Ideal for problematic and the look of photodamaged skin, Retinol 1.0 contains 1% pure retinol, and should be used for advanced treatment of pre-conditioned skin. Designed for maximum efficacy and stability, SkinCeuticals Retinol 1.0 is formulated with the highest concentration of pure retinol available and enhanced with the latest stabilization and delivery technologies. Studies show retinol helps diminish the appearance of fine lines, wrinkles, and age spots from both environmental and intrinsic aging. Additionally, it helps minimize the appearance of pore size, while reducing blemishes often associated with problematic skin.