GHK-Cu

GHK-Cu, also published as Copper peptide, Copper Tripeptide-1 and Copper peptide GHK, is catalogued here as: Copper-binding tripeptide (Gly-His-Lys). The copper peptide is studied in fibroblast cultures and rat wound models for how cells produce and remodel connective-tissue material. The copper peptide: studied in the lab for collagen production and how connective tissue is organised.

Cells literature: GHK-Cu increased collagen synthesis in fibroblast cultures independently of a change in cell number. A 1988 cell experiment, not a clinical skin or healing result.

Animal literature: Rat wound chambers showed increased collagen and glycosaminoglycan accumulation. A 1993 experimental rat model, not evidence of human anti-ageing or PLP batch performance.

When comparing published work, match the exact molecular identity, salt form and strength to the paper. Findings in cell or animal models describe those models only and do not establish outcomes in people. The reconstitution calculator converts vial content and diluent volume into concentration for laboratory preparation.

Proof Line Peptides lists GHK-Cu as a vial in 100 mg and 50 mg, with pack sizes of 1, 3, 5 and 10. Prices are shown in Canadian dollars, and orders ship from Toronto by tracked Canadian service.

The matched Testides report for GHK-Cu 100 mg (report BW-GHKC-100-040626-01, dated Apr 13, 2026) records 99.84% purity and 111.86 mg measured content against a 100 mg label. It documents the supplier sample sent for testing, not every shipped lot, and the original PDF is linked on this page.

Shipped lyophilized (freeze-dried) and stable at room temperature in transit. Store sealed vials in the fridge or freezer on arrival. Once reconstituted, refrigerate. Anything not right? Our guarantee covers it.