Alum Stone, a potassium-rich mineral extracted from rock, has the distinction of having a leaf-like appearance. Alum was long used to clarify muddy water to make it potable. It envelops the impurities suspended in the water, thereby clarifying the liquid. Potassium alum has antimicrobial properties (which is a big part of why they work), and it has been used since antiquity. As an aftershave, it tones and firms the skin and it also stops any bleeding from nicks or cuts. The Alum Stone is widely used in medicine because it is a good astringent and antiseptic. Today, the Alum Stone is mainly present in cosmetics. Very popular among, it is natural and has many virtues.
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