Colored siliceous dentifrice stabilized by benzoic acid or...

A - Human Necessities – 61 – K

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A61K 8/21 (2006.01) A61K 8/24 (2006.01) A61K 8/25 (2006.01) A61K 8/26 (2006.01) A61K 8/368 (2006.01) A61K 8/55 (2006.01) A61Q 11/00 (2006.01)

Patent

CA 1123339

ABSTRACT Dentifrice comprising a dentifrice vehicle contain- ing a siliceous polishing agent, an alkali metal fluoride or monofluorophosphate and a water-soluble non-toxic red or yellow monoazo dye or blue triarylmethane dye and an additive to prevent or reduce color fading which is benzoic acid and/or phytic acid when alkali metal monofluorophosphate is present and is benzoic acid when alkali metal fluoride is present.

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