This formula combines very high concentrations of two of the most powerful and important antioxidants in skincare, Resveratrol and Ferulic Acid. Resveratrol is a natural phenol found in several plants. Ferulic acid is a high-potency phytochemical antioxidant found naturally in walls of plant cells. This treatment is highly concentrated. Do not use on irritated or sensitive or dry skin. It can be diluted with most oils per application to reduce strength.