PeptoPro® Hydrolyzed Caseinate undergoes a proprietary enzymatic treatment to break long-chain protein peptides down through hydrolysis for ease of digestion. The resulting powder dissolves instantly in liquid and supports muscle-building in post-workout nutrition. Note that PeptoPro ® is extremely bitter and would go best with strong, sweet, and citrusy flavor types. PeptoPro ® is a trademark of DSM. Gluten-Free, Soy-Free Mixes well 3rd Party lab tested Ingredients: PeptoPro Hydrolyzed Caseinate (Milk).