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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
Dec 29, 2025
Ariel
4 out of 5 stars review

A for effort but doesn't always hit the mark

I'm still trying to figure out if i like this product. Although it's "flavorless", when it's added to anything plain it gives a horrible taste in my opinion. I think in a homemade protein smoothie it would be okay but i would put it in a mason jar with a cold liquid and shake really well before adding it even to a blender. It clumps very easily....anyone saying it mixes with ease is probably sponsored by this product. LOL :P I added it to hot coffee and used a frother which just made it clump and curdle. The product itself seems great as far as ingredients but definitely takes a little figuring out to find something it's good in . I was hoping i could just add it to almond milk or coffee and be good to go but it's definitely not that simple unfortunately.

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
Jul 28, 2025
ryanbcfe9_1414
3 out of 5 stars review

Taste is off

[This review was collected as part of a promotion.] This protein powder has a weird taste and aftertaste that I just cannot get past. I tried it with water and milk and the taste was off-putting. However, it does mix well and is not gritty like some protein powders.

Review from Glanbia Performance Nutrition, Inc.
Helpful?70GIW7NABGMB16150765564
Aug 23, 2025
sydnij1_7628
4 out of 5 stars review

Great protein product!

[This review was collected as part of a promotion.] I’ve been using Isopure Unflavored Whey Protein Isolate, and honestly, it’s one of the cleanest and most versatile protein powders I’ve tried. The best part is how neutral it tastes—I can mix it into smoothies, oatmeal, coffee, soups, or even baked goods without it changing the flavor. It is a little chalky but nothing super crazy. Overall, Isopure Unflavored is my go-to protein when I want something clean, effective, and easy to use every day.

Review from Glanbia Performance Nutrition, Inc.
Helpful?70GIW7NABGMB16150765564
Aug 12, 2025
stephanieb238_4584
4 out of 5 stars review

Not bad

[This review was collected as part of a promotion.] Not much to comment on here. I received the unflavored so I wasn’t expecting a whole lot. Typically I like somewhat of a flavor as I tend to mix my protein powders in with my morning coffee but does the trick when adding protein to your diet.

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

We recommend checking out the flavored versions of Isopure Zero/Low Carb! 👀

Aug 28, 2025
joelle305_6638
5 out of 5 stars review

It's actually tasteless!

[This review was collected as part of a promotion.] Our whole family agreed that this protein powder truly is tasteless! This is a huge plus for us, as we're always trying to find ways to incorporate more protein into our diet. We tried it in a smoothie and added it to a tomato basil pasta sauce. My picky 6-year-old even asked for seconds! We can't wait to try this powder in more ways.

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

You'll have to let us know what else you try Isopure Unflavored with!

Aug 15, 2025
ameejun123_4459
4 out of 5 stars review

Should try

[This review was collected as part of a promotion.] This one doesn't change the taste of my drinks at all. I like how simple the packaging it is. It is easy for mixing, but it takes a little bit longer mixing with cold drinks. If its price is affordable, I think it's valuable.

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

Isopure Unflavored is a great addition to any drink without changing flavor!