Let me take time to demystify the benefits of Vitamin A for the skin. Retinol is a form of Vitamin A. It can be found in carrots, green leafy vegetables, and sweet potatoes. When we eat foods rich in Vitamin A other parts of body use it before it gets to the skin. Unfortunately, less than 3% makes it topically to support and nourish the skin. This is why it is essential to apply Vitamin A topically to the skin. Retinols increase the skins natural turnover rate, remove dead skin that clogs the pores, and increase collagen production decreasing fine lines and wrinkles. There are various forms of retinol that all go through a conversion process until they end up as retinoic acid which is the end form that interacts with the skin directly. It is best to use retinol at night starting off one time every 3 days and gradually building up as the skin tolerates it. As always, please make sure to apply sunscreen in the daytime...even on cloudy days!