Oxidative stress is a major cause of auditory hair cell degeneration and hearing impairment.Reducing intracellular reactive oxygen species (ROS) levels may help preserve auditory hair cell function. In this study, we explored the otoprotective properties of mangiferin, a xanthonoid extracted from mango leaves, bark, and fruit peels. Our findings indicate that mangiferin protects HEI-OC1 cells against oxidative stress induced by H