Multi-Source Protein!
Complete Balance For Maximum Gains And Absorption*
8.9 out of 10 (27 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: $27.89 ($0.93 / 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
27 Ratings
Verified Buyer Rating
7 Ratings
Average Flavor Rating
3 Flavors
Top Rated Flavor
Chocolate Peanut Butter
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.

The Promasil tasted good, like chocolate milk. I wasn't super happy with how is mixed in the shaker bottle, as you can see in the picture there were some clumps floating around. But mixed with milk it was filling and I could see drinking this for more than an after workout drink.

  • 4 Chocolate

I picked this up looking to try a new protein to mix things up a bit to keep things fresh. The ingredients are top grade and I was pleased with that. This product also has great mixability. There were no floating particles and no foam. The protein usually dissolves within 10 seconds. However, that is where it stops. The taste was terrible. To be honest, it tasted like a cheap protein. Compared to other proteins I have taken, I didn't quite feel like it was absorbing the way I needed it to. Usually after taking it, I would experience bloating or uncomfortable gas. Worse case scenario, which was quite often, I experienced intense bouts of indigestion and acid reflux. I will not be purchasing this protein again.

Verified Buyer
  • 10 Chocolate Peanut Butter

this is really the ultimate protein powder , it got everything from the fast digestive protein to the slow digestive and its almost like ISO protein powder , the percentage of protein is 83% which is very good for having lean mass muscle , and it blend so good and taste so good

  • 10 Chocolate

This is hands down my favorite protein powder to use it. I managed to pick some up when it was a BOGO sale. The first thing I noticed was the ingredient list, very limited to non-useless ingredients and no #5 this and #7 that listed. Just a great blend of 7 different fast, medium and slow protein types. 80% of the proteins I have tried have made me use the bathroom an hour after ingesting. Not with this product! My stomach feels fine taking this 3 times a day. The chocolate flavor reminds me of a Yoo-Hoo type taste which is not bad for me. I recommend this product if you want a good blend of proteins, have a sensitive stomach to most proteins or want a good tasting protein with clean ingredients. Highly recommend.

Verified Buyer
  • 8 Soft-Serve Vanilla

This tasted pretty good and I like the idea of the the multi-source protein for a longer feeding. The only problems I have is the beta-alanine being put in there. Very pointless and I'm worried it is protein spiking? Also, the cholesterol is way too high for a supplement product.

† 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 | $0.93 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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