The natural decline of GHK-Cu can be as much as 60% by age 60
Centrally [1], behavioral data provided anxiolytic [57,58,59], anticonvulsive [15,58,60,61,62,63,64], antidepressant effect [65,66,67], counteraction of catalepsy [68,69,70], and counteraction of positive and negative schizophrenia symptoms models [59,70]
Glutathione is a remarkable antioxidant, but there's no single dose that works for everyone
Serum hyaluronan and aminoterminal propeptide of type III procollagen: variation with age
Your cells naturally recycle GSSG back into GSH, although many peoples glutathione recycling and production systems are suppressed by genetics or environmental stress, especially as we age