Promote a smoother, more radiant-looking complexion with Medik8's Crystal Retinal range. Designed to tackle fine lines, wrinkles and uneven texture, Medik8's Crytal Retinal selection delivers fast-action benefits in a range of different strengths. Whether you're a retinol pro or just starting out, Medik8's Crytal Retinal line has a solution to suit your needs, tolerances and skin care goals.