SkinHuman RCT
GHK-Cu: what the skin studies show, and why injections are a different question
A copper peptide with decades of lab work and a few small human trials on skin and ulcers. Nobody has published a trial of injecting it.
A copper-binding tripeptide found in human blood; small topical skin and ulcer trials exist, but no human trials support injecting it.
A copper peptide with decades of lab work and a few small human trials on skin and ulcers. Nobody has published a trial of injecting it.