No-Frizz Weightless Styling Spray eliminates frizz by blocking humidity and smoothes without weighing hair down. It also repels dirt to keep hair cleaner and frizz-free longer.Living proof® scientists discovered OFPMA, a moisture-controlling molecule that creates a weightless shield on the hair to block humidity absorption and smooth the cuticle, thereby reducing friction between hair fibers. The result is soft, smooth, frizz-free hair.