Allergic Reactions : Although rare, some people may have allergic reactions
A 2016 study published in Nature Scientific Reports showed GHK-Cu produced no cytotoxicity to human keratinocytes at concentrations up to 5,800 micromolar over 72 hours and did not induce inflammatory biomarkers unlike other copper compounds
Additional best practices include: never reusing needles, as this increases infection risk and causes needle dulling that makes injections more painful
Sadly, this antioxidant molecule is one of the most misrepresented Golden Age agents in the entire optimization space
The primary known effectdelayed gastric emptyingalters the normal digestive rhythm, which may contribute to changes in bowel habits in some individuals
However, due to the cost of these medications as well as potential side effects, taking these drugs for the rest of your life may not be a viable option