What can retinol serum do? Neutralize free radicals Stimulate collagen production Accelerate skin turnover Smoothing fine lines and wrinkles and blurring acne marks And others How it works Retinoids work by prompting surface skin cells to turn over and die rapidly, making way for new cell growth underneath. They hamper the breakdown of collagen and thicken the deeper layer of skin where wrinkles get their start. How to Apply Retinol Serum for Best Results Step 1: Wash your face and apply eye cream. An eye cream would be able to protect the delicate skin around your eyes. Step 2: Wait a few minutes until your skin is completely dry. This is important, because if your skin is at all damp, the retinol will be able to absorb more deeply into your skin and might cause irritation. We want to apply moisturizers and serums to slightly damp skin, but never retinol. Step 3: Take a pea-size amount of the serum and, starting at your chin, apply with your fingertips in upward and outward motions. Step 4: Finish with your moisturizer. Ingredients vitamin-a