Perricone MD Vitamin C Ester CCC + Ferulic Brightening Complex 20% is a powerful, antioxidant-rich treatment designed to visibly brighten, firm, and smooth the skin. Formulated with a highly potent combination of Vitamin C Ester, three forms of Vitamin C, and ferulic acid, it helps reduce the appearance of dark spots, uneven tone, fine lines, and dullness. Lightweight yet effective, this advanced serum leaves skin looking radiant, healthy, and more youthful.