How Does Driclor Work for Excessive sweating (hyperhidrosis)? The active ingredient in Driclor is Aluminium chloride. This forms a special gel matrix inside the sweat glands. This blocks the sweat glands which in time prevents perspiration & instead, the excess sweat is absorbed naturally by the body & disposed of. Users will begin to see an improvement in their symptoms after 1-2 weeks of regular use with Driclor. How To Use Driclor Roll On First use; Apply the roll on once daily before bed. Wash off in the morning & use your regular deodorant. After 1-2 weeks, you can expect to see a significant improvement in your sweating. Once sweating stops during the day, Driclor can be used less often, once or twice weekly is usually sufficient. Apply to clean, dry skin. Do not apply to broken, irritated or freshly shaved skin.