Vitamin antioxidants that can improve the appearance of fine lines on the skin include vitamin E and C, as well as the retinoids, which are derivatives of vitamin A. Antioxidants are thought to be beneficial due to their ability to reduce, neutralize, and prevent the damage done to the body by free radicals. Free radicals are unstable oxygen molecules that your body produces through metabolic processes, such as food absorption, and via ingestion of toxins from dietary sources, or exposure to air pollution. Basically, during the course of daily life, you are constantly subjected to potential sources that promote free radical production. It is thought that the multiple benefits of antioxidants include their ability to reduce free radical damage by blocking the oxidative processes in cells, inhibit inflammation that leads to collagen depletion, and offer protection against sun damage and skin cancer.