10 Best Raw Whey Isolate Protein Powder in The UK

Last updated on 12/08/2025

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Best Choice

9.7

Exceptional

Premium Body Nutrition

PBN - Premium Body Nutrition - Whey-Isolate Protein Powder, 2.27kg, Strawberry - 75 Servings

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Why We Love It

Enhances athletic performance significantly.
Delicious Strawberry flavor treat.
Promotes better muscular recovery.

Main Highlights

Each serving contains 27 g of protein
Suitable for vegetarians
Each Pack contains 75 Servings
Premium Quality Ingredients
Each serving contains 27 g of protein
Suitable for vegetarians
Each Pack contains 75 Servings

Bulk Pea Protein Isolate Powder, Vegan Protein Shake, 2.5 kg, 83 Servings, Packaging May Vary

11% OffFree Shipping

Why We Love It

Supports plant-based training diets.
Smooth, naturally soluble formula.

Main Highlights

Our premium plant protein shake, made with 100% pure pea protein
Packed with at least 23 g plant protein and 4 g naturally occurring BCAA (branched chain amino acids) per serving
This highly-soluble formula creates a naturally smooth shake
Low in sugar and low in fat, this deliciously creamy shake is perfect for supporting a plant-based training diet
Available in a range of delicious flavours, this is your perfect training partner

Optimum Nutrition ON Gold Standard 100% Isolate Pure Whey Protein, Naturally Occurring BCAAs and Glutamine, Pre and Post Workout, Chocolate Flavour, 31 Servings, 930 g

20% OffFree Shipping

Why We Love It

Supports lean muscle gain.
Ultra-filtered for exceptional purity.
Perfect for workout recovery.

Main Highlights

Gold Standard whey protein powder contains 25g (83%) of high quality 100% pure whey isolate protein blend per serving to suport lean muscle gain*
Whey protein isolate is ultra-filtered for exceptional purity; it supports the growth and maintenance of muscle mass & the maintenance of normal bones*
Informed Choice certified ON whey protein powder contains low sugar (0.3 g), low fat (0.4 g) and 5.5 g of naturally occurring essential amino acids, BCAAs, per serving
This high protein powder is perfect as a protein shake, pre workout and post workout for both men and women; comes in vanilla, chocolate and strawberry flavours
To create perfect protein drinks, add 30 g (1 rounded scoop) to 200 ml of cold water and mix well

PINK SUN Whey Protein Isolate Powder Unflavoured 1kg (92% Protein) Soy Free Grass Fed Gluten Free No Additives Vegetarian Undenatured Non GM Unsweetened Natural Whey UK 1000g

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Why We Love It

Premium quality ensures exceptional results.
Suitable for many diets.
Ultra-filtered for pure protein.

Main Highlights

Premium quality, SOY FREE, undenatured whey protein isolate powder 1kg
From grass-fed hormone-free cows' milk with 92% protein
Ultra-filtered to remove carbohydrate, fat and lactose
Unflavoured natural taste - no added sugar or artificial sweeteners
Gluten free, suitable for vegetarian and wholefood diets

Bulk Pure Whey Protein Isolate, Protein Powder Shake, Unflavoured, 1 kg, Packaging May Vary

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Why We Love It

High-protein formula for training.
Low in sugar and fat.
Available in delicious flavours.

Main Highlights

Level up your training with Pure Whey Isolate, an advanced high-protein formula
Powered by at least 24 g protein and 5 g naturally occurring BCAA (branched chain amino acids) per serving
An extra level of filtration produces an advanced formula that's low in sugar and fat
A premium form of protein to help manage the macros and get those gains
Available in a range of delicious flavours, this is your perfect training partner

The Bulk Protein Company

SERIOUS PROTEIN – Protein Powder – 4kg – Low Carb – Supports Lean Muscle Growth – Recovery Supplement - The Bulk Protein Company - 133 Servings (Cookies & Cream)

20% OffFree Shipping

Why We Love It

Promotes muscle growth and recovery.
Efficient for controlling calories.
Impressive taste and value.

