Arappu (Usilam) is a powder made from the leaves of arappu tree. It reduces heat of the body and softens the hair. It is an old method of washing hair and very good for your hair growth. Mixing shikakai powder will give more shining to your hair. Arappu ((Usilam)) powder could soothe the scalp letting the cells to grow around the hair follicles producing a new shoot of hair.