Dermatologist Dr. Muneeb Shah’s Top Skin-Care Products (and a Peek at His Brand)

Experiment Beauty Avant Guard Reusable Sheet Mask ($19)

Dr. Shah isn't a fan of the wasteful nature of single-use sheet masks and recommends this reusable one. "Apply your serums — put more serum than you normally would — then put this mask on your face and tuck it behind your ears, and then you just leave it on and relax for 15 minutes," he says. You can use this reusable mask right after you put your serums and actives on, and before your moisturizer, or as the last step in your skin-care routine. "It will help with the penetration of the ingredients into the skin and create that same mask-like effect."