Hydrolyzed 100% Whey Protein Isolate
A delicious, ultra-pure, fast-absorbing whey protein isolate to support muscle growth.*
9.3 out of 10 (2,387 Reviews)
5 Sizes
3 Lbs.
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11 Flavors
Birthday Cake
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Price: $49.99 ($1.11 / Serving)
Flavor Rating: 8.6
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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
Rocky Road - Exclusive Flavor!
Smoot Banana
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Ratings & Reviews

Overall Rating
2,387 Ratings
Verified Buyer Rating
1,222 Ratings
Average Flavor Rating
16 Flavors
Top Rated Flavor
Chocolate Peanut Butter
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.
Verified Buyer
  • 10 Chocolate Peanut Butter

This protein tastes absolutely amazing. I had been trying so many things like the Jym stuff, the GNC protein blends, and switching back to whey isolate has never been better. It tastes SO GOOD!!! If I want a blend that bad, I'll just buy some Casein separate. This protein tastes too good to abandon for anything else. Only thing close in taste is Syntha-6.

Verified Buyer
  • 5 Natural Vanilla

I do not know how Dymatize can get "natural" vanilla so wrong on their ISO 100 Whey product. Their Elite Casein smoothe vanilla is spot on. How could a company make those two products and not detect the magnitude of difference in taste? The "natural" vanilla taste in their ISO 100 Whey is bitter and leaves a horrible aftertaste. The product also clumps which is surprising given they beautifully fixed that problem with their Casein years ago. I use these products daily and love their Casein and endure their Whey ISO 100.

Verified Buyer
  • 9 Gourmet Chocolate
  • 10 Strawberry
  • 8 Fudge Brownie
  • 10 Chocolate Coconut

Seeking for top of the line isolate then you for iso 100 taste is 👍👍 so calm on the stomach lactose free pop here's our product

Verified Buyer
  • 9 Chocolate Peanut Butter
  • 10 Fudge Brownie

I'm weird and will only drink cholocatey protein shakes... it just seems right and these two are my go-to flavors. I usually use skim milk, but I've also used almond milk and 2% and it's just fine. I love the flavor of the chocolate peanut butter BUT sometimes it doesn't mix as well and I end up with little clumps. The fudge brownie blends so well and tastes just like brownie batter. It also blends really well in my peanut butter and banana smoothies. My only complaint about this protein is how much it foams up in a blender bottle, but I just sit it in the fridge for a minute or two and I'm good to go so not enough to alter my rating of the product.

Verified Buyer
  • 10 Chocolate Peanut Butter

I always struggled drinking protein shakes due to their lousy taste but this is the complete opposite. I ordered the chocolate peanut butter flavor andI love it. I'd rate it 10/10. This tastes delicious and is a very good protein. I will buy again.

  • 3 Fudge Brownie

Too sweet if you add 6 or even 8 oz

Verified Buyer
  • 5 Gourmet Chocolate

My body did not react well to this protein. It was too sweet and upset my stomach. If you like really sweet protein, then you'll like this product. If you don't though, I wouldn't recommend this protein.

Verified Buyer
  • 7 Strawberry

This protein was okay. However I don’t like the fact that it’s so foamy!

  • 2 Cinnamon Bun
  • 10 Fudge Brownie

Fudge Brownie taste amazin cinnamon bun is good but its way too sweet for my liking.

Verified Buyer
  • 8 Chocolate Peanut Butter

Great quality protein. The chocolate peanut butter is very tasty but has a slight after taste. Best when mixed with 5-6 oz water or milk. If you use 8 oz or more you will be disappointed.

Verified Buyer
  • 10 Gourmet Vanilla
Verified Buyer
  • 10 Natural Chocolate

Just received my ISO100 Natural Chocolate. This is my first purchase of this brand. I have to say this stuff tastes awesome. If you ever want a Chocolate overload mix it with Chocolate Almond Milk. I purchased this to get away from "acesulfame potassium". This is sweetened with Stevia instead. I cant wait until they launch other flavors using only Stevia.

Verified Buyer
  • 10 Cookies and Cream
  • 5 Gourmet Vanilla
  • 10 Fudge Brownie

Gourmet Vanilla flavor foams considerably in the shaker taste wasn't so great either, did not have this problem with the other two flavors.

Verified Buyer
  • 3 Gourmet Chocolate
  • 9 Fudge Brownie
  • 10 Fudge Brownie

What's in Dymatize ISO100

3 Lbs. Birthday Cake
Serving Size: 1 Scoop (30g)
Servings Per Container: About45
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)
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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