Thank you for sharing your feedback. We appreciate you choosing the iO for your brushing routine. Please know that we have tested our products with consumers like you to ensure you have features you love, and we'd like to learn more about your experience to see how we can improve and help with your purchase. For further assistance, call us at 1-800-566-7252, M - F, 9 am to 6 pm EST.

We're sorry to hear you didn't have the results you expected from the iO Series 2, Jamie, and want to assure you that we have many quality checks to ensure your teeth are left sparkling clean with ease. We'd like to learn more so we can help, as well as share this with our Quality Team. When you have a minute, please get in touch with us at (800) 566-7252.