GHK

The copper-free form of the GHK tripeptide, studied for wound healing and gene-expression effects in fibroblasts.

GHK is classified as a copper-free tripeptide. Its current development status is: cosmetic use / preclinical. Human trial data exists but is limited in size, duration or independence; conclusions should be held loosely.

The Peptide Institute tracks GHK because it is actively sold through research-compound and telehealth channels. Our interest is narrow and specific: what is actually in the vial, whether the label is accurate, and whether the sellers of it can document what they claim. We take no position on whether anyone should use it.