Medik8’s Crystal Retinal 20 is formulated with stabilised retinal, a powerful derivative of vitamin A with next-generation anti-ageing results. Unlike retinol, which must first be converted to retinaldehyde and then to retinoic acid within the skin, Crystal Retinal only requires one conversion to retinoic acid. Unmatched in its age-defying power, retinal can deliver results comparable to clinical-grade vitamin A up to 11 times faster than classic forms of retinol. The ground-breaking overnight serum visibly minimises fine lines and wrinkles; firming and plumping the appearance of the complexion to resurface skin texture and soften the face. Featuring hyaluronic acid, glycerin and vitamin E, it hydrates skin at every level to deliver a visibly supple, even-toned, more youthful-looking complexion. More than that, it actively helps reduce blemish-causing bacteria to keep skin looking clear and balanced.