Perspiration acts both as a thermal regulator and as an eliminator of toxins, it is imperative not to disturb this mechanism. While classic antiperspirants slow down the evacuation of perspiration, the 24H Deodorant Spray No Compromise Deodorant does not modify the natural process of our perspiration. Its anti-humidity secret: perlite. A mineral of volcanic origin, it acts as a moisturising sponge. Without blocking the skin's natural breathing, it keeps the underarms perfectly dry and soft all day long.