This is a Vit C serum and moisturizer in one! It has a stable, oil soluble form of Vitamin C that fights free radicals, brightens skin tone and promotes collagen production. It is light, yet moisturizing and it feels like velvet on the skin. It is fortified with amino acids, Omega 3s, hyaluronic acid and green teal extract. Is is appropriate for all skin types including sensitive and rosacea.