Korres Grapefruit Instant Complexion Enhancing Mask. A unique cocktail of fresh fruits, rich in fruit acids, sourced from Grapefruit, Orange, Apples and Kiwi juice, contains the strongest dose of Vitamin C, which gives a healthy glow to the complexion. Care for the skin with Argan Oil and Shea Butter, which provide protection, nourishment, softness and elasticity.