An antiperspirant composition comprising an antiperspirant salt selected from an aluminum antiperspirant salt, an aluminum-zirconium antiperspirant salt, and a mixture thereof; a betaine component selected from betaine, betaine hydrochloride, and a mixture thereof; a calcium salt; and water. The system includes at least one server that transmits the continuous sequence of individual pieces of media information at approximately the same time to each user in the group. The driver elements are rotated by an external force. The ring has a semi-circular shape corresponding to the outer and inner diameters of the tubular ring. The invention further provides methods of treating such disorders by contacting cells of a patient suffering from the disorder with a therapeutically effective amount of a reagent that modulates TSLC1 level in the proliferating cells.