Isopure Protein Powder, Whey Protein Isolate Powder, 25g Protein, Zero Carb & Keto Friendly, No Added Colors/Flavors/Sweeteners, Unflavored
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4.7 out of 5 stars with 51 reviews
5 out of 5 stars
22 December, 2025
originally posted on Glanbia Performance Nutrition, Inc.
Good Pure isolate
This is a good pure isolate protein with only one other ingredient. This protein does not bother my lactose intolerance.
4 out of 5 stars
21 December, 2025
originally posted on Glanbia Performance Nutrition, Inc.
Bulk with no filler
Overall, a great option for bulk protein with no filler. Taste is decent for no artificial flavors, and the additives are minimal. This powder would mix much better in a shaker, but I tend to stir my powders together. I would recommend saving a scoop from another container because this one was burred at the very bottom.
5 out of 5 stars
10 November, 2025
originally posted on Glanbia Performance Nutrition, Inc.
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
5 out of 5 stars
22 October, 2025
originally posted on Glanbia Performance Nutrition, Inc.
Perfect!
Perfect protein product. No junk. Dissolves easy.
5 out of 5 stars
17 October, 2025
originally posted on Glanbia Performance Nutrition, Inc.
Great product!
I've been using Isopure Unflavored protein powder for a couple of years. It dissolves easily into beverages (I add it to my chai) and I like adding it to my smoothies, Greek yogurt and oatmeal as a way to get extra protein. I also love the large package size which means less ordering + less packaging waste!
5 out of 5 stars
16 October, 2025
originally posted on Glanbia Performance Nutrition, Inc.
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.
5 out of 5 stars
15 October, 2025
originally posted on ExpertVoice.com

Protein stacker
I add this to my everyday protein intake, gives me an extra stack of protein
4 out of 5 stars
14 October, 2025
originally posted on ExpertVoice.com

(no review title)
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
5 out of 5 stars
6 October, 2025
originally posted on ExpertVoice.com

Versatility in Protein
I love using unflavored protein and this is even better since it is super clean.
5 out of 5 stars
1 October, 2025
originally posted on Glanbia Performance Nutrition, Inc.
Will buy again
I bought this to add to my morning iced latte. It blends with a frother seamlessly. I can’t even tell there’s protein powder in there which is exactly what I was hoping for.
5 out of 5 stars
16 September, 2025
originally posted on Glanbia Performance Nutrition, Inc.
Great taste
Loved this protein powder. What I liked is that it did not taste like protein powder. Normally the powders taste like malt but this one has no taste and no after taste.
5 out of 5 stars
10 September, 2025
originally posted on Glanbia Performance Nutrition, Inc.
Great for people who don't like sweet drinks
I add almond milk and 1 scoop, some blue berries, or strawberries, or pecan, and is the perfect shake
5 out of 5 stars
26 August, 2025
originally posted on Glanbia Performance Nutrition, Inc.
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.
1 reply from Isopure team - 5 months ago
We're glad you found Isopure Unflavored! 😄
5 out of 5 stars
19 August, 2025
originally posted on ExpertVoice.com

WOW 10/10 Product — Pleasantly Surprised!
i was so excited when i found a whey protein isolate!! i decided to give this a go and WOW. it’s perfect. wasn’t sure how i’d feel about unflavored whey but it’s fine. actually it’s better because they i can add whatever i want to it without feeling like im gonna ‘ruin’ the taste. i will be purchasing this in the future after i finish this bag.
1 reply from Isopure team - 5 months ago
Glad to see Isopure Unflavored won you over!
5 out of 5 stars
1 August, 2025
originally posted on Glanbia Performance Nutrition, Inc.
I like it
Good (very mild) flavor, dissolves in water easily with little stirring.
5 out of 5 stars
31 July, 2025
originally posted on Glanbia Performance Nutrition, Inc.
DIY Frappe
I use this in my diy "frappe" every morning. Not only does it help me get my protein in, it also is super creamy!
1 reply from Isopure team - 6 months ago
As we like to call it, a "frappetein!" 🥤
3 out of 5 stars
29 July, 2025
originally posted on Glanbia Performance Nutrition, Inc.
Expensive but Trustworthy
Expensive but I trust Isopure to produce an excellent product.
5 out of 5 stars
21 July, 2025
originally posted on Glanbia Performance Nutrition, Inc.
Tasteless and Easy to Digest
I always have trouble with digesting protein powders. Not this one! It’s also tasteless so it’s great for baking or adding to anything.
1 reply from Isopure team - 6 months ago
For baking, Isopure Unflavored is #1! 🏅
5 out of 5 stars
11 July, 2025
originally posted on Glanbia Performance Nutrition, Inc.
Perfect for mixing into my coffee
I started a low carb diet and an exercise program in February, and a friend recommended Isopure. It's fantastic! It mixes into my morning coffee with no clumping or mess. I don't like sweet things so having an unflavored protein has made all the difference. I'm down 48 lbs and I've been keeping up with my resistance training, proving it can be done after menopause. I am bringing the 1 lb bag with my on my vacation next month just to make sure I get my daily protein requirements.
1 reply from Isopure team - 6 months ago
Amazing progress! Glad to see Isopure Unflavored is a part of your journey!
5 out of 5 stars
1 July, 2025
originally posted on Glanbia Performance Nutrition, Inc.
Best one I’ve found.
No sugar or sugar substitutes. Finally I found a protein powder without the terrible sickly sweet after taste. I’ve used protein powder drinks for 50 years. Started with Shakly - if you remember that one. Since about 2006 I have found it impossible to find one without the sickly sweet after taste of artificial sugar, or worse Stevia. This is exactly what I want.