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| Attribute | Skin & Regeneration GHK-Cu |
|---|---|
| Summary | The original copper peptide — collagen, skin tone, hair density. |
| Mechanism | Copper-binding tripeptide. Stimulates collagen, elastin, and antioxidant gene expression; supports wound healing. |
| Top outcomes |
|
| Evidence | emerging |
| Half-life | Short systemically; topical action is local |
| Administration | topical, subq |
| Legal status | approved some regions |
| Safety | Very well tolerated topically. Mild local reaction possible with injection. |