We're glad you reached out about this and hope it helps to know that this tooth discoloration is actually a sign your mouthwash is working, and that the discoloration is reversible and preventable. Crest Pro-Health products contain active ingredients that are recognized as safe and effective, and are optimized to fight plaque and gingivitis. After they kill the germs in your mouth, the germs may collect on the tooth surface and create the appearance of a brown stain. To help aid in the removal of tooth surface stain, we recommend a tartar-control/whitening toothpaste, a power toothbrush, floss, and regular dental visits. When you have a minute, please reach out to us at (800) 285-9139 and let us know if any of the tips have helped

We're here to help ease your mind, Pam! Like all mouthwash products that effectively fight plaque and gingivitis, Crest Pro-Health Rinses contain an active ingredient that is recognized as safe and effective. Tooth discoloration is actually a sign that our mouthwash is working. After it kills the germs in your mouth, the dead germs can collect on the tooth surface and create the appearance of a stain. This type of discoloration is reversible and preventable, and we'd be more than happy to help you purchase a Crest regimen that will help your daughter smile with confidence again. Whenever you can, could you please give us a call at (800) 285-9139?

We can understand the concern with experiencing staining while using our Crest Pro-Health Multi-Protection Mouth Rinse, and Crest Pro-Health Toothpaste. We would like to reassure you that all of the ingredients in our products are held to the highest standards to ensure effectiveness and safety. Sometimes, when using antigingivitis and plaque mouthwash or toothpaste with stannous fluoride, consumers can experience some slight surface-level brown staining, but this is actually a sign that the rinse or paste is working to kill off bacteria in your mouth. We recommend a power toothbrush, floss, and regular dental visits to help prevent this from happening in the future. We would really love a chance to learn more so we are able to better assist you. We do ask that you hold on to the product for up to two weeks in case our Quality and Safety Teams would like to collect the product, and we invite you to give our team a call at (800) 285-9139.

Sri, we're so sorry to learn you've experienced swelling and throat pain, and hope your symptoms have improved. Please know, safety is our top priority, and we have many safety checks in place to ensure our products are safe when used as directed. Flavor oils, surfactants/foaming agents, tartar control agents, and abrasives all have some potential to cause irritation. While all of our products are safe and effective, some people may not tolerate a particular formulation. If irritation persists or becomes uncomfortable, please discontinue use and consult with your dentist. So we can learn more and help further, please call us at (800) 285-9139.