OxyMin® Ascorbic Acid is 100% pure pharmaceutical grade Ascorbic Acid micro-crystalline powder. This form of crystalline powder is highly soluble in water or juice. Ascorbic acid is an organic acid with antioxidant properties. The L-enantiomer of ascorbic acid is commonly known as vitamin C. This water soluble form of Vitamin C is commonly used as an antioxidant food additive/preservative. Features OxyMin® Guarantee of Purity Each batch of OxyMin® Ascorbic Acid is assayed for heavy metals and organic volatile impurities. Free from pesticides, herbicides, dyes, preservatives & stabilizers. Yeast, starch & gluten free. Packed and sealed in a tamper evident tub for your conveneince and to ensure stability Specifications Contains 100% pure pharmaceutical grade Ascorbic Acid micro-crystalline powder. Note: Exposure to oxygen, metals, light and heat destroy ascorbic acid, so it must be stored in dark and cold and not in a metal containment.