the most powerful antioxidant is melatonin not glutathione Actions of Melatonin: A Systematic Review of Animal Studies Melatonin as a master regulator

& Nowlan, M

Zheng, F

Signs and symptoms of vitamin B12 deficiency can include fatigue, pale skin, headaches, shortness of breath, fast heartbeat, gastrointestinal issues, mouth inflammation, paresthesias (abnormal sensations), decreased cognitive ability, depression, muscle weakness, imbalance and incoordination, vision problems, and erectile dysfunction

Patels advancements in transdermal GSH delivery also suggest that we may be able to increase cellular bioavailability, potentially allowing humans to reap the benefits of GSH

13 Sarkar R, Yadav V, Yadav T, Mandal I

A clinical study on glutathione supplementation in healthy adults documented improved markers of aerobic metabolism and reduced exercise-induced oxidative damage after 2-4 weeks of supplementation (Aoi et al., 2015)