We’re sorry to hear you’ve noticed a residue building up on your toothbrush. We have many quality checks in place to ensure only the best products reach you. Please know we understand this is unsightly but it is likely a buildup from regular use. Even if rinsed after each use, residual toothpaste can harden over time and form a residue on your toothbrush and the replacement head. This buildup may be colored depending on your toothpaste and water hardness. In either case, this substance is not harmful and can be removed with a thorough cleaning. So that we can help you further, please give us a call at (800) 566-7252.

We're sorry to hear about your most recent experience with your purchase. Our brushes go through many tests so that they work the best for you. Please give us a call at (800) 566-7252 so that we can help check on the status of your repair.

That doesn’t sound like the quality we expect from the Oral-B iO, and we’d like to learn more about what happened so we can help. Please know all of our rechargeable electric toothbrushes come with a two-year warranty, so give us a call at (800) 566-7252 and we’d be happy to assist.