Pro Complex Protein
Optimum Nutrition

Pro Complex Protein

Muscle Building Protein Mix!*
Tastes Great And Is Instantized To Mix Easily!
9.3  out of 10  (477 Reviews)
2 Sizes
1.65 Lb.
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1 Flavor
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Price: $30.90  ($3.09 / Serving)
Flavor Rating: 9.1

Product Overview

Whey protein isolate
primary source
  • 30 Grams of Protein per Serving
  • 7.5 Grams of Micronized BCAAs in 2:1:1 Ratio*
  • 5.25 Grams of L-Glutamine per Serving*
  • Less Than 1 Gram of Fat per Serving
  • Good Source of Calcium
  • Consistently Mixes Effortlessly & Tastes Great

*Naturally occurring and added

Optimum Nutrition Pro Complex Protein
Pro Complex Protein at a glance. What - Easy to mix protein powder. Usage Occasion - Before or after training. Training Support - If 30 grams of protein is enough for you, Use 1 scoop. Larger athletes with greater needs can use 2 scoops for 60 grams of protein.

Ratings & Reviews

Overall Rating
477 Ratings
Verified Buyer Rating
114 Ratings
Average Flavor Rating
3 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.
Verified Buyer
  • 10 Creamy Vanilla



I tried a tub each of vanilla and chocolate, both are very tasty. This is an outstanding product. High in protein (30g per scoop) high quality, great types of protein. I will buy again, but it is VERY expensive and not on sale often. Cost is about the only downside to this product.

  • 9 Vanilla

Hi guys, I just cant tell you how good this product is:- Its been 32 days and I have packed on some 4kgs ( 8.8 pounds of Lean Muscle mass). This protein coupled with Insane animal type work-outs + a clean Medically supervised diet did an amazing Job. As always i'd like to personally rate it on parameters below: 1) Effectiveness : 9.5 out of 10 ( i always leave room for improvements by ON) 2) Mixability : 9.5 out of 10 ( Just 12 vigourous shakes in a shaker cup witouth any fancy ball or net is enough to get it to a smooth texture ready for drinking. 3) Flavour : Vanilla ( 9 out of 10). Not the best tasting on the market...but 32 days and I aint fed up of of it. very Light on the throat , tongue and stomach in flavour and texture n thickness.. Chocolate flavour( 7 out of 10) is a bit weird as it tasted like Chocolate, Egg and iron mixed, can easily get fed up of it.. but hey taste is matter of personal Taste n choice. 4) Price : (6 out of 10) Well I keep hunting for offers online for this one..Its pricey but i dont mind it in return for the results it provides. 5) Dosing : I take 1 scoop within 1 hour post work out..and one scoop in morning 15 mins after waking up. Hope you liked my review... REAL SERIOUS GAINS , LEAN GAINS. MY FAVOURITE PROTEIN TILL DATE... OLD PRODUCT BUT GOLD.

Verified Buyer
  • 10 Rich Milk Chocolate

This has been my favorite protein powder for a few years now. Tastes great (without that weird artificial aftertaste), mixes very well, and has plenty of protein per serving. Was buying it on another site, so when they stopped offering it, I had to find it somewhere else.

Verified Buyer
No written review.

great gainer . taste isnt the best but tolerable. i could see a noticeable difference in one use. will continue to use for sure

  • 10 Rich Milk Chocolate

I've tried Gold Standard from this brand and it has shown results. However, after a while I had remained at the same spot and was getting no progress anymore. I came across this and decided to try it. The extra protein is exactly what I was looking for without adding too many calories. I've seen results after a week of using this and noticed a leaner physique and muscle mass. This is a good addition for people who struggle to consume their protein intake and obtain their goals. Definitely worth a try if you need the extra grams of protein!

  • 8 Creamy Vanilla
  • 10 Rich Milk Chocolate

As soon as I'm awake or after my workout, this product is a must!


It was the only protein i take that made me feel good.. But very expensive..

  • 10 Creamy Vanilla
  • 10 Vanilla

I love pro-complex, especially the vanilla. Good texture, good fixability, great taste, and the profile is very good. I use one scoop a time, mix with half milk and half water.

  • 1 Rich Milk Chocolate

I bought 3 containers of this in 3.3 LB each. My observation after finishing the first container: 1- When I opened the first container, I found it only filled to mid of the container. 2- It really taste nasty either with water or milk. I have to mix either fruit or some other BCAA products to get over the taste. I was a big fan of ON taste, but this one, especially in Chocolate flavor, is really nasty. Now either I just throw out the remaining 2 containers and lose $110 or just cope up with it. Never going to buy again.

Verified Buyer

This protein is the best. Not only does it have the added BCAA's to the high quality protein, but it also tastes great (I have only had the chocolate peanut butter flavor). I no longer have to buy my BCAA's and Glutamine separate, this is a all in one supplement.

Verified Buyer
  • 10 Rich Milk Chocolate

Pound for pound the best. I tried others but this is my go to.

Verified Buyer

Compared with 100% Whey I don't really see much of a difference.

Verified Buyer
  • 9 Rich Milk Chocolate

Best protein ever. Love the macros on it! It mixes great and tastes great!! I've only had the chocolate flavor b/c that's basically my go-to. Def curious about the chocolate peanut butter, as I'm sure it will be amazing as well... just like all Optimum products I have tried

1.65 Lb.
1.65 Lb.
10 Servings | $3.09 Per Serving
3.3 Lbs.
3.3 Lbs.
40 Servings | $1.37 Per Serving

What's in Optimum Nutrition Pro Complex Protein

1.65 Lb. Vanilla
Serving Size 2 Scoops (75g)
Servings Per Container10
Amount Per Serving
Calories 270       
Calories From Fat 10       
% Daily Value *
Total Fat 1 g 2%
Saturated Fat .5 g 3%
Trans Fat 0 g       
Cholesterol 30 mg 10%
Sodium 150 mg 6%
Total Carbohydrate 6 g 2%
Dietary Fiber 0 g 0%
Sugars 1 g       
Protein 60 g 120%
Vitamin A 0%
Vitamin C 0%
Calcium 25%
Iron 0%
* Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.
Protein Blend (Whey Protein Isolate, Hydrolyzed Whey Protein Isolate, Egg Protein, Hydrolyzed Egg Protein, Leucine Peptides [L-Leucine, Hydrolyzed Whey Protein Isolates][as PepForm®]), Natural And Artificial Flavors, Lecithin, Micronized L-Leucine, Micronized L-Glutamine, Micronized L-Isoleucine, Micronized L-Valine, Enzyme Blend (Beet Root Fiber, Amylase, Protease, Cellulase, Lactase, Lipase), Sucralose, Acesulfame Potassium.

Directions For Pro Complex Protein:

If 30 grams of high-quality protein is enough for you, mix 1 scoop into 4 to 6 fluid ounces of cold water or milk. Larger athletes with greater recovery needs can mix 2 scoops with 8-12 fluid ounces of cold water or milk for 60 grams of high-quality protein.

Because the powder is instantized, all you need is a glass and spoon, but using a shaker cup for mixing allows stacking with other powders, and an electric blender lets you add fresh/frozen fruits, peanut butter and other nutrient-dense foods.

SUGGESTED USE: For healthy adults, consume enough protein to meet your daily protein requirements with a combination of high protein foods and protein supplements throughout the day as part of a balanced diet and exercise program.

* 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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