Troy Plaque Off is a dental powder for dogs that works through the digestive system rather than by direct contact. The active ingredient, Ascophyllum nodosum — a specific strain of kelp — is absorbed via the gut and reaches the saliva, where it disrupts the bacterial processes that form plaque and tartar. Supplied as a 40g powder.

A small amount is added to the dog's regular food daily. The kelp compound softens and helps remove existing tartar build-up, prevents new deposits from forming, and reduces bad breath at its source rather than masking it. Troy recommends using it alongside toothbrushing as part of a maintenance routine, though it functions as a standalone option when brushing is not practical.

Plaque Off is commonly chosen by owners whose dogs resist toothbrushing — there's no additional handling involved, just the powder mixed into the usual meal. Regular use over several weeks produces visible changes in tartar coverage on the teeth.