Main Highlights

✅ 24g PROTEIN PER SERVING TO BUILD LEAN MUSCLE - A convenient way to help meet your daily protein needs. Use after training to quickly heal micro-tears in muscle tissues, speed up recovery and reduce muscle soreness for STRONGER and BIGGER muscles over time.
✅ HIGH PROTEIN, LOW CALORIES, LOW CARBS - Only 114 Calories Per Serving! Serious Protein powder is 80% Protein with Low Carbs, Sugars, and Fats. Ideal for adding LEAN MASS! Perfect to use as a meal replacement or part of a calorie-controlled diet, while trying to lean out, or for those simply looking to support MUSCLE GAINS.
✅ HIGH QUALITY INGREDIENTS - Premium blend of Whey Protein Concentrate, Micellar Casein and Soy Protein Isolate, a combination of slow and fast releasing proteins for total protein synthesis throughout the day. Also contains GLUTAMINE PEPTIDE, essential for muscle recovery and more bioavailable than regular glutamine, helping aid MUSCLE GROWTH.
✅ PROTEIN SHAKE THAT TASTES GREAT - Add 1 rounded scoop (30g) to 250ml of cold water or skimmed milk and shake well to create a great tasting Protein Shake! Can also be enjoyed in smoothies, with oats or when added to a pancake mix. For best results consume 1 serving (30g) one to three times per day
✅ EXCELLENT VALUE - More than 6 weeks supply in one tub, when following our recommended servings. Comes with scoop for measurements.

PINK SUN Organic Whey Protein Concentrate Powder Unflavoured 1kg (80% Protein with BCAA) Soy Free Grass Fed Gluten Free No Additives Vegetarian Undenatured Non GM Certified Bio UK

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Why We Love It

Pure, certified organic protein.
Promotes glutathione production.
Perfect for vegetarians.

Main Highlights

CERTIFIED ORGANIC, 100% pure, undenatured whey protein concentrate powder 1kg
Unflavoured natural taste - no additives, no added sugar or artificial sweeteners - Make your own delicious high protein creamy milkshakes
From grass-fed, rBGH hormone-free organic cows' milk with 80% protein
Contains essential branch chain amino acids (BCAA) and immunoglobulins to assist in glutathione production
Certified organic by the Soil Association - Gluten free, soy free, suitable for vegetarian and wholefood diets

Myprotein Impact Whey Protein Powder. Muscle Building Supplements For Everyday Workout With Essential Amino Acid And Glutamine. Vegetarian, Low Fat And Carb Content - Natural Vanilla, 1kg

4% Off

Why We Love It

High protein content delivers results.
Little fat and carbs included.
Supports muscle growth and maintenance.

Main Highlights

EVERYDAY PROTEIN - Premium whey packed with 21g of protein per serving, for the everyday protein you need from a quality source. Can be used by both men and women, perfect for everyone, whatever your fitness goals
VARIETY OF FLAVOURS - Get yours in over 40, indulgent, mouth-watering flavours, including some delicious favourites such as Chocolate, Vanilla, and Strawberry Cream. If you prefer a more natural taste, we’ve got a range of stevia flavoured options too!
EASY TO USE - It’s fast absorbing, so we recommend adding 1 large scoop (25g) to 150-250ml of water or milk 30-60 minutes post-workout — but it’s ideal any time for a convenient way to get the protein you need
LOW IN SUGAR AND FAT - Vegetarian friendly with just 1.9g of fat, 1g of carbs, and at just 103 calories per serving, our Impact Whey Protein makes the perfect shake for everyone
QUALITY ASSURANCE - There’s simply not another protein powder out there that delivers the same outstanding quality and value. And that’s because at MyProtein, our products are created in our own state-of-the-art production facility. Our popular Impact Whey Protein provides over 80% protein per serving, so you can be assured of its quality

Optimum Nutrition Gold Standard Whey Muscle Building and Recovery Protein Powder With Naturally Occurring Glutamine and Amino Acids, French Vanilla Crème, 76 Servings, 2.28kg, Packaging May Vary

13% OffFree Shipping

Why We Love It

Best-selling globally trusted protein powder.
Promotes muscle gain and recovery.
Various sizes and delectable flavors.

