GHK-Cu is present in human plasma at approximately 200 ng/mL (roughly 500 nM) in young adults around age 20, declining to approximately 80 ng/mL (roughly 200 nM) by age 60, representing a 60% reduction over four decades
& Dynlacht, B
It is also a good source of L-carnitine, with two tablespoons of peanut butter containing about 1.6 mg of L-carnitine
After serum limitation-induction, positive FOXO4 and p53-pS15 immunofluorescence staining was stronger in the nucleus of keloid fibroblasts at 48 h, but in the nucleus of normal skin fibroblasts at 72 h
Dermatology Research and Practice, 2024 , 5551774.
Mechanisms of Action Peer-reviewed research, such as Multifunctionality and Medical Potential of BPC-157 in MDPI Pharmaceuticals , outlines its complex, multi-system effects: Angiogenesis: Upregulates VEGF and other growth factors for improved circulation