We're sorry to hear about your experience, Melissa, and understand how frustrating this can be. Please know that there’s nothing in our toothbrush components that would cause mold before use. Mold requires organic material to grow, which isn’t present in our brushes. While it’s rare, mold can develop after use if the brush is stored in a damp area or comes into contact with certain cleaning agents or soaps that can make the plastic porous. To prevent this in the future, we recommend that you rinse the brush thoroughly under running water and completely dry your brush head after each use. If you need more assistance, please give our Oral-B Team a call at 1-800-566-7252 from 9AM -- 6PM EST Monday–Friday.

Mekesha, we&#39;re incredibly sorry to hear about this. Please know that there’s nothing in our toothbrush components that would cause mold before use. Mold requires organic material to grow, which isn’t present in our brushes. While it’s rare, mold can develop after use if the brush is stored in a damp area or comes into contact with certain cleaning agents or soaps that can make the plastic porous. We know you&#39;ve tried cleaning it already, but if you aren&#39;t doing so, rinse the brush head under running water with the handle on then switch it off. Then, as you&#39;ve been doing, remove the head, clean both parts separately, and dry them before reattaching. We&#39;d like to connect about this and help. Please call us at 800-566-7252.<br />

Sylvie, we&#39;re sorry to learn you&#39;ve had a build up on your toothbrush, and hope you&#39;re feeling well today. Please know, we have many safety checks in place to ensure our products are safe when used as directed. If you&#39;re feeling unwell, we recommend you discontinue using this toothbrush. It may be helpful to know that there’s nothing in our toothbrush components that would cause mold before use. Mold requires organic material to grow, which isn’t present in our brushes. While it’s rare, mold can develop after use if the brush is stored in a damp area or comes into contact with certain cleaning agents or soaps that can make the plastic porous. To prevent this, it’s important to clean and dry your brush after each use. Rinse the brush head under running water with the handle on. Then switch it off, remove the head, clean both parts separately, and dry them before reattaching. So we can learn more and offer further help, please call us at (800) 566-7252.