- Serum-In-A-Gel Technology - preventive and corrective treatment - suitable for sensitive, combination, and normal skin. PREVENT SkinCeuticals Phloretin CF Gel 30 mlFormulated with an optimized acid combination of 2% phloretin, 10% vitamin C, and 0.5% ferulic acid, Phloretin CF Gel protects the skin from the range of reactive molecules known to cause DNA mutations and damage among the integral cell types. As supported by clinical studies, the addition of the phloretin molecule enhances the efficacy of vitamin C and ferulic acid for increased synergy while regulating pigment production. This trusted antioxidant trio also accelerates cell turnover and stimulates collagen synthesis to boost the skin’s structure for a firmer, brighter complexion. Until now, as proven by the Duke antioxidant patent, only a serum delivered vitamin C into the skin for maximum penetration and efficacy. Phloretin CF Gel defies the boundaries of gel formulations using a state-of-the-art gelifier that meets the