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ProMix Nutrition Whey Isolate Powder, Unflavored - 2.5 lb (Pack of 2)

  • Based on 492 reviews
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Availability: Only 2 left in stock, order soon!
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Flavor Name: Unflavored


Size: 2.5 Pound (Pack of 2)


Features

  • Build Muscle & Improve Recovery: Promix Whey Isolate Protein Powder is a cold-processed and acid-free bioactive native whey isolate made from milk of grass-fed cows. This lightly sweetened powder contains naturally occurring L-carnitine and lactoferrin, as well as sunflower lecithin for improved absorption and blending. Unflavored. 30 servings per container, 2 scoops per serving.
  • No Artificial Anything: Promix is a science-based nutrition company making products to the standards specified by professional athletes for performance, ingredient quality, and safety. We deliver seriously clean supplements and snacks to people who want to feel and perform their best.
  • Whole Food-Based Ingredients: Made of grass-fed whey (rich in naturally occurring antioxidants and healthy fats), sunflower lecithin (naturally high in phosphatidylcholine), and coconut sugar (lower glycemic index, minimally processed natural sweetener). Thats it.
  • Seriously Clean: Whey Isolate Protein Powder is keto-friendly and made without casein. All Promix products are free of gluten, soy GMOs, hormones, antibiotics, refined sugar, artificial sweeteners, stevia, gums, fillers, and bleach. 94% of ingredients sourced from North America. Partner of 1% for the Planet. Produced in facilities using GMP (Good Manufacturing Practice) standards.

Package Dimensions ‏ : ‎ 11.93 x 10.43 x 5.91 inches; 5.7 pounds


Item model number ‏ : ‎ Whey Isolate_Unflavored_5lb


Department ‏ : ‎ unisex-adult


Date First Available ‏ : ‎ May 5, 2016


Manufacturer ‏ : ‎ ProMix Nutrition


Best Sellers Rank: #2,044 in Health & Household (See Top 100 in Health & Household) #24 in Sports Nutrition Whey Protein Powders


#24 in Sports Nutrition Whey Protein Powders:


Customer Reviews: 4.3 4.3 out of 5 stars (492)


Flavor: Unflavored


Diet Type: Keto


Product Benefits: Muscle Growth


Protein Source: Whey


Item Weight: 5.7 pounds


Unit Count: 160 Ounce


Number of Items: 2


Brand Name: Promix Nutrition


Package Type Name: Bottle


Age Range Description: Adult


UPC: 682318754648


Item Highlight: Grass-Fed Whey Protein Isolate Powder for Low-Carb Post-Workout Muscle Recovery, Lean Growth & Performance


Item Nype Name: Whey Isolate Protein Powder


Manufacturer: ProMix Nutrition


Model Number: Whey Isolate_Unflavored_5lb


Manufacturer Part Number: Whey Isolate_Unflavored_5lb


Recommended Uses For Product: Fitness


Allergen Information: Milk


Material Type Free: No Artificial Flavors


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Oct 13 – Oct 14

This item is non-returnable:

Non-returnable due to Food safety reasons

View our full returns policy here.

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Top Amazon Reviews


  • Unflavored excellent but chocolate better
Flavor Name: Unflavored Size: 2.5 Pound (Pack of 1)
ProMix Whey Isolate Powdeer gives the highest Protein I have found while being the most mixable of those I have tried. It produces a smoth texture. The unflavored was as advertised though I finally found the chocolate to be more to my taste
Reviewed in the United States on September 22, 2026 by Daniel Jenkins

  • Mix is great with my recipes
Flavor Name: Unflavored Size: 2.5 Pound (Pack of 1)
This worked out really well and I can’t even taste it when I mix it in to my smoothies or some of my other recipes so I’m very happy
Reviewed in the United States on July 21, 2026 by Amazon Customer

  • ~~ Unflavored but NOT tasteless! ~~
Flavor Name: Unflavored Size: 2.5 Pound (Pack of 2)
Just because this whey is "unflavored" does NOT mean it is tasteless! If you have never taken a spoonful of whey from plain yogurt, do yourselves a favor and do so! You will realize that this liquid has a taste to it and personally I do NOT like eating it by itself! HOWEVER the whole purpose of me purchasing this whey for the family was so that we could enjoy some nutritious shakes etc. We purposely do not buy flavored whey as we do not want the list of ingredients that comes with it, preferring to add our own. Chocolate, caramel, strawberry...... the choices are limitless. Mix this grass fed whey with some almond or cashew milk, sweetener and flavor of choice plus some ice and you will NEVER know the whey is in there. Trying to drink it by itself? Quit torturing yourself! I researched for many hours and read many reviews before deciding on this GRASS FED Whey Isolate. I knew I was risking it by ordering 5lbs the first time around but decided to do so anyways. What pushed me towards this one? If purchasing beef we like to purchase grass fed as not only do we prefer the taste but also believe it to be better for our health. Yes, I realize that whey does not come from the meat of a cow! We also believe that grass fed milk is better for your health thus deciding on this whey. We have NOT been disappointed! 5lbs is a LOT of whey. It comes in a large plastic bottle with screw on lid. (Sealed on outside and inside for double protection.) Height of bottle is almost 11 1/2" and the diameter at the base is 7 1/4". The bottle is nearly full when it arrives. This whey appears to be a well made, verified product (you can read all the nutritional information in the listing) and we have used it many times. Highly recommended. We purchased this at the full prevailing price. We were not required to write a review but chose to do so. Thanks, Liz ... show more
Reviewed in the United States on December 6, 2016 by Richard and Liz

