"And it's not because of any magic it's because these are natural substances that our bodies make and are familiar with, so that's what gives them this incredible safety profile." The FDA, however, has publicly stated that there is not enough evidence from human clinical trials on the safety or efficacy of these drugs

The wound healing cascade and GHK-Cu: Normal wound healing occurs in four overlapping phases: Hemostasis clotting Inflammation immune cell recruitment Proliferation new tissue formation Remodeling scar maturation GHK-Cu appears to favorably influence phases 2, 3, and 4 simultaneously: In the inflammatory phase , it reduces pro-inflammatory cytokines (IL-6, TNF-) while preserving necessary immune signaling In the proliferative phase , it stimulates keratinocyte migration and fibroblast proliferation, accelerating epithelial coverage In the remodeling phase , it promotes type I collagen deposition over type III (scar) collagen, leading to better scar outcomes This multi-phase tissue repair activity makes GHK-Cu a compound of interest when studied alongside other regenerative peptides
In most cases it is not permanent damage
GHK-Cu is not a controlled substance in the UK and can be legally supplied for laboratory research purposes only