Prevage MD anti-aging treatment contains 1% Idebenone, a powerful antioxidant that protects the skin cells in your body. Prevage MD protects your skin from environmental stressors known to cause skin aging including UV light, air pollution, ozone, cigarette smoke and even oxygen. These environmental stressors create damaging by-products called "free radicals" during normal cellular metabolism. Antioxidants (like Idebenone, the active ingredient in Prevage MD anti-aging treatment) scavenge these free radicals and bind to them before they cause damage. Prevage MD anti-aging treatment helps correct the skin damage that you already have and also protects your skin from future damage.