MAKE YOUR OWN COLLOIDAL SILVER!! . Generally speaking our focus is on the form of colloidal silver that is most accurately described as "mineral water", meaning silver particles that are self suspended in water in a colloidal like state, with no other additives. There are many manufacturers of Colloidal Silver Makers. Our devices have been tested to ensure proper particle size. Our Generator makes colloidal silver without using salt or other electrolytes which compromise quality and safety. Our units are the easiest to use and last for years