Single component
GHK-Cu
Glycyl-L-histidyl-L-lysine copper(II)
A tripeptide — glycine, histidine, lysine — bound to a copper(II) ion. The copper is why a reconstituted vial turns blue, and why anything containing GHK-Cu should be kept out of the light. It occurs naturally in human plasma, saliva and urine.
Identity
The molecule.
- Formula
- C14H22N6O4 · Cu
- Molecular weight
- 401.91 · copper complex
- Sequence
- Gly-His-Lys
Solubility
How much water it needs.
Source: MedChemExpress product page
Cross-check: 50 ÷ 401.91 × 1000 = 124.4 mM — matches the stated molarity
Used in the calculatorThe solver treats 50 mg/mL as the ceiling for GHK-Cu and will not return a water volume that puts the solution above it.
Storage
Keeping it.
Refrigerate after reconstitution and keep it dark — the copper complex is light sensitive.
We print no beyond-use date. Why that number is missing
The papers
What the research studied.
Every reference resolves on PubMed. These studied GHK-Cu on its own, not a blend, and mostly in animals.
- Mendias CL, Awan TM2026Sports MedicineReview
Safety and Efficacy of Approved and Unapproved Peptide Therapies for Musculoskeletal Injuries and Athletic Performance
Reviews the pharmacology, safety profile and regulatory status of twelve peptides sold direct to patients — BPC-157, GHK-Cu and TB-500 among them. Describes the market in unapproved compounds as operating largely outside regulatory oversight.
PMID 41966639 → - Siméon A, Wegrowski Y, Bontemps Y, Maquart FX2000Journal of Investigative DermatologyAnimal study
Expression of glycosaminoglycans and small proteoglycans in wounds: modulation by the tripeptide-copper complex glycyl-L-histidyl-L-lysine-Cu(2+)
Rat experimental wound model plus rat dermal fibroblast cultures. Repeated 2 mg injections of GHK-Cu raised wound-tissue dry weight and total protein, and increased type I collagen and glycosaminoglycan production.
PMID 11121126 →
Where it appears
Blends that contain GHK-Cu.
Also written as GHK copper peptide · copper tripeptide-1 · ghkcu.
GHK-Cu is a research chemical, not an approved medicine. This page describes the molecule and how to handle it; it makes no claim about what GHK-Cu does. Not medical advice.