If you are already using retinoids, AHAs, or other actives that increase cell turnover, adding GHK-Cu on top without adjusting your routine is asking for trouble
Anecdotally reported by users to improve sleep quality and recovery, consistent with growth hormone's established role in promoting slow-wave sleep, though this specific outcome has not been directly tested in CJC-1295 clinical trials
Bergheim I, Weber S, Vos M, Krmer S, Volynets V, Kaserouni S, McClain CJ, Bischoff SC: Antibiotics protect against fructose-induced hepatic lipid accumulation in mice: role of endotoxin
Lancet 387 , 679690 (2016)
Many people use them together for enhanced healing effects
It is entirely valid to feel frustrated by a medical system that often struggles to understand or treat these invisible illnesses