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Isopure Zero Carb 100% Whey Protein Isolate Powder, Unflavored, 25g Protein, About 16 Servings

4.5 stars out of 4497 reviews
(4.5)|
4,497 ratings

Key item features

  • 25g of high-quality, ultra-filtered protein from 100% whey protein isolate for exceptional purity and quality
  • An effortless addition to your favorite smoothies and recipes
  • No added colors, flavors, or sweeteners
  • Only 2 ingredients
  • 0g Sugar* and 0g Carbs. *Not a low calorie food
  • 5g Naturally Occurring BCAAs and 4.5g Naturally Occurring Glutamine/Glutamic Acid
  • Packaging may vary
Current price is Now $23.90
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was $33.99
$1.49/oz
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Customer ratings & reviews

4.5 out of 5 stars
stars4,497 ratings2,293 reviews
How item rating is calculated
  1. 5 stars77% (3,449)
  2. 4 stars9% (422)
  3. 3 stars4% (192)
  4. 2 stars3% (124)
  5. 1 star7% (310)

Reviews summary

Pros
  • : Provides 25 grams of protein per serving.
  • : Mixes well into smoothies without affecting flavor.
  • : Blends smoothly into liquids without clumps.
  • : Has a silky, creamy consistency when mixed.
  • : Priced similarly to comparable products.
  • : Blends well with other ingredients and is non-overpowering.
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Showing 1-3 of 2,293 reviews

Jun 7, 2025
Ridge
Item details
Count: 1
Primary ingredient: Whey Isolate
5 out of 5 stars review

Verified Purchase

I am SOO surprised. I am very hypersensitive to protein powder and have always struggled with any shakes or the “protein-packed” snacks; but I can actually stomach this and my husband has added to my food and I didn't even know until he told me!

Helpful?70187a80-4509-11f0-8d8f-136482466119165411683
reply from Isopure

We love to surprise! Isopure Unflavored is a great choice to add for cooking and baking! 

Aug 26, 2025
Airen
5 out of 5 stars review

Seller Verified Purchase

Clean powder free of additives

I really love this protein supplement. It has a mild flavor and mixes pretty well with cool water. I chose it because I was searching for a "clean" supplement it found this on another website that listed independently tested powders free of contaminants like heavy metals. I also like that there are no additives. You can mix it in with some foods for a boost of protein. It kinda gives the food a cheesy/umami flavor.

Review from Glanbia Performance Nutrition, Inc.
Helpful?70187a80-4509-11f0-8d8f-136482466119165411683
reply from Isopure

We're glad you found Isopure Unflavored! 😄

Nov 10, 2025
A.D.
5 out of 5 stars review

Seller Verified Purchase

Solid

As billed great supplement. Some tips when adding to coffee - mix separate in shaker with only 4-6oz lukewarm H2O. The mix becomes frothy and adds to coffee without clumping. Overall this has been an awesome addition to daily protein intake. Additionally, though I'm lactose intolerant no issues with my stomach. Already bought more

Review from Glanbia Performance Nutrition, Inc.
Helpful?70187a80-4509-11f0-8d8f-136482466119165411683