PROTECTS AGAINST PERSPIRATION AND ODOR FOR DAYS For a dry feeling under the armpits: The PURAX antiperspirant Roll On was developed especially for people who are very prone to sweating. In the armpit, it seals the sweat glands on the surface. The ingredient aloe vera cares for the skin. The application is done once or twice a week before bedtime. As a result, a weekly application is usually sufficient. The PURAX Antiperspirant Roll On is used sparingly, it is enough to brush over the armpit two to three times. A PURAX antiperspirant roll on lasts six to twelve months, depending on the frequency of use.