SpaGuard’s Spa Anti Foam gives spa owners an effective way to eliminate foam build-up caused by excessive amounts of body oils, soap, shampoo, deodorant, and other hygiene products left by bathers in spa water. Spa Anti Foam’s powerful formula instantly removes foam with just one squirt of the bottle, yet won’t disrupt your hot tub’s delicate pH level, making its use worry-free. This product is safe for use with chlorine and bromine-based sanitation systems.