Get overnight lip therapy with this leave-on lip mask designed to soothe, soften and replenish your lips while you sleep. The smooth, nutrient-rich formula provides long-lasting nourishment for healthy, supple lips. ADDITIONAL INFO: - Perfect for nighttime use before bed - Lasts the entire night - up to 8 hours! - Won’t leave stains on your bed or pajamas - Thickest lip care formula - Offers the most protection Sigma Beauty Conditioning Lip Mask Silken