The Oral B io series combines powerful, but gentle micro-vibrations with Oral B’s unique dentist-inspired round brush head design for a professional clean feeling every day. Radiant White Refills help whiten teeth starting from day 1* *by removing surface stains. Precisely angled bristles lift and remove plaque. Dentists recommend changing your toothbrush head every 3 months for best results.

Highlights:

• Advanced cleaning and whitening starting day 1* *whitens by removing surface stains

This refill is only compatible with the iO range.