- Colloidal Silver containing Silver which is known for its antiseptic and antimicrobial properties - Contains very small particle size (0.0006 to 0.005 microns) for enhanced contact with bacteria - Ideal for use all-round the house and perfect for travel - Use the 200 ml non-spray nozzle to refill the 15ml and 100ml spray-nozzle sizes - Can be sprayed in the mouth