StackedSkincare Advanced Retinol Serum ($88)
If you have fine lines, dark spots, congested pores, acne or all of the above, this is the treatment to try. The skin-perfecting power comes from granactive retinoid, which converts directly into retinoic acid in the skin, allowing you to receive big benefits—clearer, smoother, younger-looking skin—without any dryness or peeling.
You can use it every day, but if you do experience any sensitivity or irritation, take it down to every three days until your skin adjusts, and then you can work your way back up.
“You’re always going to want to use this at night on clean skin, and after you exfoliate, if you do exfoliate that evening,” says brand founder and aesthetician Kerry Benjamin. “Apply two pumps—it has a creamy texture that absorbs really nicely into the skin—all over your face and neck. Then you can apply your moisturizer, and you’re finished for the evening.”