Phase Zero of La Prairie Skin Caviar Essence-In-Lotion skin care delivers the first infusion of caviar into the skin. It paves the way for the serum and moisturizer so that they can work even deeper in the skin. Extinguishes and firms, hydrates and tightens pores. It contains caviar extract, which was obtained using a unique steam distillation technology. The result is a unique caviar water that contains the finest caviar ingredients.