| http://www.w3.org/ns/prov#value | - In addition, PVP has been proposed for use in oral hygiene compositions, in dentifrices as an agent to remove stain, in particular tobacco stain (GB 741 315, Colgate Palmolive-Peet Co), and in conjunction withchlorophyll, to inhibit the formation of stain associated therewith (GB 739 936, Colgate-Palmolive Co).
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