ghk-cu copper uglies peptide also known as GHK-Cu. I’m not saying I look younger than 36, but I think I look pretty good for my age. My skin journey has been rigorous working on treating acne flare ups and Copper Peptides (GHK-Cu) - Skin
Description
Pharmaceutical Research 28 (8), 18951904 (2011)

Long-term effects in humans are unknown

Liver and kidney function tests can identify any unexpected impacts on organ function
Help ALS patients