References Pickart L, Margolina A
Most people find that taking glutathione about 15 to 20 minutes before a meal, typically in the morning, yields the best results
Eggler AL, Small E, Hannink M, Mesecar AD
However, more human studies are needed to determine whether copper peptides can actually provide such benefits
It is important to emphasise that these proposals are based almost entirely on preclinical data principally in vitro (cell culture) experiments and animal studies and have not been reliably demonstrated in robust human clinical trials: Stimulation of follicle enlargement: Laboratory studies suggest GHK-Cu may increase hair follicle size, potentially counteracting the miniaturisation associated with androgenetic alopecia (pattern hair loss), though this has not been confirmed in humans
2017;12:e0178744 Board PG