Multi-Source Protein!
Complete Balance For Maximum Gains And Absorption*
9.6  out of 10  (29 Reviews)
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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
29 Ratings
Verified Buyer Rating
8 Ratings
Average Flavor Rating
6 Flavors
Top Rated Flavor
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.
Aug 16, 2019
Verified Buyer
  • 10 Chocolate

Absolutely the best tasting chocolate protein I've tried!

Aug 30, 2018
  • 10 Soft-Serve Vanilla
  • 10 Chocolate

I received a few items from Rivalus today. I tried out the powder burn 2.0 first. It got me going and helped pump out a few Extra reps. I was alert and didn't feel too amped out. The watermelon tasted great. Post workout I drank the chocolate clean gainer. I mixed it with a glass of milk and it mixed well and tasted awesome. Plus it has all the right ingredients for healthy mass gain. I will definitely keep Rivalus as a go to supplement brand!

Jul 19, 2018
Verified Buyer
  • 10 Soft-Serve Vanilla
  • 6 Chocolate Peanut Butter
  • 10 Chocolate

I have used protein powders as meal replacements since 2011. Started w/Isopure then went to Wheybolic and finally going this one. Better taste, more easily and quickly digested and tons more energy here! Highly recommend this product!!

May 26, 2018
  • 9 Chocolate

I've bought this brand even on their site which by the way They Have worst Customer Service as I've contacted them 6 x's through their site & email & no answer as half my order did still missing. Don't buy directly from them. Either way they just lost a customer for being **** Stupid!!!!!

May 24, 2018
Verified Buyer
  • 10 Chocolate Peanut Butter
Nov 26, 2017

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.

Sep 08, 2017
  • 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.

Jul 28, 2017
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

Jun 15, 2017
  • 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.

May 22, 2017
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.

May 02, 2017
Verified Buyer

Has a great taste and mixes well. Def great for a meal replacement to add that protein where you can't during the day. Will definitely be purchasing again.

Jan 23, 2017
Verified Buyer
  • 10 Soft-Serve Vanilla
Jan 19, 2017
  • 10 Chocolate Peanut Butter

Loooove this flavor! Makes some yummy protein waffles too

Jan 18, 2017
  • 10 Chocolate
  • 10 Chocolate Peanut Butter
  • 10 Soft-Serve Vanilla

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.

Jan 18, 2017

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

2 Sizes
2 Lbs.
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3 Flavors
Chocolate Peanut Butter
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Price: $33.99  ($1.13 / Serving)
Flavor Rating: 8.8
Complete Balance For Maximum Gains And Absorption*

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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