Ferroptosis-IN-8 is a potent ferroptosis inhibitor with an EC 50 of 40.49 nM. Ferroptosis-IN-8 effectively reduces lipid ROS levels in cells. Ferroptosis-IN-8 act as an antioxidant by capturing lipid radicals, leading to a reduction in the accumulation of harmful lipid peroxides and, ultimately, inhibiting ferroptosis.