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ALLMAX NUTRITION ISOFLEX 100% Pure Whey Protein Isolate Powder 27g 2lb
Bid Price: $44.99

Whey Protein Isolate - U.S. Sourced Sports Nutrition Protein Powder 5lb Bag
Bid Price: $80.95

Levels Grass Fed 100% Whey Protein Vanilla Bean 5 LB
Bid Price: $62.99

BulkSupplements Whey Protein Isolate Powder - Unflavored Protein Powder
Bid Price: $49.97

Nutrex 100% WHEY Bulk Size Protein Powder Whey Isolate Blend 128 Servings 10 LB
Bid Price: $84.99

Optimum Nutrition Gold Standard Whey Protein Powder, 5.64 Extreme Milk Chocolate
Bid Price: $59.99

Nutricost Whey Protein Isolate (Unflavored) 5LBS - Protein Powder
Bid Price: $74.98

Transparent Labs Grass-Fed Whey Protein Isolate - Oatmeal Chocolate Chip 7/2026
Bid Price: $34.99

2lb 100% Pure Whey Protein Isolate 90% Grass Fed USDA Certified (Unflavored)
Bid Price: $36.75

Isopure Zero Carb Protein Isolate Simply Vanilla 25G Protein 3.4 LB Tub EXP01/27
Bid Price: $57.00

Transparent Labs 100% Grass Fed Whey Protein 30 Servings Chocolate Peanut Butter
Bid Price: $34.99

Isopure Zero Carb Protein Isolate Simply Vanilla 25G Protein 3.4 LB Tub EXP01/27
Bid Price: $52.99

BulkSupplements Whey Protein Isolate Powder 1kg - Unflavored Protein Powder
Bid Price: $49.97

ALLMAX NUTRITION ISOFLEX 100% Pure Whey Protein Isolate Powder 27g 5lb
Bid Price: $84.99

Bucked Up All Natural Whey Protein Isolate Chocolate Peanut Butter 30 Servings
Bid Price: $39.99

Protein2o 20g Whey Protein Infused Water Plus Electrolytes, Strawberry Watermelo
Bid Price: $20.34

PureTaqwa-Diamond Standard 100% Whey Protein Powder-Double Rich Chocolate Flavor
Bid Price: $26.24

Muscletech NitroTech, Whey Protein Isolate & Peptides Vanilla 4 LB EXP: 08/26+
Bid Price: $51.75

NVS 100% Pure Whey Protein Isolate 90% Grass Fed USDA Certified (Unflavored) USA
Bid Price: $179.95

Optimum Nutrition Gold Standard Whey Protein Powder, Vanilla Ice Cream, 5 lb
Bid Price: $64.99

Isolate Loaded Whey Protein Powder, Strawberry, 4 lb (1.81 kg)
Bid Price: $59.95

Nutricost Whey Protein Isolate (Vanilla) 5LBS - Isolate Protein Powder, Non-GMO
Bid Price: $74.98

Dymatize ISO100 Hydrolyzed 100% Whey Protein Gourmet Vanilla 5 Lbs - EXP 4/25
Bid Price: $50.00

Biosteel Recovery Protein Plus Grass Fed Whey Protein Isolate - Chocolate 8/2025
Bid Price: $19.95

2 PACK Dymatize ISO100 Hydrolyzed Protein Powder, Vanilla, 1.6LB Exp 3/2026
Bid Price: $48.98

Evlution Nutrition 100% Whey Protein 1lb or 5lb - All Flavors
Bid Price: $59.99

NOW FOODS Whey Protein Isolate Unflavored Powder 10 lbs.
Bid Price: $151.50

Premier Protein 100% Whey Protein Powder Vanilla Milkshake. exp 07/26
Bid Price: $23.00

Axe & Sledge Supplements Farm Fed Grass-Fed Whey Protein Isolate, 30 Servings
Bid Price: $35.99

NOW FOODS Whey Protein Isolate Creamy Chocolate Powder 10 lbs.
Bid Price: $136.54

DYMATIZE ISO100® Hydrolyzed Protein Powder 100% Whey Protein Isolate 5 lb
Bid Price: $99.99

NOW FOODS Whey Protein Isolate Unflavored Powder 1.2 lb.
Bid Price: $30.25

Optimum Nutrition Gold Standard 100% Whey Protein Powder, Vanilla 5.47lbs
Bid Price: $63.00

