Hydrolyzed 100% Whey Protein Isolate
A delicious, ultra-pure, fast-absorbing whey protein isolate to support muscle growth.*
9.3  out of 10  (2,377 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
Dymatize. Perfecting Athletic Nutrition Get Dymatize

Ratings & Reviews

Overall Rating
2,377 Ratings
Verified Buyer Rating
1,311 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.
Jan 15, 2020

I've been using Dymatize ISO100 for around 3 years straight now. Recently, when they released their "Clear" line, they seemingly changed the formula across the board. I find that none of the Dymatize ISO100 I've purchased in the last 6 months mixes well at all. It almost seems as if the formula is bordering on water resistant/water proof, as it now tends to clump or leave dry power deposited in my mouth piece or along the sides. I've reached out to the customer support, so I'm waiting to hear back, but the line is practically unusable now. It takes upwards of 10-15 minutes of attention to get it to MOSTLY mix.

Jan 10, 2020
Verified Buyer

I have been buying Fudge Brownie for quite some time. It has been my favorite for a long time. I just purchased a new 5 pound container recently and I dont feel this one mixes very well. I have never had this problem before, but this batch clumps up. Hopefully this is a one off.

Dec 27, 2019
Verified Buyer
  • 3 Fudge Brownie
  • 6 Chocolate Peanut Butter

Dymatize iso-100 is a fantastic product however the flavors that I have tried so far are not so great. I currently take this product as well as ON Pro Gainer - chocolate which has a great flavor. I believe both to be high quality products that I will continue to take. I am just not a huge fan of dymatizes flavor profile. The chocolate peanut butter is a little too overwhelming but those who like a strong peanut butter taste will probably like it. The fudge brownie however taste like play doh smells with a sweet after taste of sugary fudge. I have 5lbs containers of both which I will continue to drink however I will not be ordering either flavor in the future.

Dec 26, 2019
Verified Buyer
  • 10 Birthday Cake

This comment is not to advertise this product in any form!! but I honestly have tried it and it is Fantastic! It mixes great with water, no stomach discomfort and the flavor is amazing! Now I know it is kinda pricey but believe me you get what you pay for and I will definitely buy another one!

Dec 08, 2019
  • 10 Orange Dreamsicle
  • 9 Chocolate Peanut Butter

ISO 100 has been a great solution for me. Easy on my (lactose intolerant) stomach and tastes great. Mixes very well in water and my personal preference coconut milk. My first purchases were Chocolate Peanut Better and Orange Dreamsicle. I find the Chocolate Peanut butter to have a really strong peanut butter taste. If you enjoy that kind of strong flavor then it's really tasty and I recommend it. The Orange Dreamsicle has a more subtle taste and was my personal preference between the two. But both are really good and I would buy them again in addition to trying a number of additional flavors as well. If you have a sensitive stomach like me or are looking for a qulity ISO that tastes great and mixes super easy then I would definitely go for this one.

Dec 03, 2019
  • 10 Strawberry

I have strawberry flavour that is so tasty and I enjoy drinking after my workout.

Nov 25, 2019
Verified Buyer
  • 1 Orange Dreamsicle

Horrible taste. Feeling bad after every scoop I drink.

Nov 22, 2019
Verified Buyer
  • 5 Cookies and Cream
  • 9 Chocolate Peanut Butter
  • 8 Gourmet Vanilla

Cookies and cream does not mix well and is very sweet. Otherwise a very good protein, no stomach discomfort and tastes great

Nov 11, 2019
Verified Buyer
  • 1 Smooth Banana

I ordered for smooth banana hoping it will be a nice thick flavor and I can mix it with water as well. Unfortunately it is tasteless and event the little taste it has is so bad that unfortunately I will be unable to have it even with milk or almond milk. The only good flavor this brand has is chocolate peanut butter and may be regular peanut butter. even though the rating it has is 8.4 it is not even close to like a 3 or 4.

Oct 18, 2019
Verified Buyer
  • 10 Fudge Brownie

Taste great love the product its true to its flavour and its BcAAs send a vanilla flavour sample pack & that tastes great to

Oct 15, 2019
Verified Buyer
  • 10 Fudge Brownie

Mixes very well with water and the Fudge Brownie tastes exactly as the flavor!

Oct 11, 2019
  • 8 Vanilla

This is my go to protien. Dymatize is probably the highest quality protein product you can get.

Oct 10, 2019
  • 5 Strawberry

very effective and great taste. But if you need up-to 5,0% Dissc0unt on UK#1 Whey protein Use this Refferal Cod>: "JACLYN-R54" while sign up on My protein,com<><><><><><><><>

Oct 05, 2019
Verified Buyer
  • 9 Gourmet Chocolate
  • 5 Vanilla
Sep 23, 2019
  • 6 Gourmet Vanilla

I have been happily using Iso 100 since 1 year. Since i like neutral & light flavours, i have been regularly using Gourmet Vanilla since beginning as it used to have no after taste whatsoever and use to mix easily. I am sorry to say but the last box i bought, i have experienced strong bitter aftertaste which is quite irritating and makes the whole idea of buying such a fine product as a waste. Being a regular user of proteins for all these years, i can confidently say that the sales of this product will get majorly affected, if the issue is not addressed on priority. Hope this review is objective for the users as well as for Dyamatize.

4 Sizes
1.6 Lbs.
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10 Flavors
Birthday Cake
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Price: $29.99  ($1.25 / Serving)
Flavor Rating: 8.6
A delicious, ultra-pure, fast-absorbing whey protein isolate to support muscle growth.*

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)
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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