... fields. 2.MOQ:1KG L-Glutathione Reduced (GSH)1.is a tripeptide which consists of glutamic acid, cysteine, and glycin. And it ... is widely applied to food, pharmaceutical, cosmetic and other fields.L-Glutathione via microbe fermentation, separation, purification and other modernbioengineering techniques ... (GSSG)≤ 1.5%:Heavy metals≤10.0 ppmArsenic≤2.0ppm L-Glutathione Reduced