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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
stars118 ratings114 reviews
  1. 5 stars59% (70)
  2. 4 stars29% (34)
  3. 3 stars8% (9)
  4. 2 stars1% (1)
  5. 1 star3% (4)

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Showing 11-20 of 114 reviews
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
Oct 26, 2025
alp13_4595
5 out of 5 stars review

Great source of protein

[This review was collected as part of a promotion.] Received this product from influenster for a honest review. This is a great unflavored powder when you add flavor to it. Unflavored tastes strange & unpleasant in my opinion. I think you get good value seeing how similar products go for more typically

Review from influenster.com
Helpful?70GIW7NABGMB16150765564
Oct 14, 2025
David K
4 out of 5 stars review

if you want something super simple then this is the product for you. I am not necessarily a fan of unflavored protein powders but i can see a use case for it. for example, when you want to make a dish and want to have extra protein without completely altering the flavor of it. also the macros are very good. good amount of protein per serving and not too many calories either. i also like the simple ingredients list

Review from ExpertVoice.com
Helpful?70GIW7NABGMB16150765564
Oct 16, 2025
KayToy
5 out of 5 stars review

Love Unflavored - versatile

I love this product. Mix with a small amout of liquid to smooth the lumps and then mix in the total amount of liquid. If the liquid is too hot the whey tightens up into little chunks, tempering the whey helps. I can add my own flavorings or spices or fruit, and sweeteners, if needed. It is a great base with a slightly cooked milk flavor profile. With a strong flabor like chocolate or mango fruit - can't really taste it, with tea or coffee it adds a milky flavor.

Review from Glanbia Performance Nutrition, Inc.
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
Jan 18, 2026
KEVIN
3 out of 5 stars review

Not so Pure

I like that there’s no sucralose or artificial crap in this. But I won’t get this again because it’s loaded with Poor Quality Vitamins. I don’t need vitamins in my whey protein.

Helpful?70GIW7NABGMB16150765564
Oct 24, 2025
blu_beautyyy_1773
3 out of 5 stars review

Ok, not the best

[This review was collected as part of a promotion.] Mixes very well but doesn't taste the best. No texture noticed when sipping it. I'm just personally not a fan of the taste even tho it's “unflavored”.

Review from influenster.com
Helpful?70GIW7NABGMB16150765564
reply from Isopure

We recommend trying Isopure Unflavored into your favorite smoothies and juices and letting us know what you think! 👀

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 15, 2025
danaej7_4348
4 out of 5 stars review

Good, Clean product!

[This review was collected as part of a promotion.] Isopure Zero Carb and Vitamins GF Unflavored protein powder was a pretty big win for me. The product is versatile and offers many benefits. I did notice a slight taste in some drinks but can’t put my finger on what the taste is however in a smoothie/baked goods I didn’t really taste it. It mixed well in my protein shake and overnight oats, have yet to try it in coffee. My container was only filled about halfway, maybe a little less and for the price it kind of sucks you don’t get more. But overall very good product so far, no chalky taste and a good, clean option for those looking to add extra protein in their diet.

Review from influenster.com
Helpful?70GIW7NABGMB16150765564
reply from Isopure

Keep experimenting with Isopure Unflavored and let us know your thoughts! 👀

Jul 10, 2025
Anonymous
5 out of 5 stars review

Life Changing!!

[This review was collected as part of a promotion.] This is truly a life changing product!!! I’m one of those girls out there who is trying to eat as much protein as possible and sometimes feel like I run out of ideas or get sick of eating the same things over and over to get in extra protein. But this product allows me to add in protein to virtually anything which is a complete game changer for my diet. I love that it is flavorless and has no carbs so I can add it to both savory and sweet things. I haven’t had a problem with any grittiness or weird textures, it just blends in seamlessly to many things! A truly genius product.

Review from influenster.com
Helpful?70GIW7NABGMB16150765564
reply from Isopure

There isn't anything that Isopure Unflavored doesn't go with!