A potent antioxidant serum with 20% ascorbic acid (Vitamin C), which helps fade hyperpigmentation, boost collagen production, & increase protection against photo-aging caused by UV rays (best used with sunscreen daily). Vitamin E also boosts protection from UVB rays, Ferrulic acid stabilizes Vitamin C, & doubles the photoprotective effects of Vitamins C & moisturizes skin, & protects from free radical damage. Hyaluronic acid hydrates skin & allows water-soluble active ingredients to better penetrate the skin. An anti-aging powerhouse!