GHK-Cu
Also known as Copper peptide, Copper tripeptide-1
GHK-Cu is a tripeptide of glycine, histidine and lysine bound to a copper ion. It occurs naturally in human plasma, saliva and urine, and plasma levels decline with age. It is the most widely used peptide in cosmetic skincare, where it appears as an ingredient in topical products rather than an injectable.
Who has GHK-Cu in stock
| Supplier | Listing | Price | Per mg | |
|---|---|---|---|---|
| XL PeptidesBest valueUK | GHK-Cu 50mg Research Peptide | £17.99 | £0.36 | In stock, go |
| Peptides UKUK | GHK-Cu 50mg | £24.95 | £0.50 | In stock, go |
| EuroPeptidesEU | GHK-Cu 50mg | €34.90 | €0.70 | In stock, go |
| HiPeptidesUK | GHK-Cu | £24.99 | – | In stock, go |
| PEAK_PEPTIDEInternational | GHK-CU | €34.90 | – | In stock, go |
| Baltic PeptidesEU and UK | GHK-Cu (50mg / 100mg) | €34.99 | – | In stock, go |
| Certa PeptidesEU and UK | GHK-Cu | €39.99 | – | In stock, go |
| True PeptidesInternational | GHK-Cu | US$40.00 | – | In stock, go |
| Baltic PeptidesEU and UK | GHK-Cu Serum 1% (30mL) | €49.99 | – | In stock, go |
| AminoPeptidesUK | GLOW BLEND (GHK-Cu, BPC-157, TB500) | 70mg | £65.00 | – | In stock, go |
| Baltic PeptidesEU and UK | GLOW 70mg (GHK-Cu + BPC-157 + TB-500) | €79.99 | – | In stock, go |
| AminoPeptidesUK | KLOW BLEND (GHK-Cu, BPC-157, TB500, KPV) | 80mg | £80.00 | – | In stock, go |
| 99 Purity PeptidesUS | Copper Peptide Comparator | US$89.99 | – | In stock, go |
| AminoPeptidesUK | BPC-157 10mg, TB-500 10mg & GHK-Cu 50mg | Glow Peptide Bundle | £99.00 | – | In stock, go |
| 99 Purity PeptidesUS | Copper Peptide Spray Comparator | US$114.99 | – | In stock, go |
Live stock is checked hourly at 10 suppliers. A further 7 vetted suppliers have no live feed yet, so we never show them as in stock. We earn a commission from some supplier links when you buy. It costs you nothing extra and never changes the order, which is by price per mg.
What it has been studied for
- Collagen and elastin synthesis in skin fibroblast cultures
- Wound healing in animal and some human studies
- Hair follicle activity in laboratory studies
- Gene expression changes in cultured human cells
Evidence level: Early human data. Human data exists, but read the details above before assuming it applies to you.
What happened in human trials
Used in skin creams for decades with little irritation. Injected GHK-Cu has no human trial data.
Not named on the prohibited list, but it has no approval as a medicine, so the catch-all S0 rule may apply. Check with UK Anti-Doping first.
UK legal status
Permitted as a cosmetic ingredient in topical products under UK cosmetics regulation. Injectable preparations are a different matter and are not licensed medicines.
Handling
Distinctive deep blue colour from the copper ion, so a colourless solution suggests something is wrong. Light-sensitive: store in the dark. Copper peptides are generally kept away from strong acids and from vitamin C in topical formulation. Commonly 50mg or 100mg per vial.
Questions
Why is GHK-Cu blue?
The copper ion. A correctly reconstituted solution is a clear deep blue. A colourless or cloudy solution indicates a problem with the material or the mixing.
Is topical GHK-Cu legal in the UK?
Yes, as a cosmetic ingredient. Plenty of licensed skincare products contain it. That is entirely separate from injectable preparations.
Before you buy anything, run the four-question check for red flags that apply to you.