Zoom icon Click to expand Tap to zoom Chevron down icon Chevron down icon Natures G/Secret 20 ppm Colloidal Silver Spray by Natures Greatest Secret Save Liquid error (product-badge line 32): -Infinity% £12.95 | / SKU 1 2 3 4 5 6 7 8 9 10+ Quantity Chevron down icon Quantity Add to cart Spinner icon A crystal clear, high quality solution which is 95% ionic and 5% colloidal with a high pH of 9.0. Handy pump spray option.