Because it does its specific job without causing a messy spillover into other hormone systems, doctors view it as one of the cleanest and safest peptides in its class
Science 324 , 654657 (2009)
GHK-Cu Peptide Timeline, Week by Week, From Day 1 to Month 6 Heres what the timeline for topical GHK-Cu before and after actually looks like based on the Finkley 2005 study, Carey/Pickart ultrasound work, the Pickart & Margolina 2018 review, and consistent user-reported patterns
By contrast, GHRP-6-treated cardiomyocytes maintained intact sarcolemmal and mitochondrial structures, with minimal evidence of injury
Furthermore, PS1V97L transgenic mice exhibited increased inflammatory cytokines including IL-1 and TNF, which were attenuated by sulforaphane supplementation (Hou et al., 2018)