Glutathione Injection is used as an antioxidant therapy, for detoxification support, and as an adjunct in certain medical conditions where enhanced antioxidant capacity is desired
Reduced glutathione : GSSG for short, this is the inactive or "off" form that gets recycled back into the reduced form to continue fighting oxidative stress
GHK-Cu for Skin in the UK: Clinical Evidence, Gene Activation Mechanisms, and Verified Sourcing Glycyl-L-histidyl-L-lysine copper(II) better known as GHK-Cu was first isolated from human plasma albumin in 1973 by Loren Pickart during a study investigating age-related differences in protein breakdown products

NAC may help by supporting antioxidant defenses and reducing oxidative stress, though its effects vary depending on the population and fertility issue being studied.32 In men, one randomized trial found that 600mg of NAC, selenium, or the combination improved semen parameters, with the combination producing stronger effects than either ingredient alone.23 In women undergoing assisted reproduction, NAC has also been studied for oocyte and embryo quality, though this research is still relatively early and not definitive.24 PCOS NAC has attracted particular interest in PCOS, where insulin resistance, inflammation, and oxidative stress often overlap.17 Researchers think NAC may help by improving insulin sensitivity and reducing oxidative stress, which may, in turn, support ovulation and reproductive function