Hydrolyzed 100% Whey Protein Isolate
A delicious, ultra-pure, fast-absorbing whey protein isolate to support muscle growth.*
9.4  out of 10  (2,336 Reviews)

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
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Ratings & Reviews

Overall Rating
2,336 Ratings
Verified Buyer Rating
1,279 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.
Apr 19, 2019
Verified Buyer
  • 10 Chocolate Peanut Butter

I very much loved the product, mixes good, tastes good, and smells wonderful. I bought for a friend as well, and his opinion is the same as mine. Would definitely order this again...

Apr 17, 2019
Verified Buyer
  • 10 Fudge Brownie

Excellent isolated protein. Ingredients profile is very good and clean. Easy mixing. Goes very well either with milk or just water. A bit pricey, but worth it.

Apr 16, 2019
Verified Buyer
  • 10 Chocolate Peanut Butter

Mixes well. Great flavour and low in calories with BCAAs added. A winner.

Apr 13, 2019
  • 10 Gourmet Chocolate

I thought this was artificial sweetener free, but just discovered it has sucralose in it. Surcalose is a artificial sweetener found in Splenda. Sucralose destroys the gut bacteria. Had I known this ahead of time, I would have never purchased.

Apr 12, 2019
Verified Buyer
  • 7 Gourmet Chocolate

First don’t waste money buying this product here when you can go to sams club and get a 6.5lb bag for 63 bucks! Now the flavor was good mixed well but this product was much better before it was bought out by a cereal company a few years back. Still not bad but do your research on price and product.

Apr 04, 2019
Verified Buyer
  • 10 Orange Dreamsicle

Taste great. Mixes well. Easy on the stomach.

Mar 29, 2019
  • 1 Strawberry
Mar 28, 2019
Verified Buyer
  • 10 Orange Dreamsicle
Mar 25, 2019
  • 9 Chocolate Peanut Butter

Delicious. Makes getting my daily protein easy thanks to the good taste. I put mine in a blender with ice and a banana. I could drink it all day.

Mar 20, 2019
Verified Buyer
  • 10 Gourmet Chocolate
Mar 20, 2019
Verified Buyer
  • 10 Chocolate Peanut Butter

I have used quite a few brands of protein powder in the past and none taste as good as this one. Has no disgusting aftertaste, immediately dissolves in my milk, and taste is amazing. Wish it was a touch more peanut butter-y however.

Mar 19, 2019
  • 10 Chocolate Peanut Butter
  • 10 Peanut Butter

Okay the chocolate peanut butter and regular peanut butter is so dam fire!! I bought two 5lb packs for my store and at home! I can drink these flavors all day!!!! I drink them with almond milk unsweetened!!! No better tasting flavor protein in the world. I am glad I switched over from ON protein.

Mar 17, 2019
Verified Buyer
  • 10 Chocolate Coconut
  • 9 Chocolate Peanut Butter

Ok - I may be a bit lengthy but a couple of things to calibrate my perspective. I’m not a body builder. I’m a marathoner (about 90 MPw) and i do some weight lifting. I’m late 40’s and male so with my workouts and age I demand a lot of protein, I recently switch to ISO100 from ON. I found the taste good and the performance is even better. I dont get the bloating i was getting previously and I really like the flavor offering as it goes well in my homemade oat/protein pancakes and oatmeal. My only ding is that they dont offer single serving packets for travel. So far I’ve tried the Chocolate Cocounut and the Chocolate Peanut Butter. Digging them both. Gonna try straight up peanutbuuer and also try thier Casein. Quality product and I’ve been satisfied. Thanks

Mar 12, 2019
Verified Buyer
  • 10 Chocolate Peanut Butter

Favorite protein powder Ive used. Shakes up nicely by hand. Chocolate peanut butter is delicious.

Mar 07, 2019
Verified Buyer
  • 10 Fudge Brownie

One of the best protein powders I've ever used.

4 Sizes
5 Lbs.
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12 Flavors
Fudge Brownie
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Price: $74.99  ($0.99 / Serving)
Flavor Rating: 8.9

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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