15ml Refill. This Colloidal Silver is made using electro-controlled technology and a 9-stage water purification process, to achieve a very small particle size (0.0006 to 0.005 microns), providing a much greater surface area for contact and a far more effective product. Tastes like water, safe, even on small children. The 15ml refillable size, with handy funnel, is ideal for carrying in a bag or pocket. Contents: Purified water and 99.999% pure silver. Suggested intake: Externally, spray as needed, spray into the back of the throat. FOR ANIMALS: spray externally or add to drinking water. Warning Please see the information on the Colloidal Silver page about the potential risks of taking silver preparations.