glutathione and free radicals as Oxidative Stress Marker in Cancer Exploring ultrasound-induced free radical formation:

Our studies on activation of systemic healing in mice, rats, and pigs suggest that about 50 milligrams of GHK-Cu would be effective throughout the human body, although dose-ranging to determine the minimum active dosage was never performed

Glutathione neutralises the free radicals that damage cells and accelerate aging

Epithalon is the synthetic, isolated tetrapeptide that was identified as the primary active component responsible for Epithalamins anti-aging effects

Dvorak, H.F

The discovery of superoxide dismutase in mammals and then in plants underlined the physiological importance of oxygen free radicals in biological cells (McCord and Fridovich 1969