Solution: Standard antioxidant formulas protect from oxygen free radical damage. (taylorwalkerfit.com)
Indeed, the very wavelengths that were most likely to generate oxygen free radicals were the wavelengths that do the most harm to the skin of mice. (sciencemag.org)
Just basic daily activities such as digestion, and movement such as walking or exercise is enough to produce oxygen free radicals. (ericbakker.com)