The SkinCeuticals Phloretin CF Serum is expertly formulated to provide robust environmental protection for the skin. This advanced topical antioxidant combines pure Vitamin C (L-ascorbic acid), 2% Phloretin, and 0.5% Ferulic acid. This potent blend is designed to neutralize free radicals caused by UV radiation and pollution, thereby helping to prevent visible signs of aging such as fine lines, wrinkles, and loss of firmness. It is ideal for use in the morning as the first step in your skincare routine after cleansing and before sunscreen application, offering comprehensive daytime defense against oxidative stress.