Kaboom--and the soap scum is gone while the clean shine goes on! Just spray Kaboom Shower Guard Daily Shower Cleaner and walk away. It prevents the build-up of soap scum, water stains and calcium and lime deposits for a longer-lasting, clean shine. It also helps prevent fog on glass and mirror surfaces. It is safe to use on most shower and tub surfaces, including tile, fiberglass, acrylic, plastic, glass, mirrors and plastic or synthetic shower curtains.