Studies show that one can get protection for up to four hours, but our results also show that even after a full day (eight hours), there are fewer bacteria on the hands than when the day started. The protection depends on how quickly the invisible protection wears off. Other products such as hand sanitisers, work by poisoning bacteria through a single active substance and they stop being active once they have dried out. Biopocket is an advanced formulation that affects both bacteria in a chemical and physical way. That way the Biopocket spray continues protecting even when it becomes dry.