GHK-Cu vs Epithalon
Both are marketed for ageing. GHK-Cu is a copper-binding peptide best known from skin creams; epithalon is a short lab-made peptide studied mainly in Russia. Neither is approved as an injection.
At a glance
The facts side by side. Tap a name for its calculator.
| GHK-Cu | Epithalon |
|---|---|
| Evidence | |
| Limited human evidence. Human data is mostly for skin creams; injected use is not well studied. | Limited human evidence. Mostly Russian studies that haven’t been independently repeated. |
| Vial sizes | |
| 5, 10, 50, 100 mg | 10, 20, 50 mg |
| Usual dose range | |
| 200–2,000 mcg | 5–10 mg |
| How often | |
| Daily | Daily, 10–20 day cycles |
| Unmixed | |
| Freezer −20°C | Freezer −20°C |
| After mixing | |
| Fridge 2–8°C, use within 28 days | Fridge 2–8°C, use within 28 days |
What’s claimed
GHK-Cu is claimed to boost collagen and skin repair, and lab studies show it switches many genes on and off. Epithalon is claimed to switch on telomerase, an enzyme that maintains the ends of chromosomes. Most of this comes from cell and animal studies.
What’s been shown in people
For GHK-Cu, the human evidence is mostly for creams on the skin, not injections. For epithalon, it’s a small number of older studies, mostly from one research group. Neither has been shown to slow ageing in people.
Units
GHK-Cu is usually measured in micrograms and epithalon in milligrams, so check the unit before you enter a dose.
The short version
Human evidence for injecting either is thin: GHK-Cu’s human data is mostly for skin creams, and epithalon’s comes from a small group of Russian studies. Neither has been shown to slow ageing in people.