What it is: A luxe sleep mask remastered with the newest incarnation of caviar that delivers an exquisite moment of indulgence, melting instantly into skin.What it does: La Prairie's breakthrough caviar science has enhanced natural caviar extract with bioengineered forms of the ingredient's most potent components for enhanced firmness and elasticity. Enriched with the brand's exclusive Cellular Complex, this richly textured treatment works while you sleep, which is the most restorative moment for skin. Awaken with smoother, firmer-looking, glowing skin. It includes a spa-inspired brush for smooth application. How to use: Apply onto skin at night before bed. 1.7 oz. Made in Switzerland