Protecting yourself in the sun is important and helps to keep your skin healthy. Riemann P20 Spray not only protects in the sun (including if you swim frequently, as it’s highly water-resistant), but it’s also fast-acting and is active 15 minutes after application. The lotion also has a quick-drying, non-greasy formula that leaves no white marks and only needs one application per day. The spray nozzle also makes application even easier and more convenient.