  • Great quality. Perfect for IBS
Flavor Name: Unflavored Size: 2.5 Pound (Pack of 1)
This is the best Protein I've ever had!! And that's a lot to say!! I've been drinking protein shakes since 2016 and I never found a protein without stevia (I really hate the aftertaste). This one with coconut sugar is the best and is not that sweet so it's perfect. The texture is super creamy and is perfect for my IBS. And you can dissolve this with just a little shake so it's super great!! ... show more
Reviewed in the United States on March 30, 2026 by Rebeca Maiorano

  • Lower amino acids and requiring a larger scoop. 😡
Flavor Name: Unflavored Size: 2.5 Pound (Pack of 2)
Once I got it home, I found the flavor to be okay—I’m not disputing that. But I realized that the Naked brand Iso protein has more amino acids per serving. When you compare servings, both brands say that two scoops equal one serving. But when you look at each serving, you’re getting significantly more amino acids from the Naked Whey Iso compared to the Promix. What’s even more confusing is that the Promix scoop is almost twice the size of the Naked scoop. That makes me wonder if there are fillers in it, because I don’t understand why the scoop would need to be so much bigger while delivering fewer amino acids. I don’t think I’ll be buying Promix again. Based on what I’m seeing, the Naked brand Iso offers better value and quality of protein. I’m glad I tried it, but after seeing the scoop size and comparing them side-by-side, I won’t be purchasing Promix again. ... show more
Reviewed in the United States on October 11, 2025 by Crista & Jason

  • High Quality
Flavor Name: Unflavored Size: 2.5 Pound (Pack of 2)
High quality stuff. I've been using this for a few months now, and I can tell based on my body composition that it is high quality protein. It dissolves well in water or juice using just a spoon to mix. It tastes like plain dairy whey, which is to say it has a strong milk-like taste. It's not entirely unpleasant, but not delicious either. For me, that is a fair trade for knowing I'm using a clean, grass fed product without artificial sweeteners and flavors. This is best with juice IMO, but OK with water when watching carb intake. I use 50g first thing AM and 50g post-workout, and never have any bloating from it. I strive to use protein powder for not more than half of my daily protein intake, but I have had a few days when I've used this for all 225g of my daily protein due to time constraints, and still no bloating. This is one product I will continue to buy. It is a good choice for people who have concerns about additives in their diet. ... show more
Reviewed in the United States on February 8, 2017 by CE

  • Mixes well; not too frothy, good product
Flavor Name: Unflavored Size: 2.5 Pound (Pack of 1)
I have to trust their labels, so i've not attempted any validation or researching any studies on possible metals etc in the mix. I assume it to be the good, pure whey isolate they claim. I'm on my third canister of unflavored. What I really like about this brand is that it mixes very well. My main consumption is 10 oz mild, two scoops, 1 banana, two big spoonfuls of peanut butter and then either honey or sometimes choc syrup, and then 9 cubes of ice to make up for the rest of the suggested liquid content. I've also done almonds over peanut butter and blueberries instead. With each recipe, you can hardly tell you have whey in there. I also have trouble keeping on weight because i do a fair amount of hitt and running in addition to strength training, hence my desire for a good whey. I've tried the serious mass and other such blends but returned to whey only due to some stomach "pooching" that i experienced w/the serious mass in particular. But this brand is much better imo, even though it's apples and oranges when comparing to something like serious mass. My point there is that this mixes better and no frothing to interfere w/the taste of the shake. I plan to continue using this for a while at least. ... show more
Reviewed in the United States on August 8, 2019 by T

  • Bag doesn’t close. What a mess…
Flavor Name: Unflavored Size: 2.5 Pound (Pack of 1)
I thought a company that boasts quality could manage to make the package sealable! I regret this purchase, even though the product itself is good. Buyer beware
Reviewed in the United States on August 14, 2026 by michael

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