SolRX is not just another sunscreen! Water and sweat removes the average water resistant sunscreen after 40 minutes of activity. SolRX’s water and sweat resistance last 4 hours – in and out of the water – using our advanced formula Waterblock system™, protecting you from the damaging effects of the sun.Our products have been extensively field tested and specially formulated for high performance protection with our research and development team being athletes at the cutting edge of their sports.