Crest controversies
Controversies tied to this brand in public sources. A listing is not a finding of fault.
Crest Pro-Health mouthwash tooth-staining controversy
Consumers reported tooth staining associated with Crest Pro-Health mouthwash, whose cetylpyridinium chloride ingredient was identified as a possible cause in a small percentage of users. A related federal class-action lawsuit was later dismissed. The product subsequently carried a warning about possible staining.