Next to flashier ingredients like retinol and vitamin C, vitamin E is something of an unsung hero. You’ve probably spotted it in at least one of your products, given that it’s one of the most widely used ingredients in beauty (it’s typically listed as “tocopherol” on ingredients lists), but you might not know it does far more than moisturize. From powering your other actives to working its...

You might be aware that antioxidants are in some of your favorite skin care products, but maybe not what they actually are or how they work. Well, it’s worth getting familiar with this all-star class of ingredients because antioxidants can do a world of good for your skin.

According to Dr. Rhonda Klein, a board-certified dermatologist in Connecticut, “Antioxidants protect the skin by limiting free...