ON Gold Standard 100% Casein is the industry’s first all-micellar casein, a nighttime use protein powder for building muscle, Made exclusively with micellar casein.

Best-Selling Micellar Casein.
Nearly 71% Protein by Weight (24 g of Protein per 34 g Serving Size).
24 grams of Slow-digesting micellar casein per serving.
Nearly 5 grams of Naturally Occurring BCAAs (Leucine, Isoleucine, and Valine) per serving.
Nearly 5 grams of Naturally Occurring Glutamic & Glutamine Acid in Every Scoop.

24 g Protein
9 g* Essential Amino Acids
1 g Sugar
Naturally & Artificially Flavored
Slow Digesting Premium Micellar Casein Protein
26 Servings
Protein Powder Drink Mix
True Strength

Made in USA
By Optimum Nutrition

Size: 909 G
Servings: 26 servings
Flavor: Chocolate Supreme