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 What the Glass Skin Glutathione Strip 30 Strips x 0.012 oz(344mg) with Collagen, Acerola Extract, Milk Thistle, Hyaluronic Acid Fast Absorption, Skin & Liver Support TikTok Shop Glutathione Anyone have it not dissolve? GLP 1 Forum Glutathione will not dissolve : r PeptideDiscussion 5 Common Mistakes to Avoid While Using Glutathione in Skincare