We're disappointed to hear you aren't enjoying your iO5. We always want these brushes to give your smile a great clean, which we stand behind with our 60 Money Back Guarantee. If you ever questions or would like to learn more about this guarantee, give us a call at (800) 566-7252.

We're glad you're enjoying the features of the iO 5, Ed. We do offer two versions of our brush heads; iO and non-iO. This toothbrush is only compatible with our iO brush heads. If you have any questions or would like to share more about your experience, please give us a call at (800) 566-7252.

Doug & Becky, we're sorry to hear you're unhappy with the size of the brush heads. We carry out extensive research and consumer testing when designing our products. While the iO 5 has a two-minute timer, it won't shut off after two minutes of brushing; the toothbrush will stutter the vibrations every 30 seconds and pulse them after two minutes of brushing. If you'd like to share more or have any questions for us, please give us a call at (800) 566-7252.

We're sorry to hear this, Stephen. Our products go through many quality checks to ensure they reach you in perfect condition, allowing you to get the ultimate teeth-cleaning experience. Counterfeiting is illegal, and we're fully committed to protecting consumers from counterfeit products by working closely with legitimate retailers to ensure only genuine products can be purchased by our consumers. We’re developing new technologies to make it more difficult to counterfeit P&G products. Private investigations are being used to identify offenders, and they’re being prosecuted to the fullest extent of the law. P&G also proactively works with businesses, trade associations, and government groups on anti-counterfeit programs globally. Our consumers can be our "eyes and ears" to counterfeit products. So we can learn more and help identify if the toothbrush is genuine, please give us a call at 1-800-566-7252, 9 am-6 pm EST, Monday-Friday.