Get Soft And Moisturized Lips With The Cosrx Lip Sleep Ceramide Lip Butter Sleeping Mask. This Lip Mask Works While You Sleep To Hydrate And Renew Your Lips. It Contains A Formula Rich In Ceramides And Keratin That Help Repair And Strengthen The Lips. It Can Be Used As Part Of Your Lip Care Routine Before Bedtime. Wake Up To Soft And Supple Lips Thanks To This Mask.