Sodium Ascorbyl Phosphate is a stable, water-soluble derivative of vitamin C (ascorbic acid). It is primarily used in cosmetic formulations for its potent antioxidant properties, helping to protect the skin from environmental stressors. Unlike pure ascorbic acid, Sodium Ascorbyl Phosphate offers enhanced stability, making it a preferred choice for skincare formulations targeting anti-aging, brightening, and acne prevention.