Promasil Casein Protein by RivalUS

Promasil Casein Protein by RivalUS SALE
Promasil Casein Protein by RivalUS SALE
Promasil Casein Protein by RivalUS SALE


$ 14.99 $ 29.99

Sorry, this item is out of stock

RivalUS Promasil Casein Protein Product Review and Description


The Chocolate Flavor is heavily discounted because the product sell-by-date is (10/20).


Promasil Casein Protein by RivalUs is as it’s named, 24g of Native Micellar Casein protein in each serving. Casein protein is a different from whey protein in that it is slower digesting. Promasil Casein is derived from milk and can provide up to eight (8) hours of continuous amino acid delivery to help feed and repair sore muscles.  If you’ve ever dreamed of a way to grow your muscle while you sleep, RivalUS Promasil Casein Protein is how it is done!


Key Features and Benefits of Promasil Casein:

  • 24g of Native Micellar Casein Protein per Serving
  • Slow Digesting Protein, Providing up to 8 Hours of Amino Acid Delivery
  • Zero Sugar and 0.5g of Fat Per Serving
  • Mixes Quickly and Easily
  • 0 Banned Substances – Safe for Sport


Directions: Mix 1 scoop with 10-12oz of milk or your favorite beverage before bed to help feed, repair and grow muscle while you sleep. Also works to constantly feed muscles in between meals.


Allergy Information: Contains Milk and Soy ingredients


Learn even more about Promasil Casein and the RIVALUS brand in our review, here.



WARNING: Consuming this product can expose you to chemicals including lead and cadmium which are known to the State of California to cause cancer, birth defects or other reproductive harm.  For more information go to:



- Joshua Myers, Founder of Just Max Fitness Nutrition

Our brands