The Potassium Alum Mineral Deodorant from Corpore Sano, is natural, durable (can last up to a year) and does not stain. The healing and bactericidal properties of crystallised aluminium potassium sulphate, which also effectively combats bad odours in the armpits and feet, have been exploited for centuries. On the one hand, its astringent action reduces skin perspiration and on the other, its acidic nature acts by inhibiting the formation of the microorganisms present on the skin that cause bad odours due to the bacterial decomposition of sweat. Product made with 100% natural ingredients. It has been dermatologically tested. Indicated for people seeking for a product free of aluminium hydrochloride, perfume, alcohol and parabens. Our mineral deodorants are poorly soluble in water and have an astringent action on the skin.