The effectiveness of compound X is oftentimes dependent on the presence of compounds Y and Z and so on. Endogenous compounds like glutathione get a lot of commercial attention but they do Redox State of Glutathione and Cysteine in Plasma Following Acute Stroke Frontiers Glutathione: A Samsonian life sustaining small molecule that protects against oxidative stress, ageing and damaging inflammation The AsAGSH Cycle: A Vital Line of Defense Against Heat Stress Induced Oxidative Damage in Plants Springer Nature Link Glutathione & GHK Cu Cycling: Proper Usage Guide TikTok Ascorbic acid metabolism during sweet cherry (Prunus avium) fruit development PLOS One