Moisturizers for Dry Skin: Moisturizers are a category of skin care products that contain varying proportions of 3 different types of active ingredients. 1) Humectants - these act to pull moisture out of the environment and put into your skin. Examples of humectants are vitamin B5, hyaluronic acid, and urea. 2) Emollients - these act to help restore the barrier function of your skin. Examples would be anything fat containing, like olive oil, or colloidal oat meal. These ca