Behind every good skincare routine lies one very important step: serum. With active ingredients that lift, brighten, hydrate, and smooth, a concentrated serum targets skin problems more effectively than moisturizers and lotions. The watery, silky texture brings skin-loving ingredients right where you need them most and is easily layered with all your favorite products.
After you cleanse your skin (and before SPF or makeup in the a.m.), pat on a serum with ingredients that target your specific skin concerns. The 21 listed below are undoubtedly the best serums of all time.
This article originally appeared on Harper’s BAZAAR US.