All Natural Benefits of Alum Alum(Fitkari) was long used to clarify muddy water to make it potable. It envelops the impurities suspended in the water thereby clarifying the liquid. 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. Alum a naturally occurring ingredient is considered to be good for tightening the skin. It has an astringent property that causes the cells to shrink and removes excess oil from the skin. Thus Alum is used in the form of gels or creams for skin care[8]. Alum is an effective remedy for skin problems