Dosing Considerations While this article is educational and not prescriptive, its worth noting that reported dosages in the biohacking and wellness communities typically range from 250mcg to 1000mcg daily, often split into one or two doses
Documented biological mechanisms More than 100 preclinical studies have documented various GHK-Cu effects, mainly on cultured fibroblasts, skin explants and murine wound healing models: Stimulation of type I and III collagen synthesis in cutaneous fibroblasts Increased elastin and modulation of metalloproteinases (MMP-2, MMP-9) anti-degradation profile Activation of decorin and glycosaminoglycan synthesis (hyaluronic acid, chondroitin sulfate) VEGF induction and angiogenesis documented on chorioallantoic membrane and in vivo Anti-oxidant activity by modulating expression of SOD, catalase, glutathione peroxidase Broad transcriptomic modulation : microarray studies have shown more than 4000 genes modulated by GHK-Cu on fibroblasts, with a tissue rejuvenation signature Standard experimental models Primary fibroblast cultures human (Hs27, BJ) and murine, concentrations 10-100 g/mL GHK-Cu Ex vivo skin explant models to test penetration and dermal matrix action Murine wound models (excisional wound, burn) with kinetic closure measurement and histology Full-thickness healing models with immunohistochemical staining (collagen I, III, -SMA for myofibroblasts) Matrixyl: the synthetic palmitoyl pentapeptide Structure Matrixyl (Pal-KTTKS, generic name palmitoyl pentapeptide-4 ) is a synthetic pentapeptide Lys-Thr-Thr-Lys-Ser derived from the C-terminal propeptide of type I procollagen
S-adenosyl-L-methionine, derived from methionine, serves as the substrate for SAM-dependent methyltransferases, which catalyze the transfer of its methyl group
The same active compound is in many topical copper peptide anti-aging products youll find at Sephora, but injected GHK-Cu skips the struggle of the stratum corneum and reaches the dermis directly
