This is not a permanent solution or a clinical-strength antiperspirant that blocks sweat glands. Its effect comes from ingredients like zinc oxide that help absorb moisture and boric and salicylic acids that help keep the skin surface cleaner. Therefore, the feeling of drier feet and reduced odor is temporary and meant to support you through a day of typical activity.
You can generally expect the effect to last through a workday or a period of moderate activity, which is why it’s often chosen for warm weather, long hours on the move, or when wearing closed footwear. For very strenuous activity like a long run or a full day of physical labor, or if you are prone to heavy sweating, the effect may diminish faster. In such cases, carrying the small 10g tube allows for reapplication if needed. Consistent daily use as part of your foot hygiene routine helps maintain a fresher feeling over time.