If it sounds too good to be true, its because it is
GHK-Cu increases collagen, decorin, glycosaminoglycans, and promotes fibroblast activity in aged human skin. Pickart & Margolina, Oxidative Medicine and Cellular Longevity Antioxidant and Anti-Inflammatory Properties GHK-Cu neutralizes free radicals and protects against oxidative stress caused by environmental factors such as UV radiation and pollution
Endothelial dysfunction in HIV infection: experimental and clinical evidence on the role of oxidative stress
If you answered yes to any of these questions then theres a good chance that you are positive for a genetic predisposition
This is usually temporary and fades as the skin adjusts
For example, a study of 643,687 levothyroxine users found that over-replacement was associated with higher AF risk (OR: 1.31, 95% CI: 1.241.38), while another study showed increased stroke risk (OR: 1.33, 95% CI: 1.241.43) [19, 36]