Medik8 Crystal Retinal 3 is Medik8's entry point for those who are new to vitamin A or have tried mild retinol formulas and the answer to those looking to prevent early signs of skin ageing. Revealing younger-looking skin with just one tube, this ground-breaking cream serum is formulated with 0.03% Retinaldehyde, a super-charged derivative of vitamin A, which works to promote the skins natural collagen production, rebuild lost collagen and increase cell turnover, promoting a smoother, brighter and healthier complexion. By requiring only one conversion to retinoic acid, the Crystal Retinal works 11 x faster than other forms of retinol*, delivering results comparable to clinical-grade vitamin A. Delivering gentle and powerful results, this serum is formulated with a globally patented stability system  that ensures maximum retinal potency to the very last drop, delivering gentle and powerful results without irritation.  Clinically proven to improve the appearance of pigmentation, fine lin