It's no secret that retinol ticks practically every box in your anti-aging wishlist. It's effective against fine lines and wrinkles, boosts collagen production, helps banish hyperpigmentation, comes recommended by nearly every derm on the planet, and can even help with acne. It's basically magic. You know that first week (or two, or four) that it takes for your skin to stop freaking out over the sudden infusion of vitamin A, right? Well, good news, the retinol transition doesn't have to be miserable—not if you do it the right way.