Ascorbic a (water-soluble pure Vitamin C), 3-O-Ethyl Ascorbic Acid (Vitamin C derivative) Ascorbyl Tetraisopalmitate (stable oil-soluble derivative of Vitamin C) Antioxidant effects; helps reduce melanin synthesis and oxidation; promotes collagen synthesis, which plays a key role in skin elasticity Hippophae Rhamnoides Water, Hippophae Rham