Forget hyaluronic acid for a moment. It’s super hydrating, but it’s not the be-all and end-all of great skin. If you’re dealing with flaky patches or your face feels uncomfortably tight after cleansing, look out for urea, says Dr. Injibar. “This is a humectant, which means that it draws moisture into the skin like a magnet.” Dr. Injibar says urea is an active part of the natural moisturizing factor (NMF), a group of moisturizing elements that are found inside our skin naturally. Often, our natural reserves run low and need to be replaced using skincare. “Lotions and creams that contain urea can help hydrate the skin further and ease flaking, dryness, or itchy skin, too,” says Dr. Injibar. It’s great on elbows and knees, too.