Whey Isolate Powder for Building Muscle*
Ultra-Fast Absorption to Build and Repair Muscle*
9.3 out of 10  (2,181 Reviews)
4 Sizes
1.6 Lbs.
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1 Flavor
Rocky Road - Exclusive!
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Product Overview

Isolate Supplement of the Year
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
Dymatize ISO-100. Hydrolyzed. 100% Whey Protein Isolate.
Available in
11 Indulgent Flavors
chocolate coconut
birthday cake
cinnamon bun
cookies & cream
fudge brownie
gourmet chocolate
gourmet vanilla
orange dreamsicle
rocky road

Available in 1.6lb only

smooth banana

Available in 1.6lb only

Dymatize. Perfecting Athletic Nutrition Get Dymatize

Ratings & Reviews

Overall Rating
2,181 Ratings
Verified Buyer Rating
1,112 Ratings
Average Flavor Rating
11 Flavors
Top Rated Flavor
Gourmet 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.
  • 10 Birthday Cake

One of the best tasting whey isolates I have ever used. Mixes instantly in my shaker cup and doesn't leave me feeling bloated or gassy at all. Great isolate all around.

  • 9 Gourmet Chocolate
  • 10 Smooth Banana
  • 10 Birthday Cake
  • 10 Orange Dreamsicle
  • 9 Cinnamon Bun
  • 8 Cookies and Cream
  • 8 Strawberry
  • 10 Rocky Road - Exclusive!
  • 10 Chocolate Coconut

I enjoyed all of the non-traditional flavors of Dymatize Iso, even admittedly indecisive when choosing among them! For Chocolate Coconut, it is best to take it in a 1:1 ratio of water and milk to get an ideal balance of Chocolate and Coconut. For the rest of the flavors, I prefer them with simply milk (or Fairlife if one is lactose intolerant like I am). A solid 10/10 overall rating for the macros as well as being one of the very few companies to have such variety of flavors for one product!

  • 8 Cinnamon Bun

I was only able to try this flavor from a sample in my order so I only had a single serving. The product mixed well and a little to no clumping. I mixed the protein with a serving of almond milk. The shake was pretty creamy and had no weird aftertaste. It wasn't a super spot on cinnamon bun flavor but it was still good nonetheless.

Verified Buyer
  • 10 Gourmet Vanilla
  • 8 Cookies and Cream
  • 10 Cinnamon Bun
  • 10 Orange Dreamsicle
  • 8 Smooth Banana
  • 10 Birthday Cake
  • 9 Rocky Road - Exclusive!

The GOAT of protein powders. Clean profile/ingredients, great macros, and mixes easily with water. The flavors are spot on and don't have any aftertaste or hint of sweeteners (orange dreamsicle, cinnamon bun, and birthday cake are by far the best). I'm a fan of thicker/foamier shakes, and ISO-100 fits the bill. Easily worth the price if you're watching your budget.

  • 10 Fudge Brownie
  • 5 Cinnamon Bun
  • 8 Birthday Cake
  • 4 Chocolate Coconut

I really like the Dymatize products because they taste good and are low in sugar and carbs! The Birthday Cake flavor tastes good, just not a lot like Birthday Cake. The Fudge Brownie is definitely my favorite!! Chocolate Coconut does taste like chocolate coconut, but very artificial tasting. Cinnamon Bun is okay. I won't buy chocolate coconut or cinnamon bun again, however.

† 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

Serving Size: 1 Scoop (32g)
Servings Per Container: About 23
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 100 mg 4%
Potassium 220 mg 6%
Total Carbohydrate 2 g 1%
Dietary Fiber 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), Natural and Artificial Flavors, Soy Lecithin, Salt, Potassium Chloride, Sucralose, Steviol Glycosides (Stevia).
Contains Milk and Soy.

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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