Figure 2. The effects of hydrogenized water on intracellular glutathione (GSH) levels in human SH SY5Y neuroblastoma cells. The cells were treated with a series of culture media containing various concentrations of hydrogenized Agedependent changes in glutathione metabolism pathways in the lens: New insights into therapeutic strategies to prevent cataract formationA review Lim 2020 Clinical & Experimental Ophthalmology Wiley Online Library The reasons why CYSTEINE is considered the rate limiting factor in intracellular GLUTATHIONE production in our Body Low Concentration within our cells Not readily bioavailable in our DIET The Cysteine Every time you exercise your body generates oxidative stress as a natural byproduct of muscle contraction and energy production. At moderate levels that is a healthy signal. But when exercise intensity exceeds