Prevage MD is an anti-aging treatment with the key ingredient, Idebenone (Hydroxydecyl Ubiquinone), scientifically shown to be the most powerful topical antioxidant in a skin care product. The 1% strength of idebenone is available only in Prevage MD. Prevage MD is clinically proven to reduce the sign of aging in only 4 weeks. Idebenone 1% anti-aging treatment corrects the skin damage that you already have and also protects your skin from future damage. more info