Abstract: The invention relates to a novel combined disinfection and decontamination agent comprising at least one vitamin, at least one metal ion, at least one active-surface compound, and at least one further antimicrobial active substance. The agent according to the invention surprisingly shows nearly complete nucleic acid disintegration in addition to an improved disinfectant effect. The agent can be successfully used as a combined decontamination and disinfection agent for skin, mucous membranes, hands, wounds, and/or hair, and instruments and surfaces of all kinds.