Brand from France: Najel. Alum stone is a mineral naturally present in various parts of the world.In its untreated form, it is a transparent and odourless crystal.NAJEL offers it polished as a stick to match the shape of the underarms for rapid application.Alum stone has astringent properties that neutralise perspiration and prevent the development of the bacteria responsible for unpleasant odours, which makes it an excellent natural deodorant.Hypoallergenic and odourless, it may be used on a daily basis applied slightly damp to the skin.NAJEL alum stone lasts for about a year i.e. the equivalent of the length of use of ten traditional deodorants.Find all the benefits of alum stone in an easy-to-use stick!How to use:Moisten before use.Extremely handy to use, the stick follows the shape of your armpit for a rapid application. Suitable for all skin types.