Active Ingredients Per 1 Chew:
Methylsulfonylmethane (MSM) . . . . . .500 mg

Inactive Ingredients: brewers dried yeast, canola oil, citric acid, glycerin, mixed tocopherols, natural duck flavor, propionic acid, proprietary blend (maltodextrin, sodium alginate, calcium sulfate), rosemary extract, silicon dioxide, soy lecithin, vegetable oil, whey.

Directions For Use:
Up to 30 lbs: 1 chew daily.
31 - 60 lbs: 2 chews daily.
Over 60 lbs: 3 chews daily.
If giving more than 1 chew daily, divide between AM and PM