SkinMedica makes some of the greatest medical grade retinol products. They are potent so if you’re not used to retinol then I would recommend starting with the lowest percentage. This has a slightly creamy consistency, and a little goes a VERY long way in terms of how much you ACTUALLY NEED. Apply only a pea-size amount. It’s helpful to pump it on the back of your hand, then dot across cheeks, forehead, and chin. It reduces the appearance of pores, improves skin texture, minimizes lines/wrinkles, and gives a brighter appearance to skin.