If efflorescence is the dandruff of concrete then NewLook's EffLock is the Selsun Blue™ you need to prevent it! Permanently.
EffLock is a truly revolutionary efflorescence-curing system that is guaranteed* to stop both primary and secondary efflorescence in concrete and masonry. The water-based, nanofusion formula reacts with and permanently binds concrete chemical impurities at the nano-molecular level. This prevents the leaching of efflorescent salt for the life of the concrete, resulting in enhanced concrete performance.