Higher nature colloidal silver spray 15ml this colloidal silver contains silver which is known to haveantiseptic and antimicrobial properties made using electro controlled technology and very pure water from a 9 stage water purification process to achieve a very small particle size 00006 to 0005 microns this small particle size is important because it provides a much greater surface area for contact with bacteria and it is this which gives colloidal silver its disinfectant and antisep