Rexona's Advanced Protection Invisible Dry Fresh 72 hour antiperspirant aerosol provides long lasting protection against sweat and odour throughout the day. With motion activated sweat protection, our products are intelligently designed to work as hard as you do. Sweat, also known as perspiration, is a normal and healthy bodily function and it starts to occur just a few months after birth. Our brain sends a signal to over 3 million glands in our body to release sweat (a clear fluid made of water, salts and proteins). As this fluid evaporates from our skin, it lowers our body temperature. Rexona entered the world of professional sports, backing some of the world s best sports men and women.Rexona's Advanced Protection Invisible Dry Fresh 72 hour antiperspirant aerosol provides long lasting protection against sweat and odour throughout the day. With motion activated sweat protection, our products are intelligently designed to work as hard as you do. Sweat, also known as perspiration, is a normal and healthy bodily function and it starts to occur just a few months after birth. Our brain sends a signal to over 3 million glands in our body to release sweat (a clear fluid made of water, salts and proteins). As this fluid evaporates from our skin, it lowers our body temperature. Rexona entered the world of professional sports, backing some of the world s best sports men and women.