What it is: A leave-on lip mask clinically proven to help recover and repair the look of extra-dry lips overnight.What it does: This dermatologist-tested mask soothes and smoothes dry patches while you sleep (or whenever you need extra care), helping your lips visibly bounce back from daily damage. Infused with berry wax, shea butter and hyaluronic acid, it blankets lips with intense nourishment-delivering naturally plump-looking lips while enhancing the look of any lip product.Research results:In a clinical assessment on 30 subjects for four weeks:- It was clinically proven to reduce the look of fine lines around the lips by 26%- It was clinically proven to improve the look of dry lips overnightIn a clinical assessment on 20 subjects immediately after application:- It was clinically proven to instantly smooth lips by 65%- It was clinically proven to instantly plump the look of lips by 41%How to use: Apply a generous layer to clean lips before bed, or whenever they need rich nourishment and recovery. It can be used daily. 0.35 oz. Paraben-free; sulfate-free; phthalate-free Made in France