Delivering gentle fine line-reducing benefits, the Medik8 Crystal Retinal 6 Serum is an advanced retinaldehyde formula that protects from the noticeable signs of ageing. Powered by 0.06% stabilised retinal that's released via encapsulation technology, the treatment is best suited to experienced users of the active.The fast-acting form of vitamin A is known for its skin-smoothing effect and potent renewing properties. Paired with hyaluronic acid, glycerin and vitamin E, the serum diminishes the look of uneven texture, dullness and discolouration to promote the illusion of enhanced elasticity and bounce. Dermatologist recommended, the innovative Crystal Retinal collection features a unique ladder of five progressive strengths (0.01 - 0.2%) to ensure optimal results at every level of your retinaldehyde journey.97% felt their skin had a more youthful appearance*20% reduction in the appearance of wrinkles*20% reduction in visible pigmentation*11% increase in skin firmness*100% felt Crystal