Hydrolyzed 100% Whey Protein Isolate
A delicious, ultra-pure, fast-absorbing whey protein isolate to support muscle growth.*
9.4  out of 10  (2,308 Reviews)
5 Sizes
5 Lbs.
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12 Flavors
Cinnamon Bun
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Price: $74.99  ($0.99 / Serving)
Flavor Rating: 8.3
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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
2,308 Ratings
Verified Buyer Rating
1,256 Ratings
Average Flavor Rating
27 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.
Jan 19, 2019
Verified Buyer
  • 9 Vanilla

Ok everybody talking about the flavor whatttt???💩💩💩💩 What about the result? In my experience help me to weight losing and gain some muscles so fast results as 3 months working out

Jan 17, 2019
Verified Buyer
  • 10 Fudge Brownie
Jan 12, 2019
Verified Buyer
  • 10 Chocolate Peanut Butter

This protein is perfect for lactose intolerant people like me. ABSOLUTELY 0 discomfort after drinking it. Also, it tastes so good. Some other protein brands taste good but leave an awful aftertaste. The Chocolate Peanut Butter from ISO100 tastes extremely good and leaves no aftertaste.

Jan 10, 2019
  • 8 Fudge Brownie

This product is amazing. Quickly dissolves and really the effects are awesome. The taste is good if it is shaked by 200ml of water not more!!!

Jan 05, 2019
Verified Buyer
  • 10 Fudge Brownie
  • 10 Chocolate Peanut Butter
  • 9 Cinnamon Bun

This is the first whey I can tolerate. I love it. I try a new flavor and I love every one of them. I am partial to chocolate which is why I gave Cinnamon Bun a 9 but it still tastes great. I wish they made a casein product as well.

Dec 31, 2018
  • 10 Cinnamon Bun

This has become my go-to protein while cutting. Great clean protein with really good macros. Tastes great with just water....even better with some unsweetened almond milk. bakes great in all of my recipes. Love the cinnamon bun flavor and eager to try new flavors.

Dec 28, 2018
Verified Buyer
  • 10 Fudge Brownie

Probably one of the best tasting protein shakes i have come across.

Dec 26, 2018
Verified Buyer
  • 10 Chocolate Peanut Butter

I am so glad I tried to mix it up. The protein I used to purchase was alright. But after speaking to one of your sales reps I tried something new. After a workout ( which I was in a rush to finish) I sipped on the protein drink. Hmmmm. I couldn't believe how good it tasted. Funny part, i'm in a rush to workout more often just to drink the ISO1000.

Dec 25, 2018
Verified Buyer
  • 10 Gourmet Chocolate

Hands down, the best protein out their!!!

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.

What's in Dymatize ISO100

5 Lbs. Cinnamon Bun
Serving Size: 1 Scoop (31g)
Servings Per Container: About73
Amount Per Serving
Calories 120       
Calories from Fat 0       
% Daily Value *
Total Fat 0 g 0%
Saturated Fat 0 g 0%
Trans Fat 0 g       
Cholesterol 10 mg 3%
Sodium 160 mg 7%
Potassium 100 mg 3%
Total Carbohydrate 2 g 1%
Dietary Fiber 0 g 0%
Sugars (less than) 1 g       
Protein 25 g 50%
Vitamin A 0%
Vitamin C 0%
Calcium 10%
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.
Hydrolyzed Whey Protein Isolate, Whey Protein Isolate, Natural and Artificial Flavor, Salt, Soy Lecithin, 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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