Skin, hair & aesthetics
GHK-Cu
A copper peptide that occurs naturally in the body, studied for skin repair, collagen production and wound healing.
Most human studies did not use injections. Data on injecting it is limited.
How it works
A copper peptide found in blood whose levels drop with age. It stimulates collagen and elastin, helps wounds heal, acts as an antioxidant and influences many genes.
What it is used for
Skin aging, wound healing and hair.
What the evidence says
Human studies show fewer wrinkles and denser skin, but they did not use injections; data on injecting it is limited.
Side effects and cautions
Stinging or pain at the injection site and possible bluish skin marks. Too much copper can be harmful.
Half-life
Not established in people
Makes sense for
- Skin aging, wound healing and hair support
Does not make sense for
- Wilson's disease or other copper disorders
Boost the effect
- Vitamin C: the body needs it to build collagen
- Daily sunscreen: UV light breaks down collagen
- Avoid high-dose zinc supplements: they lower copper levels