Dr. Mist Deodorant Spray - Fragrance Free - Utilizes just pure water, concentrated salt and minerals like those found in the Dead Sea. This formulation uses the principle of Physics that resulted in a fluid spray that evaporates.0.4 times faster than ordinary water. Once the fluid evaporates it leaves a thin layer or residue of very fine powder - a combination of salt and minerals on the skin. The fine powdery residue covers the epidermis and act as an effective bactericidal shield that effectively kills-off any bacteria living on or come into contact with the skin. The rationale is that without the presence of bacteria reacting on the sweat, there is therefore no unpleasant odour.