Main Highlights

Optimum Nutrition’s Gold Standard 100% WHEY is the world’s best-selling protein powder* designed to support your fitness journey from day one
FAST-ABSORBING whey protein with whey protein isolate as the main ingredient helps with muscle gain and supports recovery* after every training session
The ON whey protein formula is Informed Choice certified, contains naturally-occurring BCAAs and GLUTAMINE and is LOW IN SUGAR and fat
Available in a VARIETY OF SIZES and FLAVOURS: double rich chocolate, banana cream, vanilla ice cream, unflavored protein powder and more
EASY & CONVENIENT: mix one scoop in 180-240 ml of cold water; best enjoyed in the morning or/and during the 30 minutes just before or immediately after training
*Source: Euromonitor International Limited; Consumer Health 2023 edition, Sports Protein Powder category, % retail value shares, 2022 data
** Source EFSA Journal 2010;8(10):1811; 2011;9(6):2203

Optimum Nutrition Gold Standard Whey Protein, Muscle Building Powder with Naturally Occurring Glutamine and Amino Acids, Double Rich Chocolate, 29 Servings, 899 g, Packaging May Vary

25% OffFree Shipping

Why We Love It

Supports muscle gain and recovery.
Certified, low-sugar protein formula.
Variety of sizes, flavors.

Main Highlights

Optimum Nutrition’s Gold Standard 100% WHEY is the world’s best-selling protein powder* designed to support your fitness journey from day one.
FAST-ABSORBING whey protein with whey protein isolate as the main ingredient helps with muscle gain and supports recovery* after every training session.
The ON whey protein formula is Informed Choice certified, contains naturally-occurring BCAAs and GLUTAMINE and is LOW IN SUGAR and fat.
Available in a VARIETY OF SIZES and FLAVOURS: double rich chocolate, banana cream, vanilla ice cream, unflavored protein powder and more.
EASY & CONVENIENT: mix one scoop in 180-240 ml of cold water; best enjoyed in the morning or/and during the 30 minutes just before or immediately after training.
*Source: Euromonitor International Limited; Consumer Health 2023 edition, Sports Protein Powder category, % retail value shares, 2022 data.
** Source EFSA Journal 2010;8(10):1811; 2011;9(6):2203.

8.7

Excellent

Save 25%

We scanned 602 products

We reviewed these offers relevant to the Raw Whey Isolate Protein Powder within online retailers such as Amazon, eBay and other local retailers, ensuring we covered all major brands and models. The products we selected come from trusted brands like Premium Body Nutrition, Bulk, Optimum Nutrition, PINK SUN, The Bulk Protein Company, Myprotein, all of which have a reputation for consistently delivering high-quality products that users love and innovative approaches for function & design.

For the best Raw Whey Isolate Protein Powder in the market, we considered we took a deep dive into 3011 online reviews , focusing on elements like user satisfaction, performance in real-world conditions, and long-term reliability. Our ranking also evaluates each review’s relevancy, authenticity, up-to-dateness and depth so that the comparison is more sound.

We concluded that:

The clear winner of our analysis is PBN - Premium Body Nutrition - Whey-Isolate Protein Powder, 2.27kg, Strawberry - 75 Servings. We love many things about this product by Premium Body Nutrition. What sets it apart from the competition is Enhances athletic performance significantly, Delicious Strawberry flavor treat, Promotes better muscular recovery.
The best value product for most shoppers and where user satisfaction is continuously the highest is Bulk Pea Protein Isolate Powder, Vegan Protein Shake, 2.5 kg, 83 Servings, Packaging May Vary by Bulk based on online reviews by bloggers, experts and online shoppers.
The biggest bargain at the moment for Raw Whey Isolate Protein Powder and the best cost-to-value ratio is Optimum Nutrition Gold Standard Whey Protein, Muscle Building Powder with Naturally Occurring Glutamine and Amino Acids, Double Rich Chocolate, 29 Servings, 899 g, Packaging May Varyat Optimum Nutrition with a 25% discount.
Our list of the best Raw Whey Isolate Protein Powder is updated regularly to reflect new releases and changes in product availability, so be sure to check back often for the latest rankings and discounts.

10 Best Raw Whey Isolate Protein Powder in The UK

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PINK SUN Whey Protein Concentrate Powder Unflavoured 1kg (82% Protein) Soy Free Grass Fed Gluten Free Vegetarian Undenatured Non GM Unsweetened Everyday Whey UK 1000g

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We scanned 602 products

We concluded that: