Phloretin CF with Ferulic Acid is a patented daytime vitamin C serum that delivers advanced protection against environmental aggressors causing dry skin and diminishes the appearance of fine lines and uneven skin tone. U.S. Patent No. 9,248,082. Phloretin CF features a patented synergistic combination of 2% phloretin, 10% pure vitamin C (l-ascorbic acid), and 0.5% ferulic acid for enhanced protection against environmental damage and the look of premature signs of aging . In addition to vitamin C protective benefits, Phloretin CF improves the appearance of fine lines and uneven skin tone.