression on a massive scale — studies show it affects 4,000+ genes, resetting many toward a younger expression pattern. It upregulates collagen synthesis (types I, III), decorin, and metalloproteinase inhibitors (TIMPs) while downregulating inflammatory cytokines. The copper ion serves as a cofactor for superoxide dismutase and lysyl oxidase, supporting antioxidant defense and collagen cross-linking. In skin, it activates dermal fibroblasts and stimulates glycosaminoglycan synthesis for improved hydration and elasticity.
GHK-Cu modulates gene expression on a massive scale — studies show it affects 4,000+ genes, resetting many toward a younger expression pattern. It upregulates collagen synthesis (types I, III), decorin, and metalloproteinase inhibitors (TIMPs) while downregulating inflammatory cytokines. The copper ion serves as a cofactor for superoxide dismutase and lysyl oxidase, supporting antioxidant defense and collagen cross-linking. In skin, it activates dermal fibroblasts and stimulates glycosaminoglycan synthesis for improved hydration and elasticity.
GHK-Cu (copper peptide GHK) is a naturally occurring tripeptide complex of glycine-histidine-lysine bound to copper (II). It exists endogenously in human plasma, urine, and saliva, with plasma concentrations declining significantly with age. Research spans wound healing, skin regeneration, hair follicle stimulation, anti-inflammatory effects, and potential anti-aging applications at the systemic level.
IUPAC Name
glycyl-L-histidyl-L-lysine copper(II) complex
CAS Number
49557-75-7
Molecular Formula
C14H24CuN6O4
Molecular Mass
403.92 g/mol
Create a free account to:
Join 2,800+ researchers
Create a free account to:
Join 2,800+ researchers
Active liver disease (when using at high systemic doses). Wilson's disease (copper metabolism disorder). Pregnancy or breastfeeding.
Research Disclaimer
This interaction data is compiled from published research and community reports. It may not be exhaustive. Always consult a healthcare professional before combining compounds.
$34.99
up to $75.00
$0.5999
5
6
vial
Skin, Hair & Aesthetics
Melanotan II is a synthetic cyclic heptapeptide analog of alpha-melanocyte stimulating hormone (α-MSH).
Skin, Hair & Aesthetics
PT-141 (Bremelanotide) is a cyclic heptapeptide melanocortin receptor agonist FDA-approved as Vyleesi for hypoactive sexual desire disorder (HSDD) in premenopausal women.
6 PubMed studies
Data Completeness
100%COA Verification
10
Verified COAs
2
Vendors w/ COA
High verification rate (83%)
Latest test: 3/1/2026
Research Credibility
Limited research available
Half-Life
~30–60 minutes (rapid clearance, effects persist due to gene activation)
Molecular Weight
403.92 g/mol
Administration
Subcutaneous, Topical, Intramuscular
CAS Number
49557-75-7
Trial Phase
Phase 2
Common Side Effects
Stop Use If
Research Disclaimer
This information is for educational and research purposes only. Not intended as medical advice. Consult a healthcare professional before use.
GHK-Cu (copper peptide GHK) is a naturally occurring tripeptide complex of glycine-histidine-lysine bound to copper (II). It exists endogenously in human plasma, urine, and saliva, with plasma concentrations declining significantly with age. Research spans wound healing, skin regeneration, hair follicle stimulation, anti-inflammatory effects, and potential anti-aging applications at the systemic level.
GHK-Cu is available in vial form.
Prices start at $34.99 across 5 verified vendors.
Compare prices, payment methods, shipping, and COA scores across 5 vendors.
Skin, Hair & Aesthetics
Melanotan II is a synthetic cyclic heptapeptide analog of alpha-melanocyte stimulating hormone (α-MSH).
Skin, Hair & Aesthetics
PT-141 (Bremelanotide) is a cyclic heptapeptide melanocortin receptor agonist FDA-approved as Vyleesi for hypoactive sexual desire disorder (HSDD) in premenopausal women.