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Customer reviews for ISOPURE Whey Protein Isolate, Unflavored, 1.55 lbs. for
ISOPURE Whey Protein Isolate, Unflavored, 1.55 lbs.
4.4 out of 5 stars
stars
120 ratings116 reviews
  1. 5 stars59% (71)
  2. 4 stars28% (34)
  3. 3 stars8% (10)
  4. 2 stars1% (1)
  5. 1 star3% (4)

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Showing 11-20 of 116 reviews
Feb 16, 2026
AnaG
5 out of 5 stars review

Taste great

[This review was collected as part of a promotion.] This protein powder mixes easily and is a good source of protein without adding sugar or carbs to my day. I love how easy it is to incorporate it into my day. I also love that there isn't a very distinctive taste.

Review from influenster.com
Helpful?70GIW7NABGMB16150765564
Mar 14, 2026
anonymous
1 out of 5 stars review

Adds a Horrific Taste to Everything!

I wanted an unflavored protein to add to my delicious smoothies and milkshakes however, this protein powder has add a horrid taste that I can't even describe to every milkshake and smoothie! I would never buy this product again it adds a milky horrid taste. Makes all my delicious smoothies and milkshakes un-drinkable!

Helpful?70GIW7NABGMB16150765564
Aug 30, 2025
Jim
3 out of 5 stars review

Verified Purchase

Tasteless but ok

Its fine to add to a protein shake. Literally zero taste

Helpful?70GIW7NABGMB16150765564
May 6, 2026
anonymous
1 out of 5 stars review

Ripoff!!!

This is 100% rip off. It may be quality protein, but it's twice the price for half as much as the nasty flavored stuff that's full of garbage. there's better stuff available at a much better price elsewhere.

Helpful?70GIW7NABGMB16150765564
Feb 2, 2026
Kendria
5 out of 5 stars review

I love it I mix a scoop in my protein shakes it's perfect it makes the best protein shakes I love it being unflavored I can mix whatever I want in it n it turns out great!!!

Helpful?70GIW7NABGMB16150765564
Aug 23, 2025
vanessab509_6459
4 out of 5 stars review

Good supplement for protein

[This review was collected as part of a promotion.] I use it for breakfast in my oatmeal to add some extra protein. I couldn’t tell it was in there. No grittiness or weird taste that I could tell. I’d recommend it if you want to add some protein into your diet.

Review from Glanbia Performance Nutrition, Inc.
Helpful?70GIW7NABGMB16150765564
reply from Isopure

Proats is our favorite!

Aug 8, 2025
devonm8_8780
4 out of 5 stars review

Looking forward to using it even more!

[This review was collected as part of a promotion.] I liked that this wasn’t flavored so it can be added to anything. I also hadn’t thought of adding protein powder to baked goods before and liked that idea! I haven’t tried it yet but look forward to it

Review from Glanbia Performance Nutrition, Inc.
Helpful?70GIW7NABGMB16150765564
reply from Isopure

Try Isopure Unflavored in some baking recipes and let us know how it turns out!

Aug 23, 2025
mariahp95_1292
4 out of 5 stars review

Super Versatile Zero-Carb Protein

[This review was collected as part of a promotion.] This unflavored protein powder is incredibly versatile with 25g of protein per serving. On its own with water, it’s bland but works in a pinch for a quick shake. Mixed into pasta sauce, it added protein without overpowering the flavor (though it slightly changed the texture). Blended into a smoothie, I couldn’t even tell it was there! I love how many ways I can use it—next I’m trying brownies or another dessert. Great for hitting protein goals without carbs, just not my favorite when mixed alone.

Review from Glanbia Performance Nutrition, Inc.
Helpful?70GIW7NABGMB16150765564
reply from Isopure

Pasta sauce and protein? We love this idea! 😎

Aug 24, 2025
Anonymous
5 out of 5 stars review

Doesnt change the flavor (unflavored)

[This review was collected as part of a promotion.] I started adding this protein to my daily green juice and honestly I love it! It doesn’t change the flavor of my green juice frappe 😂 and adds protein to it which is helpful! Also, my stomach is doing good with this protein :)

Review from Glanbia Performance Nutrition, Inc.
Helpful?70GIW7NABGMB16150765564
reply from Isopure

Hard to beat protein and greens!

Sep 15, 2025
bellassanctuary_2465
5 out of 5 stars review

Awesome product

[This review was collected as part of a promotion.] Honestly I think it’s an awesome product. It has no flavor and I didn’t think it tasted like some proteins where it’s chalky. It was very easy to mix into other drinks and into my meals. I’d definitely recommend buying it.

Review from Glanbia Performance Nutrition, Inc.
Helpful?70GIW7NABGMB16150765564