ghk-cu copper peptide clinical trial skin anti-aging randomized Peptides: 50 Years of Research, Explained Copper Peptide (GHK-Cu) 2% Recovery

For example, increased levels of the Egr gene were observed at 1 h, Nos , Srf , and Kras genes demonstrated increased expression at 1 and 24 h in all vessels, and Egr expression was increased at 24 h in both ovarian veins

The amino acid sequence is in the public domain and there is no composition-of-matter patent worth pursuing, so no commercial sponsor will fund the hundreds of millions a Phase IIIII development programme costs for a compound it cannot exclusively monetise

Achim K, et al

The cognitive research on GHK-Cu is still early-stage, and I would not recommend anyone use it primarily for brain health at this point