About Isopure

By HighYa Research Team
Published on: Apr 30, 2014

Protein is an integral part of your diet, so it’s no surprise that high-protein, low carbohydrate products have become all the rage in recent years. As such, Isopure, which claims to be one of the cleanest, purest protein products available, has become an increasingly popular choice for those of us who want added protein in our diets, but don’t want many of the carbohydrates associated with most powders and drinks.

But can Isopure really help you reach your fitness goals? Let’s scoop up the facts and find out.

Quick Facts About Isopure

At its most basic, Isopure claims to offer a variety of powders and drinks that contain 100% pure whey protein isolate, which act to quickly repair and refuel your muscles. This protein is claimed to provide the highest absorption rates, to be low-calorie, and to contain no lactose, impurities, carbohydrates, or preservatives.

With this in mind, here’s a quick overview of Isopure products:


  • Original Formula – Contains 40g of protein and 25g of complex carbohydrates. Available in Alpine Punch flavor.
  • Zero Carb – Similar to the Original Formula, but without the carbohydrates. Available in Coconut, Pineapple Orange Banana, Icy Orange, Grape Frost, and other flavors.
  • Isopure Tea – Contains a full dose of flavonoid antioxidants, in addition to caffeine. Available in Lemon Black Tea and Lemon Green Tea flavors.
  • Isopure Mass – This 350-calorie drink contains 53g of carbohydrates and 35g of whey protein isolate to help you realize big gains. Available in Grape Frost and Alpine Punch flavors.
  • Coconut Water – Combines whey protein isolate with the benefits of coconut water.

Powders: Available in a variety of flavors, including Strawberries & Cream, Dutch Chocolate, Creamy Vanilla, Pineapple Orange Banana, and more.

  • Original Formula – 50g of whey protein isolate and 4.6grams of L-Glutamine to help your muscles recover and repair after exercise.
  • Zero Carb – Contains 50g of whey protein isolate, in addition to essential minerals and nutrients, but without any carbohydrates.
  • Endurance – Includes 20g of whey protein isolate that helps improve endurance during and after your workout.
  • Low Carb – A meal replacement shake that contains 42g of whey protein isolate.
  • Mass – Contains 86g of carbs, 53g of whey protein isolate, and 600 calories to help you quickly gain weight.
  • Isopure Whey – Contains 26g of whey protein isolate per serving in an unflavored powder.
  • WPI Natural Flavor – Contains 50g of whey protein isolate, and sweetened only with cane sugar & Luo Han Guo.
  • Black & Green Tea – Contains 80mg of caffeine per serving, in addition to flavonoid antioxidants.
  • With Coffee – Contains 50g of whey protein isolate and real coffee.

Isopure Plus – A line of fruit-based nutritional drinks that contain 15g of ion-exchange whey protein isolate. According to the company, these drinks are ideal for a wide range of individuals, including seniors, chemotherapy and weight loss surgery patients, and those who just don’t have the time to eat nutritiously.

All Isopure products are claimed to be manufactured in the U.S.

Isopure Pricing & Refund Policy

While there are no prices available on the Isopure website, their products are available through a number of independent retailers, including GNC, The Vitamin Shoppe, Amazon.com, Bodybuilding.com, and more.

With this in mind, powders appear to range in price between $30 and $140, depending on volume, while drinks range in price between $46 and $50 for 12-pack bottles.

Because Isopure products are sold through third-party companies, refund policies will depend on the retailer.

What Do Other Consumers Have to Say About Isopure?

Isopure appears to be a sub-company of Nature’s Best based out of Hauppauge, NY, although they claim to have been in business for more than 25 years. During our research, we were unable to locate a Better Business Bureau listing for Nature’s best in New York state, and Isopure is not listed at all.

Online customer reviews regarding Isopure products appear to be mostly positive. However, some of the most common complaints we encountered included high price, very bad taste, and indigestion/gas/stomach pains.

What’s the Bottom Line About Isopure?

While most customers seem to be pleased with their Isopure products, there are a few factors you should consider before making your purchase.

First, although Isopure products are advertised as being lactose free, we read one detailed online review that claimed they are not 100% free of lactose-derived ingredients. This means that Isopure should be fine for individuals who are lactose intolerant, but not for those who are allergic to lactose—a small but important difference.

Next, while the Isopure Plus product claims to have been proven to be beneficial for certain medical conditions such as HIV/AIDS, cancer and gastric bypass, they do not appear to be third-party tested for purity. During our research, we read numerous customer reviews that cited big differences in quality between batches, and that some had a distinct chemical odor and/or flavor.

In addition, in order to avoid the carbohydrates associated with traditional sweeteners, Isopure products use sucralose, an artificial sweetener than is FDA approved and is generally considered safe at 9mg or less per day. However, there have been some studies conducted on animals that indicate excessive consumption of sucralose (>1,500mg per day) has been shown to have some serious health concerns.

Finally, the number one complaint we encountered related to Isopure powders was very bad taste. As a result, it’s recommended that you mix the powder with milk (regular, soy, or almond), although this may defeat the lactose-free/low carbohydrate aspect. According to reports, the worst taste is with water.

Read Isopure Customer Reviews and Complaints

Write a Review
Average Customer Rating: 5.0
Rating Snapshot:
5 star: 1 4 star: 0 3 star: 0 2 star: 0 1 star:  0
Bottom Line: 100% would recommend it to a friend
  • 3 out 5 people found this review helpful

    Very refreshing!

    • By Duffy K.,
    • Sacramento, CA,
    • Jan 26, 2019
    • Verified Reviewer

    I tasted the Melon/Apple green drink at Costco and liked it enough to give it a try. It's very refreshing to me, especially straight out of the fridge! It's a great choice for me because I don't always have the time or the inclination to eat, but I want quick protein and energy. This does the trick! It allows me to keep working through lunch, or stave off hunger until I get a chance to eat! I will definitely keep on drinking this.

    Bottom Line: Yes, I would recommend this to a friend

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