Vitamin C 20% Serum Advanced Formula + 1 oz / 30 ml - 20% Vitamin C, 0.5% Ferulic acid, and hyaluronic acid. Highly concentrated, UV protection, prevents skin aging. http://bit.ly/xfteZI Vitamin C 20% Serum Advanced Formula + 1 oz / 30 ml - 20% Vitamin C, 0.5% Ferulic acid, and hyaluronic acid. Highly concentrated, UV protection, prevents skin aging. Vitamin C 20% Serum Advanced Formula + 1 oz / 30 ml - 20% Vitamin C, 0.5% Ferulic acid, and hyaluronic acid. Highly concentrated, UV protection, prevents skin aging. Presented by Cosmetic Skin Solutions LLC.Helps reduce the appearance of fine lines and wrinkles. Neutralizes free radicals, defends against environmental damage, and stimulates collagen synthesis. Fast absorbing, non-greasy formulation. For optimal results, follow with Cosmetic Skin Solutions Hydra...