An aqueous skin disinfecting solution has a pH of from about 2 to about 6, and consists of at least hydrogen peroxide in a concentration of from about 0. The first constituent is at least one dielectric material selected from the group consisting of SiOx, MgF2, CaF2, Al2O3, SnO2, In2O3 and ITO, and the second constituent is at least one material selected from the group consisting of iron, cobalt, titanium, vanadium, aluminium, silver, silicon, germanium, yttrium, zinc, zirconium, tungsten and tantalum. Various alternative embodiments are also disclosed. The surface concrete mixture preferably includes small aggregates to create a smooth and uniform texture.