Your glutathione vial is not a bad batch. Glutathione dissolves at 20 to 50 mg mL. When you add 2mL of water to a 600mg vial, that is 300 mg mL. The powder physically Glutathione enables full utilization of wool wastes for keratin production and wastewater decolorization ScienceDirect Jajis Glutaglow The Glutathione and Vitamin C Drink The Glutathione tablet which becomes a tasty tangy orange drink when dissolved in a glass of cold water. Gives instant refreshing feeling with DT 109, Induces glutathione biosynthesis (TBI5732) Tribioscience Best way to dissolve glutathione powder to keep it active Primeside Liposomal Glutathione Supplement Body's Master Detoxifier