Paula's Choice C15 Super Booster serum unveils radiant, youthful-looking skin. This concentrated formula features 15% vitamin C with vitamin E and ferulic acid. It visibly brightens skin, improves the appearance of fine lines and wrinkles, and boosts overall glow. Suitable for all skin types, this super booster comes in a 20 ml format. The addition of antioxidants works to defend against environmental stressors.