Ascorbyl Glucoside Solution 12% provides a lightweight, water-based formula that helps reduce signs of aging by brightening and balancing uneven skin tone. Unlike direct forms of Vitamin C, this easy-to-use serum contains a water-soluble Vitamin C derivative that converts to Vitamin C upon application, making it less likely to irritate. Because it has advanced antioxidant properties, it also protects skin from the visual effects of damage caused by environmental stressors, helping to maintain a more radiant complexion. Note: Vitamin C in its pure form is unstable in water. Ascorbyl Glucoside is a water-soluble derivative of Vitamin C. It is more stable in water but less potent than direct L-Ascorbic Acid.