This spray is a natural deodorant composed mainly of potassium alum commonly called "potassium alum stone". Our Pierre d'Alum spray is a hypoallergenic, 100% natural deodorant, composed entirely of potassium alum from the alumni of Panama. Simply spray the solution on the skin and then let it dry. Compared to conventional deodorants sold on the market, Pierre d'Alum Spray is natural, fragrance-free, dye-free, aluminum hydroxide-free, does not clog pores, does not stick, does not leave white marks and dries quickly by destroying the bacteria responsible for bad odors immediately. After application, your skin is soft, dry and odorless. Alum Stone Spray is a very effective product that offers optimal protection for 24 hours.