Patents

Oral Care Gel Stains Plaque

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By: TOM BRANNA

Editor

US Patent No. 9,775,788 B2; Colgate-Palmolive Company has been awarded a patent covering an orally acceptable plaque indicator gel that is comprised of dye in sufficient concentration to visibly stain plaque upon application.

The gel contains xanthan gum, carboxymethyl cellulose, glycerin, sorbitol and water.

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