Multi-Source Protein!
Complete Balance For Maximum Gains And Absorption*
9.0 out of 10  (21 Reviews)
2 Sizes
2 Lbs.
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3 Flavors
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Competitor Price: $34.19
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Our Price: $29.99 ($1.00 / Serving)
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Product Overview

The Athlete's Choice

With 7 different fast, intermediate, and slow digesting sources, including whey protein isolate, micellar casein, egg albumen, and goat’s milk protein, Promasil provides complete protein coverage morning, noon, and night.

Why Promasil?

superior protein sources for sustained amino acid delivery*

protein per serving

primary protein whey isolate

pure protein - the highest percent in its class

Rivalus Promasil
The Real Scoop

Ratings & Reviews

Overall Rating
21 Ratings
Verified Buyer Rating
4 Ratings
Average Flavor Rating
3 Flavors
Top Rated Flavor
Soft-Serve Vanilla
By clicking the button above, you agree to entering the Reviews section. Products in the Store are not intended to diagnose, treat, cure, or prevent any disease.
Verified Buyer
  • 10 Soft-Serve Vanilla
  • 10 Chocolate Peanut Butter

Loooove this flavor! Makes some yummy protein waffles too

  • 10 Chocolate Peanut Butter
  • 10 Soft-Serve Vanilla
  • 10 Chocolate

Promasil is the best protein I've ever had! Great tasting and it's 7 blends of fast, medium and slow digesting proteins make it perfect for maximum results.


Awesome product! Tastes delicious with just water- can't say that about all protein powders! Clean ingredients! Rivalus is the way to go!

Verified Buyer
  • 9 Chocolate Peanut Butter
  • 10 Soft-Serve Vanilla
  • 10 Chocolate

RivalUS Promasil protein is incredible. I have been using their products for a few months and honestly I have been quite impressed. My most recent purchase was for the Chocolate Peanut Butter flavor which tastes pretty good, however, I actually prefer the Chocolate. If you buy the chocolate and mix a little bit of peanut butter it tastes absolutely incredible. The same goes for the Soft-Serve Vanilla. As far as protein goes, Promasil has probably the most natural taste and smell. As of now I use both RivalUs and Evlution Nutrition. Promasil is a must try if your in it for the taste. I wish they would increase the amount of flavors they have, but right now they have a solid foundation going. 10/10.

† This price is the retail price for this product found at one or more retail websites in the last 30 days. The price may not include shipping cost, tax, sale or promotional prices, or discounts such as member pricing. Prices may change. verifies this price every 30 days.
2 Lbs.
2 Lbs.
30 Servings | $1.00 Per Serving
5 Lbs.
5 Lbs.
75 Servings | $0.76 Per Serving

What's in RIVALUS Promasil

Serving Size 1 Scoop (30.1 g)
Servings Per Container 30
Amount Per Serving
Calories 120       
Calories from Fat 10       
% Daily Value
Total Fat 1 g 2%
Saturated Fat .5 g 3%
Trans Fat 0 g       
Cholesterol 35 mg 12%
Sodium 75 mg 3%
Total Carbohydrate 3 g 2%
Dietary Fiber 1 g 0%
Sugars 1 g       
Protein 24 g       
Vitamin A 0%
Vitamin C 0%
Calcium 10%
Iron 2%
* Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.
Whey Protein Blend (Whey Protein Isolate, Whey Protein Concentrate, Whey Protein Hydrolysate), Promasil Sustained Action Protein Blend (Milk Protein Isolate, Micellar Casein, Egg Protein, Goat Milk Protein), Cocoa Powder (Processed with Alkali), Natural and Artificial Flavors, Sucralose, Acesulfame Potassium, Beta Alanine, Stevia
CONTAINS MILK, EGG & SOY LECITHIN (Soy Lecithin used as emulsifier). Manufactured on equipment that also processes products containing peanut flavor, wheat & fish oil.

Directions For Promasil:

6oz H20 + 1 Full Scoop

Training Day: A.M. & After Workout

Off Day: Mid-Morning & Afternoon

Warnings: Consult a physician before using if you are unaware of your current health status, if you have a medical condition, or if you or your family has a medical history of cardiovascular disease, diabetes, psychological disorders, hormonal abnormalities, or if you are taking any prescription drug. Do not exceed maximum daily dosage. Do not use if safety seal is broken. Contains ingredients derived from milk. Store in a cool, dry place. KEEP OUT OF REACH OF CHILDREN.

* These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
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