l-cysteine glutathione L-Glutathione, Cysteine and Vitamin C 2X100Caps Amino Acid Immune Life Extension L-Cysteine-glutathione disulfide | CAS 13081-14-6

With respect to antioxidant interventions, apart from vitamin E, other antioxidants such as carotenoids, ascorbic acid, and flavonoids have been shown to have a very mild effect on preventing oxidative damage (Halliwell 2020

Protection against oxidative damage, particularly in the testes, improves reproductive hormone concentrations, testicular histology, sperm membrane function, and mitochondrial activity and thereby improves semen volume, sperm concentration, viability, motility, and sperm polyunsaturated fatty acid content, sperm-egg penetration, fertility, and reproductive performance

Johnston, S

Adv Bot Res 52:253276 Reisinger S, Schiavon M, Terry N, Pilon-Smits EA (2008) Heavy metal tolerance and accumulation in Indian mustard ( Brassica juncea L.) expressing bacterial -glutamylcysteine synthetase or glutathione synthetase