Sunday Riley C.E.O. C+E Anti-oxidant Protect + Repair Moisturizer

C.E.O. C + E Protect and Repair Moisturizer infuses five percent advanced, oxygen-stable tetrahexydecyl ascorbate (THD ascorbate) into the skin—the gold standard form of vitamin C. 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 percent THD ascorbate, this moisturizer is powerful at fighting the first visible signs of aging and restoring vital skin radiance, while being uniquely suitable for those with sensitive skin, as THD ascorbate is significantly less irritating than other forms of vitamin C. Once in the skin, it helps boost youthful-looking skin texture and volume, in addition to providing photostable, antioxidant support.