Medik8’s new Crystal Retinal 24 serum promises a powerful anti-aging solution with results seen in just days. This potent retinol formula works 11 times faster than standard retinol to reduce wrinkles, even skin tone, and improve overall skin texture. For a limited time, skincare expert Andrew Wheatcroft is offering a 20% discount on the product using code ANDREW20. Read on to learn more about the benefits and reviews of this game-changing serum.