Peanut Butter and collagen? Dogs will receive the benefits of collagen while chewing on the rich, savory Peanut Butter flavor of the bully stick filling. The engaging dual texture is long-lasting and provides many health benefits, too! Best for medium chewers.  
Odor-free & highly digestible 
All-natural beef skin – 95% collagen
From grass-fed, free-range cattle in Brazil
 
Ingredients: Beef skin, tapioca starch, wheat starch, beef, coconut glycerin, peanut butter flavor, vinegar.