GHK-Cu has by far the most extensive published research record of any copper-binding tripeptide
Product: AOD 9604
It absorbs quickly with a lightweight, slightly silky finish without feeling sticky. This formula pairs potent L-ascorbic acid with more stable, gentler derivatives3-O-ethyl ascorbic acid, ascorbyl glucoside, and ascorbyl tetraisopalmitatewhich extend antioxidant benefits, boost tolerability, and improve overall stability
Sikiric, P., Boban Blagaic, A., Strbe, S., Beketic Oreskovic, L., Oreskovic, I., Sikiric, S., Staresinic, M., Sever, M., Kokot, A., Jurjevic, I., Matek, D., Coric, L., Krezic, I., Tvrdeic, A., Luetic, K., Batelja Vuletic, L., Pavic, P., Mestrovic, T., Sjekavica, I.,