Hydrolyzed 100% Whey Protein Isolate
Delicious, Ultra-Pure, Fast-Absorbing, Easy-Digesting Isolate Protein*
9.3 out of 10  (2,273 Reviews)
4 Sizes
1.6 Lbs.
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12 Flavors
Birthday Cake
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Flavor Rating: 8.6
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Product Overview

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


Isolate of the year
4 years and counting
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
Rocky Road - Exclusive Flavor!
Smoot Banana
Dymatize. Perfecting Athletic Nutrition Get Dymatize

Ratings & Reviews

Overall Rating
2,273 Ratings
Verified Buyer Rating
1,152 Ratings
Average Flavor Rating
14 Flavors
Top Rated Flavor
Natural Vanilla
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.
  • 10 Chocolate Peanut Butter
  • 10 Cinnamon Bun

This is one heck of a rebranding! I was excited to try out the rebranded version of Iso 100 by Dymatize, even though I never got to try the older version, but it definitely did not disappoint! First, the ingredient list is great, being that there is 25grams of protein per serving, and a nice breakdown on the back of a typical amino acid profile showing you just exactly how much protein you're getting. It's also very low in calories, fat and sugar all of which are great. Next, the new rebranding of Dymatize is awesome! The blue and white go great together, and the clear information on the entire bottle is really super easy to read and understand for everyone to know everything about the product. And the sight window on the back is a cool feature to see how much protein is in the tub without having to open the top. Now to the best part, the taste! Ive honestly never tasted another Rocky Road flavor protein, but this taste is amazing! It tastes just like Rocky Road ice cream and I couldn't get enough of it! Mixability is great in both water and milk as well. Overall, this is an excellent protein product from Dymatize, that I would highly recommend! UPDATE- The cinnamon bun flavor is out of this world! It really is an amazing flavor, and one that made me crave my post wokrout shake everyday after the gym! Definitely a great addition to this excellent already lineup! UPDATE: The chocolate peanut butter flavor is excellent! One of the best protein flavors that i have ever seen. I first tried this flavor with water, and it was very good. Still a great flavor. But as soon as i tried it with milk...WOW this flavor blew me away! I honestly couldn't tell the difference between drinking this or eating Reese's peanut butter cups! It really is that good, and to go along with the flavor, the protein product is still as good as ever. What an amazing flavor! Highly recommended!

  • 10 Birthday Cake
  • 8 Smooth Banana
  • 8 Orange Dreamsicle
  • 8 Cinnamon Bun
  • 9 Strawberry
  • 10 Fudge Brownie
  • 10 Chocolate Coconut

So I have tried several flavors of the Iso-100 protein from dymatize. I have been given some flavors by their rep team and purchased others. Dymatize has taken steps to produce a better product and better flavors and it shows. They have a sweeter protein for an Isolate which is rare as most isolates I find to be bland. Their sweeter ones are Birthday Cake and Fudge Brownie which are outstanding. They mix thin but I like that in an Isolate because it's easier on the stomach and not as heavy. Plus, I can two scoop in less water versus one for a blend. If I want a thicker shake, I'll purchase a blend. The best flavor for me was Fudge Brownie, just perfected. Their fruit flavors have that same sweeter tastes but just doesn't work for me as a fruitier flavor. All in all, this is a great brand produced well backed by behemoth Post so you know they will make sure it's what it's supposed to be.

Verified Buyer

This protein is awesome, very clean and aids in recovery, I even use it to make protein bars and bake protein cakes, and can't forget my shakes💪💯

Verified Buyer
  • 1 Fudge Brownie

I ordered this and it's entirely too sweet!! YUCK!

  • 8 Smooth Banana
  • 10 Chocolate Peanut Butter
  • 10 Gourmet Chocolate
  • 10 Cinnamon Bun

Incredible product, one of the best I've ever purchased. Greatly recommended. Amazing flavors. Chocolate peanut butter is the best flavor on a whey protein I've ever tasted!

† This price is the retail price for this product found at one or more retail websites in the last 30 days. The price may not include shipping cost, tax, sale or promotional prices, or discounts such as member pricing. Prices may change. verifies this price every 30 days.

What's in Dymatize ISO100

1.6 Lbs. Birthday Cake
Serving Size: 1 Scoop (30g)
Servings Per Container: About24
Amount Per Serving
Calories 110       
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 1 g 0%
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)

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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