What It Is The first step in your skincare ritual, La Prairie's Skin Caviar EssenceinLotion, a preserum essence infused with distilled Caviar Water, prepares your skin to reap the benefits of the serum and treatments to follow. Caviar Water, derived from a perfected distillation process, contains the most delicate elements of caviar. It prepares skin to absorb an infusion of caviar ingredients, while hydrating and conditioning to increase firmness and skin elasticity over time. What It Does La P