d MannWhitney U-test
GHK-Cu is a naturally occurring peptide found in human blood, urine, and saliva that supports wound healing, immune function, and skin health
For in vivo experiments, the closest model would be the C57BL/6 mouse strain though degree of liver injury can vary between sub-strains without change in mechanism
Benefits Decreased appetite and cravings Weight loss Improved blood glucose control Feel fuller faster Better sleep patterns Risk of serious side effects increases in patients with hypoglycemia (low blood sugar), kidney problems, and risk of allergic reactions.
Blood levels rise across the first several weekly doses and settle near steady state after about four weeks. That is why the four-week hold matters: the full effect of a dose change is not visible in the first few days
In terms of the effects of L-carnitine on sports performance, there is mixed evidence