A lip mask is an intensive treatment designed to nourish, hydrate, and repair dry or chapped lips. Typically formulated with rich emollients and humectants such as hyaluronic acid, it works to lock in moisture and restore softness. Many lip masks also include antioxidants or vitamins to protect against environmental damage and support healing. Applied as a thick layer or overnight treatment, these masks create a barrier that allows active ingredients to deeply penetrate, leaving lips smooth, supple, and ready for lipstick or gloss. Regular use can help prevent flaking and maintain a healthy, hydrated pout.