Retinol regulates the skin metabolism, in both the top layers - the epidermal wall - to refine texture, control problem skin and reverse sun damage, and in the deeper layers - boosting protein production in the dermal fibroblasts - to give density, volume and firmness. After one week of using Lixirskin Night Switch Retinol 1%, your skin is softer and smoother when you touch, more refined and clear when you look. A little patience! Your wrinkles will appear less deep and your facial shape fuller.