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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 91-100 of 116 reviews
Jul 24, 2025
stevef24_8412
5 out of 5 stars review

Easy way to get extra protein!

[This review was collected as part of a promotion.] I am constantly on the lookout to add more protein to my meals. This ISOpure unflavored protein powder is amazing to add to baked dishes and baked treats! I have added it to ice cream mixes for my ninja creami machine, I have baked brownies with this powder! I may or may not have also sprinkled a little in my last lasagna dish. It’s incredibly smooth and silky, no weird aftertaste no issues with texture. Mixes well, blends well and you don’t even know it’s there but you are blessed with added protein that normally wouldn’t be there. So happy I was able to try this unflavored protein powder by isopure!

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

Isopure Unflavored is a staple in the kitchen! 🧑‍🍳

Jul 13, 2025
kimberlyb245_1315
5 out of 5 stars review

Great product

[This review was collected as part of a promotion.] Isopure Zero Carb protein powder is a game-changer if you're serious about upping your protein intake without the extra baggage. It's basically pure protein isolate, so you're getting a super clean source with next to no carbs or fat. The taste is surprisingly good for a protein powder that's so stripped down – it mixes easily and doesn't have that chalky texture some others do. It's not trying to be a dessert, which I appreciate. It’s more about delivering quality protein, and it nails that. Whether you're cutting calories, trying to hit specific macros, or just want a no-nonsense protein boost, Isopure Zero Carb is a solid choice.

Review from Glanbia Performance Nutrition, Inc.
Helpful?70GIW7NABGMB16150765564
Jul 21, 2025
ashleyg4577_8310
4 out of 5 stars review

Decent protein powder

[This review was collected as part of a promotion.] This protein powder isn’t bad. It’s unflavored so you have to mix it with something. I mixed it with water the first time and it wasn’t great. However I like flavored stuff. The packaging is a big tub like most protein powders. I wish the tub was a bit smaller for storage reasons. Otherwise a decent protein powder.

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

Feel free to check out our shop page for flavored versions of Isopure Zero Carb which are also available in smaller 1lb tubs!

Jul 23, 2025
mycahh2_2914
5 out of 5 stars review

Not bad at all

[This review was collected as part of a promotion.] I like it! I appreciate that it's gluten free. I'm a little hesitant about the unflavored just because typically it still has a flavor and this does still have a flavor but it's extremely mild and doesn't effect the taste of whatever I'm drinking. Love the big scooper. It does make things thicker and frothy. Also always turns whatever I'm drinking white.

Review from Glanbia Performance Nutrition, Inc.
Helpful?70GIW7NABGMB16150765564
Jul 10, 2025
sarahjs_8062
4 out of 5 stars review

Good for extra protein

[This review was collected as part of a promotion.] The Isopure unflavored protein mix, mixes well into anything. There is a little bit of a protein after taste, which is normal for most protein products. It’s a great way to add protein into anything you are making since it is unflavored. It has 25 g of protein, zero sugar, and zero carbs. Would recommend definitely for children who may not eat enough protein, as a mix in.

Review from Glanbia Performance Nutrition, Inc.
Helpful?70GIW7NABGMB16150765564
Jul 13, 2025
serenap22_9840
5 out of 5 stars review

The best - no grit and truly no flavor

[This review was collected as part of a promotion.] Absolutely love Isopure’s unflavored protein! I hate all protein powders except this - every other powder is gritty, has a weird aftertaste or just plain tastes weird. This is truly unflavored! I blend it in the morning with my coffee, some skinny syrup and ice for the perfect proffee. I even cook with it - I added it to my pastina broth and it’s completely undetectable but adds that extra punch of protein.

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

Isopure Unflavored is a punch above the rest! 👊

Jul 17, 2025
lacentella_3847
5 out of 5 stars review

YES TO ISOPURE!

[This review was collected as part of a promotion.] I first tried Isopure many years ago when my personal trainer told me it was the best protein powder in the market. I use to use the chocolate & vanilla one which tastes soooo good. This is my first time using a flavorless one & you can mix it into anything. It is too thick to be stirred with just a spoon you have to use a blender for it or else it will clump up in your drinks. I showed different angles in the picture so you can see that the manufacturer doesn't fill the container up to the top it's half empty when you receive it. I've used it twice and I realized it came half empty. But I still love Isopure but the manufacturer needs to do better and stop ripping people off. Thank you Influenster for letting me be apart of this program ❤️❤️

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

We follow applicable laws and regulations related to the manufacture and labeling of our products. The products are filled by weight, not volume. We have Standard Operating Procedures that control how the bottle is filled and subsequently weighed to meet our manufacturing specifications. Like flour or powdered sugar, Isopure powder products can settle in the container during shipping or over time. There also needs to be room for scoopers and desiccant packets in the container.

Oct 15, 2025
Rick A
5 out of 5 stars review

Protein stacker

I add this to my everyday protein intake, gives me an extra stack of protein

Review from ExpertVoice.com
Helpful?70GIW7NABGMB16150765564
Oct 6, 2025
Kelvin F
5 out of 5 stars review

Versatility in Protein

I love using unflavored protein and this is even better since it is super clean.

Review from ExpertVoice.com
Helpful?70GIW7NABGMB16150765564
Jul 9, 2025
jacobr28_2962
5 out of 5 stars review

Good quality and flavorless

[This review was collected as part of a promotion.] I’ve tried other flavorless protein and it always has a taste, this stuff is different. It’s completely tasteless and mixes very well in both drinks and yogurt.

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

Different on another level!