An agent for alleviating, treating and preventing vascular failure and a vascular endothelial cell-protecting agent characterized by containing, as an effective ingredient, at least one active oxygen scavenger such as astaxanthin and tocotrienols and a food, a drink and an animal feed having an effect of alleviating, treating and preventing vascular failure and an effect of protecting vascular endothelial cells characterized by containing, as the effective ingredient, at least one active oxygen scavenger such as astaxanthin and tocotrienols.
