Pet dental plaque remover (New Hinksey OX1)

It's a granular additive to food - but my cats refused to eat their food if it was on it! It comes with a scoop, I've used maybe three or four scoops, other than that it's intact. If you want to try it, or if your pet already uses it, feel free to take it off my hands! It just seems a waste to throw it away.