maca contains glutathione Nature's Way Standardized Extract Vegan Capsules 350 mg of Extract Per Serving, 60 ct Maca Root – Zhou Nutrition

ALL PRODUCTS OFFERED ARE INTENDED FOR LABORATORY RESEARCH USE ONLY."

However, the preceding sections of this paper establish that GSH is not merely a passive antioxidant, but an immune regulator and modulator with actions dependent upon the pathophysiologic context (Ghezzi, 2011) GSH acts to regulate the thresholds necessary for immunologic activation through redox-sensitive signal transduction pathways, influences antigen presentation and the development/differentiation of immune cells, and modulates the production of cytokines

Michelet et al., 2005)

Its naturally present in the human body, and most users experience no adverse reactions