Sunday Riley C.e.o. Vitamin C Rich Hydration Cream

What It Is: A hydration cream that infuses 5% advanced, oxygen-stable tetrahexydecyl ascorbate (Thd ascorbate) into the skin-the gold standard form of vitamin C. What It’S For: All skin types. What It Does: Thd ascorbate is the newer, clinically-proven, oil-soluble derivative of vitamin C, which penetrates better into the skin while being exceptionally stable against oxygenation. With 5% Thd ascorbate, this moisturizer is powerful at fighting the first visible signs of aging and restoring vital