Colloidal Silver Plus Original & Pure - Concentration - 1 to 23ppm High pH 9.5 (Neutral) & Smallest Particle Size - 0.00023 microns Pharmaceutical grade deionised water & 99.99% - Pure Silver 200% Natural This can even be used for PETS CERTIFICATE OF ANALYSIS - AVAILABLE READILY AVAILABLE - IMMEDIATE DISPATCH WHOLE SALE PRICE & FACTORY PRICE