Uniquely formulated, MEDIK8 Crystal Retinal Night Serum is a clinically proven miracle serum with anti-ageing results that are noticeable after the use of first tube. Contains 0.03% of a new form of vitamin A called retinaldehyde or retinal, which proven to work 11 times faster than the classic form of vitamin A, retinol. Fights fine lines and wrinkles, hyperpigmentation and uneven skin texture. Hyaluronic acid has the ability to attract and retain more than 1000 times its own weight in water, d