Sweat-free all day long Stay sweat-free even in stressful everyday situations with Seven Days Das Antiperspirant Roll-on Big Ball: This deodorant antiperspirant proves its worth with its long-lasting, effective performance by constricting the sweat glands. As a result, underarm perspiration is reduced, and the bacteria responsible for unpleasant odors are deprived of their breeding ground. The product works best overnight, while you sleep, so you can start the morning feeling fresh. Suitable for men and women. Note: Perfume-free.