You never know who may sneeze on you, take Colloidal Silver 3000 PPM with you to avoid unwanted infections. Natural Antibiotic Colloidal Silver 3000 – 18000 PPM High PPM means fastest Kill Rate. Gold and noble metals from the platinum metals group have been found to be not only anti-cancerous, but anti aging and are in fact the purest form of antioxidants. Atom Particle Silver Colloids and other noble metals are the key to perfect health and a well balanced immune system.