Optimum Nutrition Gold Standard100% Whey Protein Powder- Double Rich Chocolate.
Bid Price: $25.87

Monster Muscle Whey Protein Powder, 5lb
Bid Price: $56.99

Evlution Nutrition 100% Whey Protein Isolate 1lb or 5lb - All Flavors
Bid Price: $79.99

Dymatize Nutrition ISO100 Hydrolyzed 100% Whey Protein Isolate, Protein Powder
Bid Price: $76.29

Muscle Whey Protein Powder, 10LB Colossallabs
Bid Price: $104.99

Clean Simple Eats Whey Protein Powder Choc Brownie 30 Servings
Bid Price: $45.00

Naked Whey Vanilla Protein Powder - Only 3 Ingredients - Grass Fed Whey Protein
Bid Price: $40.99

Dymatize ISO100 100% Whey Protein Isolate, Dunkin’ Cappuccino, 1.3 lb (610g)
Bid Price: $29.99

Optimum Nutrition Gold Standard Whey Protein Powder, 5.64 Extreme Milk Chocolate
Bid Price: $59.99

Six Star Whey Isolate Protein Powder-Decadent Chocolate 1.40 Lbs Exp 06/2025
Bid Price: $14.99

Dymatize ISO100 Hydrolyzed Whey Isolate Protein Powder Dunkin Glazed Donut
Bid Price: $21.99

Nutricost Whey Protein Isolate (Chocolate Peanut Butter, 5 Pound) Protein Powder
Bid Price: $74.98

NVS 100% Pure Organic Instantized Whey Protein Isolate 90% (Unflavored) USA
Bid Price: $179.95

Nutricost Whey Protein Isolate (Unflavored) 2LBS - Protein Powder
Bid Price: $41.98

Nutricost Whey Protein Isolate (Chocolate) 5 LBS - Non-GMO & Gluten Free
Bid Price: $74.98

DYMATIZE ISO100® Hydrolyzed Protein Powder 100% Whey Protein Isolate 20 Servings
Bid Price: $44.99

9/24 Dymatize Iso 100 Whey Protein Powder Isolate, Gourmet Chocolate, 3 Lbs
Bid Price: $31.99
Prices shown here may not be final. Check eBay for final selling price plus any applicable tax, import or shipping charges. These are not our products for sale. Please check all details directly with the eBay seller before committing to any purchase.
What is Whey Protein Isolate?
Whey protein isolate is a highly refined form of whey protein, processed to remove the majority of fat and lactose. This results in a protein powder with a higher protein concentration (typically 90% or more) and a lower carbohydrate and fat content compared to whey protein concentrate. It is an ideal option for anyone looking for a lean protein source.
Key Benefits of Whey Protein Isolate

