If using both, apply them at different times of day, vitamin C in the morning, GHK-CU in the evening
Journal of Biological Chemistry 263:13475-13478, 1988
Specifically air injection during bacteriostatic water addition
It may also have some beneficial effects for: heart failure coronary artery disease heart attack recovery peripheral vascular disease, which causes narrow arteries However, it is important to note that L-carnitines heart benefits remain controversial , and further research is necessary
In the last step, a second GSH is used to regenerate the enzyme and form glutathione disulfide (GSSG) (Savaskan et al., 2007)
"Better" depends on your health history, goals, and what is safely available