Moisturizers are typically made of oil and water and they help to hydrate the skin and prevent dryness. Moisturizers protect the skin’s barrier and prevent irritation and redness and over time, may help fade dark spots, fine lines and wrinkles. Moisturizers are a must in any skin care routine and is the key to healthy, radiant skin. Also, all skin types, even those with oily skin, need to use a moisturizer. Ingredients to look for in a moisturizer are glycerin, hyaluronic acid, ceramides and essential oils.