The Obagi360 Retinol 0.5 treats as well as prevents the appearance of fine lines and wrinkles on the skin. The Obagi 360 Retinol 0.5 penetrates deep into the layers of the skin in the evening and boosts new healthy skin cell growth to diminish the appearance of fine lines, wrinkles and other skin impurities on the face. With its process of gradually releasing the retinol, the skin texture is refined leaving a clearer looking skin complexion and tone with very minimal irritation. The Retinol 0.5 is effective, yet not abrasive, so it will work with very minimal irritation. The Obagi 360 Retinol 0.5 is a great way to stop fine lines and wrinkles from forming at an earlier age and ensure youthful looking skin that will last a lifetime.