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GHK-Cu is a naturally occurring copper-binding tripeptide studied primarily for collagen synthesis, skin biology, wound healing, and broad gene expression regulation with a particular strength in dermatological and extracellular matrix research

*Your physician will help determine which protocol is safest and most effective for your specific biology

The safety profile has been favorable through several years of real-world use

R&D Systems, Minneapolis, MN) in RPMI-1640 (Gibco, Detroit, MI) medium supplemented with 2% penicillin/streptomycin (Gibco), 20 mM HEPES (Gibco) and 5% pooled normal human heat-inactivated and sterile-filtered AB serum (Innovative Research, Novi, MI) for 7 days, with a media change on day 5 with fresh M-CSF (10 ng/mL)