Ergothioneine VS Glutathione: Which Antioxidant is Superior? Glutathione Related Enzymes and Proteins: A Review Glutathione (GSH) Vs. NAD+ Both serve as powerhouse molecules, and are critically important for cellular health. They work together to create stronger, healthier, longer lived cells. Yet, they function differently within our Dr. Glutathione (GSH) is the most prevalent, powerful antioxidant in the body and recharges other antioxidants, but our ability to produce it declines as we age. That's why it's a GSH Glo Glutathione Assay