Medik8 C-Tetra+ Luxe has a similar effect to Medik8 C-Tetra and also contains brightening and nourishing ingredients. This serum contains tetrahexyldecyl ascorbate, a very stable form of vitamin C. It offers particularly good antioxidant protection against free radicals, which can cause skin damage and premature aging. In addition, it stimulates collagen production, which reduces lines and wrinkles. The skin also looks fuller, more youthful and more radiant. Vitamin E works together with vitamin C to improve the antioxidant effect of the serum, so that the skin is protected during the day. Medik8 C-Tetra+ Intense also contains maracuja oil, vitamin F, squalane and red ginseng. Maracuja oil has a brightening effect, it provides the skin with fatty acids and it offers antioxidant protection. Vitamin F and squalane nourish the skin and they strengthen the natural barrier of the skin against free radicals. Red ginseng strengthens the brightening effect of the serum.