GHK-Cu (Glycyl-L-histidyl-L-lysine copper complex) is a naturally occurring copper peptide found in human plasma, urine, and saliva. It was first isolated by Dr. Loren Pickart in 1973 while studying liver cell function, and has since been extensively researched for its effects on wound healing, collagen synthesis, skin regeneration, anti-aging biology, and systemic tissue repair.
The peptide chelates Cu²⁺ ions (copper) in a 1:1 ratio — this copper complex is central to its biological activity. GHK-Cu acts as a signal molecule that triggers a broad regenerative program in cells, including upregulation of antioxidant enzymes (SOD, catalase), collagen and glycosaminoglycan synthesis, VEGF-driven angiogenesis, and downregulation of pro-inflammatory cytokines.
Plasma concentrations of GHK-Cu decline dramatically with age — from approximately 200 ng/mL in young adults to near-undetectable in elderly individuals — positioning it as a compelling target in longevity research. The blue color of GHK-Cu products is normal and expected due to the copper chelation; it does not indicate contamination or degradation.
Third-party tested · Lot-specific COA · US domestic shipping 24–48h
Buy GHK-Cu (Copper Peptide) Now →| Purity | ≥99% (HPLC verified, third-party) |
| Molecular Weight | 340.4 Da (peptide) + Cu²⁺ |
| Appearance | Blue-tinted powder (copper chelation normal) |
| Storage | –20°C long-term; protect from UV; 4°C up to 30 days after reconstitution |
| Lot Number | OL-2026-008 |
| Format | Lyophilized powder, sealed vial |
| Certificate of Analysis | Lot-specific COA included with every order |
| Intended Use | In vitro laboratory research only |
| Complex | Copper(II) chelate, 1:1 ratio (blue coloration is normal) |
Research Use Disclaimer: GHK-Cu (Copper Peptide) is sold strictly for in vitro laboratory research purposes only. Not for human consumption, veterinary use, or clinical application. These statements have not been evaluated by the FDA. This product is not intended to diagnose, treat, cure, or prevent any disease.