This colloidal Silver contains Silver, which is known to have antiseptic & antimicrobial properties. Made using electro-controlled technology & very pure water from a 9-stage water purification process, to achieve a very small particle size (0.0006 to 0.005 microns). This small particle size is important because it provides a much greater surface area for contact with bacteria & it is this which gives colloidal silver its disinfectant & antiseptic properties. The 15ml refillable size, with handy funnel, is ideal for carrying in a bag or pocket. Use the 200ml non-spray-nozzle size to refill the 15ml & 100ml spray-nozzle sizes. Vegetarian & vegan friendly. • Colloidal Silver containing Silver which is known for its antiseptic & antimicrobial properties • Contains very small particle size (0.0006 to 0.005 microns) for enhanced contact with bacteria • ideal to be used all-round the house & perfect for travel • Use the 200 ml non-spray nozzle to refill the 15 ml & 100 ml spray-nozzle sizes