Hydrolyzed 100% Whey Protein Isolate
A delicious, ultra-pure, fast-absorbing whey protein isolate to support muscle growth.*
9.4  out of 10  (2,317 Reviews)
5 Sizes
3 Lbs.
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11 Flavors
Chocolate Peanut Butter
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Price: $49.99  ($1.11 / Serving)
Flavor Rating: 9.3
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Buy 2 For $120
For a limited time, buy 2 ISO100, 5 Lbs. for $120!

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
2,317 Ratings
Verified Buyer Rating
1,263 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.
Feb 16, 2019
Verified Buyer
  • 9 Gourmet Vanilla

I switched from ON Gold to this, and will definitely get Dymatize again. I like that the ingredient list isn’t a mile long, and this mixes together really well. Vanilla tastes great!

Feb 13, 2019
  • 9 Fudge Brownie

Good product - does exactly as advertised. Made the jump from protein blends to an isolate and the ISO100 is a good isolate at a good price. The flavor is decent. I add a scoop of plain Greek yoghurt along with water to enhance its fudge brownie flavor. Sometime I also add a dash of heavy cream too. I like making this into a paste and adding toppings as well. If you want a flavorful & reliable isolate at an affordable price, ISO100 is for you.

Feb 11, 2019
Verified Buyer
  • 10 Fudge Brownie

I have only tried the fudge brownie flavor. The powder smells just like brownie mix. I combine with 8 oz of rice milk, shake for about 30 seconds in standard shaker, then remove the shaker ball and add ice and a smoothie straw. Let it sit for about 5 mins to de-foam (although it's only a little foamy) and get cold, then drink. Tastes amazing! Like, I annoy people around me by continually saying "Oh, man, this is so good" as I savor it. That's how good it is. No bad after taste either. Also, no tummy problems so far, which is an issue I have had with some other brands. Highly recommend!

Feb 10, 2019
Verified Buyer
  • 10 Gourmet Chocolate
  • 1 Cookies and Cream
  • 7 Chocolate Peanut Butter
  • 9 Fudge Brownie
  • 1 Orange Dreamsicle
  • 7 Natural Chocolate
  • 7 Chocolate Coconut

Great product, most of the flavor taste great and they all mix well.

Feb 07, 2019
Verified Buyer
  • 10 Peanut Butter
  • 8 Chocolate Peanut Butter
  • 8 Gourmet Vanilla
  • 7 Orange Dreamsicle
Feb 04, 2019
Verified Buyer
  • 10 Orange Ice Cream

Disclaimer: This review is based on one flavor. I really wanted to try this product so I ordered the Orange Ice Cream flavor. Usually my shakes contain fat-free milk, bananas, and protein powder. But this stuff here - this tastes best with just water! It tastes just like an orange creamiscle. I even had a shake from this on my day off it is soooo good! They absolutely nailed this one!

Jan 25, 2019
  • 9 Orange Dreamsicle

Great product, thanks to the Dymatize forum representatives for helping me find this product.

Jan 24, 2019
Verified Buyer
  • 8 Natural Chocolate

This was my first time buying ISO100 and I find that you have to be pretty specific with the amount of water you put in (150mL) for it to taste good, at least for Natural Chocolate. There's very little water required which means less water you have to gulp down after your workout which is a big bonus. It mixes extremely smoothly with water and is very fast to dissolve, although it does foam up a little bit. I usually wait 2 minutes or so for it to settle before I drink it which isn't a big deal. I wasn't a big fan of this flavour at first but it tastes better the more you drink it. I'm also lactose intolerant so this protein was a great choice for me, didn't make me gassy or uncomfortable!

Jan 19, 2019
Verified Buyer
  • 9 Vanilla

Ok everybody talking about the flavor whatttt???💩💩💩💩 What about the result? In my experience help me to weight losing and gain some muscles so fast results as 3 months working out

Jan 18, 2019
Verified Buyer

Unfortunately, in my last order I found ISO100 pack with potentially hazardous content. It smells like burnt plastic and pack inside is also damaged and looks like it had heat exposure. Lot # is L1220801, plant # 2241280. Unfortunately, here is not technically possible to attached photos, but I provided them to Dymatized representatives, please audit and enhance product and quality control on your plants. Health of your customers must be your #1 priority and cannot be compromise anyway. Sad that I should spend time of my life for such issues.

Jan 17, 2019
Verified Buyer
  • 10 Fudge Brownie
Jan 12, 2019
Verified Buyer
  • 10 Chocolate Peanut Butter

This protein is perfect for lactose intolerant people like me. ABSOLUTELY 0 discomfort after drinking it. Also, it tastes so good. Some other protein brands taste good but leave an awful aftertaste. The Chocolate Peanut Butter from ISO100 tastes extremely good and leaves no aftertaste.

Jan 10, 2019
  • 8 Fudge Brownie

This product is amazing. Quickly dissolves and really the effects are awesome. The taste is good if it is shaked by 200ml of water not more!!!

Jan 05, 2019
Verified Buyer
  • 10 Fudge Brownie
  • 10 Chocolate Peanut Butter
  • 9 Cinnamon Bun

This is the first whey I can tolerate. I love it. I try a new flavor and I love every one of them. I am partial to chocolate which is why I gave Cinnamon Bun a 9 but it still tastes great. I wish they made a casein product as well.

Dec 31, 2018
  • 10 Cinnamon Bun

This has become my go-to protein while cutting. Great clean protein with really good macros. Tastes great with just water....even better with some unsweetened almond milk. bakes great in all of my recipes. Love the cinnamon bun flavor and eager to try new flavors.

1.6 Lbs.
1.6 Lbs.
24 Servings | $1.25 Per Serving
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1.6 Lbs. - Naturally Flavored
1.6 Lbs. - Naturally Flavored
23 Servings | $1.30 Per Serving
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3 Lbs.
3 Lbs.
45 Servings | $1.11 Per Serving
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2 For $120
5 Lbs.
5 Lbs.
76 Servings | $0.99 Per Serving
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5 Lbs. - Natural
5 Lbs. - Natural
72 Servings | $1.11 Per Serving
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What's in Dymatize ISO100

3 Lbs. Chocolate Peanut Butter
Serving Size: 1 Scoop (32g)
Servings Per Container: About 43
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 180 mg 5%
Total Carbohydrate 2 g 1%
Dietary Fiber 0 g 0%
Sugars 1 g       
Protein 25 g 50%
Vitamin A 0%
Vitamin C 0%
Calcium 10%
Iron 2%
* 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, Partially Defatted Peanut Flour, Cocoa Powder (Processed With Alkali), Natural and Artificial Flavors, Salt, Soy Lecithin, 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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