MILK MAKEUP Melatonin Overnight Lip Mask is the ultimate replenishing treatment. This overnight mask works to hydrate and calm, revealing softer, smoother, and plumper-looking lips. Formulated with melatonin and a very-berry blend, it provides antioxidant protection while you sleep. Persian silk tree extract helps to balance skin’s melatonin levels, while hyaluronic acid delivers intense hydration. Soothing lavender oil and chamomile extract also calm irritated skin.