Hydrolyzed 100% Whey Protein Isolate
A delicious, ultra-pure, fast-absorbing whey protein isolate to support muscle growth.*
9.4  out of 10  (2,324 Reviews)

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
2,324 Ratings
Verified Buyer Rating
1,271 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.
Mar 17, 2019
Verified Buyer
  • 10 Chocolate Coconut
  • 9 Chocolate Peanut Butter

Ok - I may be a bit lengthy but a couple of things to calibrate my perspective. I’m not a body builder. I’m a marathoner (about 90 MPw) and i do some weight lifting. I’m late 40’s and male so with my workouts and age I demand a lot of protein, I recently switch to ISO100 from ON. I found the taste good and the performance is even better. I dont get the bloating i was getting previously and I really like the flavor offering as it goes well in my homemade oat/protein pancakes and oatmeal. My only ding is that they dont offer single serving packets for travel. So far I’ve tried the Chocolate Cocounut and the Chocolate Peanut Butter. Digging them both. Gonna try straight up peanutbuuer and also try thier Casein. Quality product and I’ve been satisfied. Thanks

Mar 12, 2019
Verified Buyer
  • 10 Chocolate Peanut Butter

Favorite protein powder Ive used. Shakes up nicely by hand. Chocolate peanut butter is delicious.

Mar 07, 2019
Verified Buyer
  • 10 Fudge Brownie

One of the best protein powders I've ever used.

Mar 05, 2019
Verified Buyer
  • 10 Chocolate Peanut Butter

My tub was about half filled when I got it but other than that great flavor

Mar 04, 2019
Verified Buyer
  • 10 Peanut Butter
  • 9 Gourmet Chocolate
  • 9 Gourmet Vanilla
  • 8 Natural Chocolate

Buy it people. Work out with it in you. Rest with it in you. I don't necessarily care for the taste/after taste of stevia or sucralose; however, these are still great tasting compared to others...the peanut butter has the least sucralose flavor. That aside, it's the best protein on the market, with no fillers, sugars or harsh processing chemicals and it has the BCAA's needed for growth and recovery; so save your servings of BCAA's for in between shakes. Taste is tertiary or lower on the list for serious muscle builder's. Don't change a thing! I wouldn't mind having "no sweeteners added" option for at least one 5lb tub. Either way, good job Dymatize! I DO NOT buy any other protein and no one else should either. Except for Dymatize ISO100 Casein for last meal before bed.

Mar 03, 2019
Verified Buyer
  • 10 Fudge Brownie
  • 9 Birthday Cake
  • 8 Chocolate Peanut Butter
  • 8 Orange Dreamsicle
  • 8 Gourmet Vanilla
  • 8 Cinnamon Bun

Of all the brands I’ve tried, this one consistently mixes well with add-ins or alone. My top ISO100 flavour is Fudge Brownie. Hands down I can’t get enough. It’s smooth with just the right amount of sweetness (not too sweet), and great with strawberries, banana, PB and oats.

Mar 03, 2019
Verified Buyer
  • 10 Chocolate Peanut Butter

Great taste! It reminds me a lot of a peanut butter milkshake that I get at a restaurant. Will buy again

Feb 21, 2019
Verified Buyer
  • 10 Chocolate Peanut Butter

Amazing flavor! Good in water, milk, oatmeal, smoothies.. anything really. Strongly recommend chocolate peanut butter.

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.

4 Sizes
1.6 Lbs.
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12 Flavors
Birthday Cake
Choose a Flavor
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Price: $29.99  ($1.25 / Serving)
Flavor Rating: 8.6

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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