- High Protein Content: Provides a very high percentage of protein, ideal for muscle growth and repair.
- Low in Fat and Carbs: Contains minimal fat and carbohydrates, which makes it ideal for low carb diets.
- Low in Lactose: A good option for those with lactose sensitivities.
- Rapid Absorption: Quickly digested and absorbed, which means it is perfect for post-workout recovery.
- Supports Lean Muscle: Helps to promote lean muscle gains without extra calories from fat and carbs.
Who Should Use Whey Protein Isolate?
Whey protein isolate is excellent for anyone looking for a high-quality, lean protein source. It's especially beneficial for athletes, bodybuilders, and individuals who are following a low-carb diet or have lactose sensitivities. It is a very popular option for those who want the best form of whey protein.
Top Whey Protein Isolate Brands
Whey protein isolate is a popular product with a reputation for being high in protein, and low in carbs and fats. Here are some of the best brands available in the UK.
1. Myprotein
Myprotein is a brand with a wide range of products including whey protein isolate. They have many options available to choose from. Visit their About Us page for more details.
2. Optimum Nutrition
Optimum Nutrition are a very well known brand with high quality products. Their whey protein isolate is a popular choice for many users. You can explore their products on their About Us page.
3. Bulk
Bulk offer a range of products including whey protein isolate with a focus on value and sustainability. Find out more about them on their About Us page.
4. The Protein Works
The Protein Works provide a range of high quality products including whey protein isolate. Their products focus on quality and efficacy. You can see their range on their About Us page.
5. PhD Nutrition
PhD Nutrition focus on performance-based nutrition products including their highly rated whey protein isolates. Learn more about them on their About Us page.
Whey protein isolate is a good choice if you need a lean source of protein. Explore our products on the home page for more information.
The Ultimate Guide to Whey Protein Isolate: Benefits, Uses, and More
Whey protein isolate is one of the most popular supplements in the world, and has a reputation for being a very effective way of adding protein to your diet. This article will explore the different aspects of whey protein isolate, and help you decide if it is right for you.
What is Whey Protein Isolate? Whey protein isolate is a highly purified form of whey protein, which is produced as a byproduct of cheese manufacturing. It undergoes a process to filter out most of the fat, lactose and other non-protein components, resulting in a powder that is generally 90% protein or higher. This makes it a very good choice for those who want a high-protein and low carb and low-fat product.
How is it made? The whey protein is extracted from milk during the cheese manufacturing process, and is then processed using a number of different processes including cross-flow microfiltration and ion-exchange. These processes help to separate the protein from the fats and lactose. The result is a powder that is high in protein, and low in other compounds.
Key Benefits of Whey Protein Isolate The primary benefit is that it is a very effective way of adding protein to your diet. Here are some key advantages:
- High Protein Content: Whey protein isolate is a great source of protein, usually containing 90% or more, which means you can get the protein you need without any of the other extra compounds.
- Low in Lactose: The processing will remove almost all of the lactose from the whey, making it an ideal option for those who are lactose intolerant.
- Rapid Absorption: The protein is easily absorbed by your body which makes it perfect for post-workout recovery. This will mean that the protein will be available to muscles for repair and growth in a short space of time.
- Promotes lean muscle growth: Because it is low in carbs and fats, it can help to promote lean muscle growth without unwanted weight gain.
Who Should use Whey Protein Isolate? Whilst it is an effective form of protein, it might not be suitable for all users. Here are some specific groups that it may be beneficial for:
- Athletes and Bodybuilders The rapid absorption and high protein content means that it is very beneficial for those who want to improve recovery and promote lean muscle growth.
- Those with Lactose Sensitivities: The low lactose level means it is a great choice for those who have lactose sensitivities.
- Those on a low carb diet: Due to the low levels of fat and carbs it is an excellent option for those who are restricting their carb intake.
- Those looking for a high-quality source of protein: If you need to get a high dose of protein without any added compounds, then whey protein isolate is ideal.
How to Use Whey Protein Isolate? Whey protein isolate can be mixed into a variety of drinks and food, and can be used to add extra protein to your diet. Here are a few examples:
- Post-Workout Recovery: Add to a shaker with water or milk for a quick protein boost immediately after training.
- In Smoothies: Add to a smoothie to increase the protein and make it a more filling option.
- In Recipes: You can also add it to recipes such as pancakes, yogurt, or muffins.
Potential Side Effects Whilst whey protein isolate is generally considered safe for most people, it is very important to only use the recommended serving amounts. Overconsumption can lead to digestive issues, or other health problems.
In conclusion, whey protein isolate is an excellent way of adding protein to your diet, and by being sensible with your approach you will see the benefits, without any negative impacts.
The Importance of Weighing Whey Protein Isolate
While scooping might be convenient, weighing whey protein isolate ensures you are getting the precise amount you need for optimal results. Here's why:
- Accurate Dosage: Using a scale will allow you to get the most out of the supplement, and you can be certain you are having the correct amount of protein.
- Consistency: By using scales you will be able to have a consistent amount of protein for every serving. This is important for anyone who is on a diet, or is looking to track their nutrition effectively.
- Efficiency: If you don't use scales you might be over or under scooping, which might mean you are consuming too much or too little protein.
How to Weigh Whey Protein Isolate
- Gather your Supplies: You will need a digital scale that measures in grams, a container, and your tub of whey protein isolate.
- Set up the Scale: Place the scale on a flat surface and turn it on. Ensure it is set to measure in grams, and place your container on the scale, using the tare button, if available.
- Add the Powder: Carefully add the protein to the container until the scale reads your desired dosage.
- Confirm the weight: Check that the dosage is correct, and add the protein to your bottle or food.
Weighing your whey protein isolate ensures you are maximizing its benefits and achieving your goals more effectively. Whilst it might take some more time initially, it is worth the extra effort if you want to get the best results.
To explore our other options, check out our range of whey protein concentrate or our whey protein hydrolysate.