Red blood cells as intelligent antioxidant carriers to rescue sperm in in vitro fertilization (IVF): A hypothesis ScienceDirect Frontiers Glutathione and selenium nanoparticles have a synergistic protective effect during cryopreservation of bull semen Glutathione = the master antioxidant. But is it the magic fertility fix everyone thinks it is? Here's the truth: It protects eggs and sperm from oxidative stress. Low levels are linked Full article: Immunocytochemical Localisation of Phospholipid Hydroperoxide Glutathione Peroxidase in Bull's Spermatogenic Cells