Medik8's Crystal Retinal 3 is the perfect serum for those new to Vitamin A (retinol), those looking to build up Vitamin A tolerance, and those wanting to prevent the first signs of skin aging. This night serum visibly minimizes fine lines and wrinkles, firms skin tone, and renews skin texture. It contains 0.03% Encapsulated Retinaldehyde. Proven to work up to 11 times faster than retinol, retinaldehyde is a revolutionary new form of vitamin A that targets fine lines and wrinkles, age spots, and uneven skin texture. It also contains hyaluronic acid and glycerin, which provide optimal hydration, leaving skin feeling supple and soft. Finally, it contains vitamin E, a powerful antioxidant that protects the skin from free radicals. Free of parabens, palm oil, phthalates, alcohol, and artificial fragrances. This product is also vegan and cruelty-free. Use this product in the evening, and gradually increase the dosage. Use it twice a week for the first two weeks, then increase the dosage to one evening per week until you can use it every evening.