the invention concerns a decontaminating composition having simultaneously bactericidal , fungicidal and virocidal properties , comprising as active components eugenol , eugenol acetate , vanillin and carvacrol , characterized in that said active constituents are present in the following percentages by weight : at least about 12 % eugenol , at least about 3 % eugenol acetate , at least about 0 . 1 % vanillin and at least about 0 . 5 % carvacrol . said decontaminating composition can be used as liquid or solid soaps . it can also impregnate in liquid form fabrics and nonwoven fabrics such as garments for medical use , bed sheets , slip covers , surgery drape , dressings and gauze such as those applied to the skin of serious burn victims .