GHK-Cu

A 3-block peptide found in your blood. With copper attached, it is called GHK-Cu. Studied mostly for skin.
What it's made of
G H K, plus one copper atom held by the chain.
Load it in the Peptide builder →Where it comes from
Found naturally in human blood. First described in the 1970s.
What it's studied for
- ◐ Reported
Skin appearance: small trials of creams with GHK-Cu reported fewer and shallower wrinkles over 8 to 12 weeks.
- ○ Animal / lab only
Wound healing: wounds closed faster in animal studies.
- ◌ Theory
Gene activity: computer analysis of cell data suggests it changes many genes linked to repair. That is not proof of a benefit.
Studied for ≠ proven to work. Check the stamp.
What we don't know
- ?
The claim that blood levels drop by more than half between age 20 and 60 traces back to one unpublished 1973 PhD thesis. I could not find anyone who has measured it again.
- ?
Much of the research comes from the scientist who discovered it.
- ?
There are no human studies of it injected.
Status
- Used in skin-care products.
- Not approved as a drug.