Enhanced Plaque Elimination - ProFlex brush heads provide a 40% increase in plaque removal efficacy relative to conventional brush heads.
Improved Whitening - Whitening is improved 20% with stiffer bristles on the surface enamel while outer bristles remain gentle on gums.
Only compatible with Duo Pro and not compatible with Duo
ProFlex Brush Heads - AquaSonic's improved ProFlex Brush heads offer improved plaque removal with precisely angled bristles with alternating hard and soft areas that are gentler on gums and slightly harder on teeth