Idebenone (CV-2619) is a synthetic derivative of CoQ10 that appears to retain the antioxidative and bioenergetic effects of its parent compound and has therefore been used in anti-aging on the basis of free-radical theory. Research indicates that Idebenone has positive nootropic and cognitive enhancement effects, has also been shown to improve learning and memory. Idebenone (particularly its reduced form) is highly antioxidative, with IC50 values against oxidative damage in the range of 0.5-10µM. Idebenone seems to have antioxidant activity, and appears to protect a wide variety of cells from oxidative damage.