Did you know, sweat trapped in your underarms feeds bacteria to cause 90% of body odour?* To stop body odour at its source, you need Rexona the Worlds No. 1 Deodorant! Rexona Underarm Roll-On acts on underarm sweat where bacteria thrive, to keep you smelling clean and protected from odour all day! It has SWEATGUARD technology which prevents odour from sweat + bacteria.