This is the most requested of our CDS offerings. Made through the generation of chlorine dioxide gas and bubbled through a stainless-steel gas infuser this product is a pure as it can get. Tested to meet or exceed 3000ppm this product is made and kept at 40 degrees Fahrenheit for strength, constancy and purity. Our bottles are tightly sealed with a high-quality poly-cone bottle cap and as Dr. Kalcker says “where is the gas going to go if the bottle cap is screwed on tight”. We do recommend refrigeration of the product and removing the cap for minimum amount of time during use.