Hydrolyzed 100% Whey Protein Isolate
A delicious, ultra-pure, fast-absorbing whey protein isolate to support muscle growth.*
9.4  out of 10  (2,339 Reviews)
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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
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Ratings & Reviews

Overall Rating
2,339 Ratings
Verified Buyer Rating
1,282 Ratings
Average Flavor Rating
28 Flavors
Top Rated Flavor
Dutch Chocolate
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.
May 12, 2019
Verified Buyer
  • 10 Gourmet Chocolate

i used to buy 5lb iso100 every month but they changed their formula and dumbed down their product. its no longer only protein hydroslate, they have other less clean protein mixed in. The worst part for me is that it is no longer lactose free.

May 08, 2019
Verified Buyer
  • 10 Dutch Chocolate

So I wanted to try a protein without Sucralose which is hard to find. I ordered this based on the reviews and its a very good protein! The taste is fantastic. You immediately notice the natural taste and lack of "over sweetened" after taste. I would binge on sugar after using protein with Sucralose because my body spike insulin and then realize there's no **** sugar! Try this protein if you have this type of reaction.

Apr 24, 2019
Verified Buyer
  • 10 Chocolate Peanut Butter
  • 10 Cookies and Cream
  • 8 Cinnamon Bun
  • 9 Birthday Cake

This has been my go to protein for a couple years. Unbeatable nutrition profile, fast absorbing and low carb which is perfect for post workout shake, and the best Chocolate Peanut Butter flavor around in my opinion. Totally worth the extra money.

Apr 22, 2019
Verified Buyer
  • 9 Cookies and Cream

Protein tastes great and blends well

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.

4 Sizes
3 Lbs.
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10 Flavors
Gourmet Chocolate
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Price: $49.99  ($1.11 / Serving)
Flavor Rating: 9.1

What's in Dymatize ISO100

3 Lbs. Gourmet Chocolate
Serving Size: 1 Scoop (32g)
Servings Per Container: About43
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 160 mg 7%
Potassium 220 mg 6%
Total Carbohydrate 2 g 1%
Dietary Fiber (less than) 1 g 4%
Sugars 1 g       
Protein 25 g 50%
Vitamin A 0%
Vitamin C 0%
Calcium 10%
Iron 4%
* 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), Salt, Soy Lecithin, Natural and Artificial Flavor, Potassium Chloride, Sucralose
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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