Out of 10
Read 14 Reviews


Multi-Source Protein!
Complete Balance For Maximum Gains And Absorption*
Supported Goal: Build Muscle
Main Ingredient: Whey Protein Blends
9.1 out of 10  (14 Reviews)
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  • 75 Servings
  • $0.80 / Serving
  • In Stock
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For a limited time, buy 1 RIVALUS Promasil, 5 Lbs. in the flavor of your choice & get 1 RIVALUS Rivalmen, 75 Tablets FREE!
Ingredient Label

What's in RIVALUS Promasil

Serving Size 1 Scoop (30.1 g)
Servings Per Container 75
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.
Learn more about Whey Protein Blends.
Check out other Build Muscle Products.

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

Out of 10
Promasil Reviews
14 Total Ratings
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    9.0 | 1 Ratings
    9.1 | 3 Flavors
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Out of 10

This was the second protein I bought & I was only 16 at the time, payed 65 at GNC and it left me broken but overall its a pretty good protein especially for when its time to get cut. only 100 cal. per serving & 7 different proteins which also helps alot, totally recommended at the price bodybuilding.com sells it for.

Out of 10

a little expensive per gram of protein, but you're not paying for fillers and other garbage, it's very clean...it mixes a little thin with 8 oz of water, but i don't mind that, the strawberry flavor is pretty solid, not too sweet, and pretty natural tasting...it's one of those products that is hard to compare apples to apples (syntha-6 and fusion 7 have different proteins and fillers), if i were to rank it on overall value comparing it to others, it be an 8 because of the price per gram of protein, but the fact that it doesn't have any fillers or soy bumps it back up to 9 for me, it's definitely worth trying IMO

Out of 10

No written review.

Out of 10

Overall this is a solid protein powder. It mixes well in both water and milk with a good consistency and flavour. Based on the existing competition I wouldn't say this is the best tasting product and is a tad expensive for the profile that you receive. I'd recommend giving this a try if you're looking for a new product and can't imagine that you'd be let down.

Out of 10

Started: Aug 15, 2013 Reason: I got a deal on one Vanilla and one Chocolate on this back in August before flying out here to Afghanistan. The guy at the GNC on base in 29 Palms pushed it on me and I couldn't resist the price, $30 for two at the time)... I'm not a big fan of protein supplementation anymore but, I still use it if I'm deployed or on ship to make up for the lack of clean proteins in the chow lines... Right now only two scoops post workout but, I'm considering one scoop for breakfast. Chalky with water (no surprise there...) but, awesome with milk! The taste with milk or Soy about the same as Muscle Milk... And I love Muscle Milk! If I could find the same price deal again, I'd keep using this...

2 Lbs.$29.99
30 Servings | $1.00 Per Serving
Flavor Taste Availability
Chocolate -- In Stock
Chocolate Peanut Butter -- In Stock
Soft-Serve Vanilla -- In Stock
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5 Lbs.$59.99
75 Servings | $0.80 Per Serving
Flavor Taste Availability
Chocolate -- In Stock
Chocolate Peanut Butter -- In Stock
Soft-Serve Vanilla -- In Stock