The Medik8 Crystal Retinal 20 night serum is a high-strength anti-ageing treatment designed for all skin types. This 30ml serum contains encapsulated retinaldehyde and hyaluronic acid, providing UVA protection and moisturizing properties. Suitable for both men and women, this cruelty-free product from the United Kingdom is formulated to improve skin quality and reduce signs of ageing. With a period after opening of 12 months, this night treatment is a must-have for anyone looking to nourish and protect their skin while they sleep.