The C-tetra Luxe from Medik8 is a Vitamin C protective antioxidant serum. This serum is the more luxurious version of the C-tetra serum. It contains 14% tetrahexyldecylascorbate (stable form of vitamin C). It has increased brightening power and provides extra nourishment. Tetrahexyldecylascorbate provides protection against free radicals. It also stimulates the production of collagen to reduce fine lines and wrinkles, making the skin tone look full, radiant, and youthful again. It also contains Vitamin E which also protects the skin against free radicals. Free from synthetic colors, parabens, palm oil, phthalate, alcohol, artificial fragrances. This product is also vegan and animal-friendly. Use this product in the morning.