Alum stone
What is it?
Alum stone is a natural active ingredient of a mineral origin containing negatively charged, large-sized molecules that act by precipitating epidermal proteins. It is a substance with a high astringent power.
What does it do for your skin?
It helps keep the skin fresh and deodorised. In addition, thanks to its antimicrobial properties, it reduces the growth of bacteria that turn sweat into odoriferous substances.
