Based on current research for minerals (also known as ammonium alum since the Roman Pliny - 100p.Ch.) the Optima perfected the method of natural processing (cutting and polishing) to exploit them.
The deodorant Ice Guard Twist Up acts against bacteria on the skin surface without being absorbed and thus effectively prevents the odor without inhibiting the beneficial process for the body of perspiration as it does not block the pores. Also creates a natural protective filter enabling the skin to breathe and thus maintaining the feeling fresh all day.