Wavebuilder Brush In Waves Daily Training Lotion. Brush in Waves is a hair healthy water based “activator” that helps gently make hair more “waveable.” | Sealed in moisture makes hair easier to wave and this product is essential to top wavers all over the world. | It can be used as often as desired without buildup and is an excellent brushing aid. | Never greasy and leaves a nice lasting shine. | This high quality, safe, effective WAVEBUILDER product is made by us with only the best available ingredients.