Hydrolyzed 100% Whey Protein Isolate
A delicious, ultra-pure, fast-absorbing whey protein isolate to support muscle growth.*
9.4  out of 10  (2,300 Reviews)
5 Sizes
5 Lbs.
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12 Flavors
Fudge Brownie
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Price: $74.99  ($0.99 / Serving)
Flavor Rating: 8.8
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Product Overview

Dymatize Informed Choice. Trusted by Sport.
Clean & Pure
Muscle Building


Isolate of the year
5 years in a row
typical amounts per serving


Grams of Protein


Grams of BCAAs


Grams of Leucine


Gram of Sugar



Why ISO100?

ISO100® is simply muscle-building fuel. Each serving contains 25 grams of protein and 5.5g of BCAAs including 2.7g of L-Leucine. Known worldwide for quality, taste and purity, ISO100 is produced to our highest quality standards. ISO100 is formulated using a cross-flow micro filtration, multi-step purification process that preserves important muscle-building protein fractions while removing excess carbohydrates, fat, lactose and cholesterol. ISO100 is made with pre-hydrolyzed protein sources to ensure fast digestion and absorption.

  • 25g of Whey Protein Isolate
  • 5.5g of BCAAs proven to help build muscle and aid in recovery
  • 1g of Sugar per serving
No Artificial Colors or Flavors. Sweetened with Stevia
Cinnamon Bun
Dymatize ISO-100. Hydrolyzed. 100% Whey Protein Isolate.
Available in
12 Indulgent Flavors
Peanut Butter - New Flavor
Cinnamon Bun
Cookies and Cream
Fudge Brownie
Gourmet Chocolate
Gourmet Vanilla
Orange Dreamsicle
Smoot Banana
Dymatize. Perfecting Athletic Nutrition Get Dymatize

Ratings & Reviews

Overall Rating
2,300 Ratings
Verified Buyer Rating
1,250 Ratings
Average Flavor Rating
26 Flavors
Top Rated Flavor
Orange Ice Cream
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.
Dec 04, 2018
Verified Buyer
  • 10 Natural Vanilla

I'm extremely picky on what type of supplements I used based on how many unnecessary ingredients are in them. The ISO natural is by far one of the best tasting natural proteins I have ever used. It mixes well and does not leave a horrible after taste or smell compared to some of the other ones I have used. Most natural proteins take some getting used to as they do not have all the ingredients added to them to make them taste good however that was not the case with this. Buy it!

Dec 04, 2018
Verified Buyer
  • 5 Orange Dreamsicle

I bought 2 3lb. containers of the orange dreamcycle and it does not mix well with water. It leaves clumps no matter how long I shake it. I use 8oz of water. It also leaves a bad after taste of artificial sweater. Now I have to get another brand.

Dec 03, 2018
Verified Buyer
  • 9 Peanut Butter

My first time that I tried this product the flavor I chose was peanut Butter so far the best protein I to me is a little too sweet that’s why I rated 9 I can wait to try another flavor and I think it’s worth every penny

Nov 29, 2018
  • 10 Fudge Brownie
  • 8 Gourmet Chocolate

I have tried both the Gourmet Chocolate flavor and the Fudge Brownie. Both of them were good, but the fudge brownie was better! Seriously tastes like you are drinking brownies! Can't wait to try new flavors in the future.

Nov 26, 2018
Verified Buyer
  • 1 Peanut Butter

Hands down the best tasting protein powder on the market.

Oct 20, 2018
Verified Buyer

In over 25 years of training and seeing nutrition products come and go, this product and flavor ranks tops for me. No lactose issues. Mixes smooth and easy. No lumps. Great tastes.

Oct 16, 2018
Verified Buyer
No written review.
Oct 16, 2018
Verified Buyer

The flavor is the worst! Has an after taste!

Oct 08, 2018
Verified Buyer
  • 10 Natural Chocolate

I stopped taking protein powders for almost a year because it gave horrible digestive issues. I found out this had no lactose so I decided to give it a try and I am so glad I did. The natural chocolate tastes amazing. I have zero digestive issues and in the 6 months since I started taking it my body composition has changed. This is my protein of choice and highly recommend it to those with sensitive stomachs.

Oct 05, 2018
Verified Buyer
  • 9 Chocolate Peanut Butter


Oct 01, 2018
  • 10 Gourmet Chocolate

Awesome product. I have been experimenting with high end proteins over the last few months while turning the swell on and this one is standing out for results and taste. If you mix it right it tastes like Yoo Hoo. The colder the better, just like me...

Sep 25, 2018
Verified Buyer
  • 10 Peanut Butter

I have tried multiple flavors in the ISO100 lineup and was always pleased with the flavor, the texture, the profile, and everything else. You will pay a bit more for this, but it will be worth every dollar because it is a high quality product. My favorite taste and texture was at 2 scoops with 12oz skim milk, mixed in a NutriBullet. I highly recommend this product and this flavor.

Sep 25, 2018
Verified Buyer
  • 8 Birthday Cake
  • 10 Smooth Banana
  • 10 Chocolate Peanut Butter
  • 10 Gourmet Chocolate
  • 8 Cinnamon Bun
  • 9 Cookies and Cream
  • 10 Gourmet Vanilla
  • 10 Peanut Butter
  • 10 Fudge Brownie
  • 9 Chocolate Coconut

Dymatize Iso-100 protein is a must for me. It has given me positive results and the taste is the best on market. After years of searching for a protein, the search was over once I tried Dymatize. Great product for a great price.

Sep 17, 2018
Verified Buyer
  • 10 Chocolate Peanut Butter
  • 7 Gourmet Chocolate
  • 8 Natural Vanilla

Excellent product. Mixes easily and great selection of flavors to choose from.

Sep 13, 2018
Verified Buyer
  • 10 Chocolate Peanut Butter
  • 10 Orange Dreamsicle
  • 10 Gourmet Vanilla
  • 10 Fudge Brownie

Best flavor ever, I never get bored. And sometimes chocolate was unconfortable in my stomach, this is perfect, I have tried Gourmet Vanilla, fudge brownie, Orange dreamsicle, and Peanut butter with chocolate (feels like eating a reese´s), My first is Orange, and the rest are like 9.9, just because I really loved the orange one, but all of them, perfect!!! I want to try strawberry!

What's in Dymatize ISO100

5 Lbs. Fudge Brownie
Serving Size: 1 Scoop (32g)
Servings Per Container: About71
Amount Per Serving
Calories 120       
Calories from Fat 5       
% Daily Value *
Total Fat .5 g 1%
Saturated Fat 0 g 0%
Trans Fat 0 g       
Cholesterol 10 mg 3%
Sodium 190 mg 8%
Potassium 230 mg 7%
Total Carbohydrate 2 g 1%
Dietary Fiber (less than) 1 g 4%
Sugars (less than) 1 g       
Protein 25 g 50%
Vitamin A 0%
Vitamin C 0%
Calcium 10%
Iron 6%
* Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.
Hydrolyzed Whey Protein Isolate, Whey Protein Isolate, Cocoa Powder (processed with alkali), Natural and Artificial Flavor, Salt, Soy Lecithin, Potassium Chloride, Sucralose, Steviol Glycosides (Stevia)
Gluten Free

Directions For ISO100: Formulated for easy mixing. Add one scoop (included) to 5-6 oz (150ml-180ml) of water, milk or your favorite beverage and mix thoroughly. Enjoy prior to workouts, within 30 minutes after workouts or anytime you desire a high-quality, high-protein drink.

* 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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