C + AHA from SkinCeuticals is an antioxidant-rich treatment that works to diminish and prevent visible signs of aging. A 15% concentration of L-ascorbic acid works to prevent UVA and UVB damage while boosting collagen production. A 10% blend of hydroxy acids sloughs away dead, dull skin cells and diminishes fine lines and wrinkles, revealing smoother, brighter and suppler skin. With regular use, the skin takes on a healthier and more youthful appearance. Key Ingredients:15% L-Ascorbic Acid: this highly potent form of pure vitamin C helps neutralize free radicals and helps protects against oxidative stress while providing visible anti-aging benefitsGlycolic and Lactic Acids: this blend of 10% alpha-hydroxy acids provides an exfoliating effect that helps minimize blemishes, improve skin texture, and increase radiance for healthy, clear skinKey Benefits:Neutralizes damaging free radicals caused by environmental aggressorsExfoliates dry, dull surface cells to help improve the appearance of blemishes and skin textureParaben-, fragrance-, alcohol-, and dye-freeIdeal for normal, combination, and oily skin types | SkinCeuticals C AHA, 1 fl. oz | Dermstore