10 Best Milk Protein Isolate in The UK
Last updated on 04/09/2025
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Optimum Nutrition Platinum Hydro Whey, Hydrolysed Whey Protein Isolate Powder with Essential Amino Acids, Glutamine and BCAA, Super Strawberry Flavour, 40 Servings, 1.6 kg
Optimum Nutrition
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Optimum Nutrition
Optimum Nutrition Platinum Hydro Whey, Hydrolysed Whey Protein Isolate Powder with Essential Amino Acids, Glutamine and BCAA, Super Strawberry Flavour, 40 Servings, 1.6 kg
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Why We Love It
- Supports strength training and fitness.
- Fastest digesting protein included.
- Purest form of Whey.
Main Highlights
- Pure hydrolysed whey protein isolate powder designed to support your strength training, CrossFit routine, gym workout, and fitness sessions
- Each serving contains 30 g of the FASTEST DIGESTING PROTEIN for the growth and maintenance of muscle mass*
- Carefully formulated with 9.5 g of both naturally occurring BCAAs and added amino acids
- Hydrolysed whey protein isolates deliver the PUREST FORM OF WHEY PROTEIN with minimal amounts of fat and sugars; ONLY 1 g OF SUGARS OR LESS and no more than 0.5 g of fat per serving
- An EASY TO MIX, the any-time protein formula that provides an extra source of protein throughout the day, in three varieties: Milk Chocolate, Super Strawberry, and Vanilla Bean
- For a tasty protein shake add 1 scoop of the whey isolate to 260 ml of water and shake, stir, or blend well
- *Source: Official Journal of the European Union - COMMISSION REGULATION (EU) No 432/2012
Value for Money
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PBN Premium Body Nutrition - Whey Isolate Protein Powder, Chocolate - 75 Servings, 2.27 kg (Pack of 1)
Premium Body Nutrition
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Premium Body Nutrition
PBN Premium Body Nutrition - Whey Isolate Protein Powder, Chocolate - 75 Servings, 2.27 kg (Pack of 1)
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Why We Love It
- High-quality Whey Protein isolate.
- Promotes muscle growth maintenance.
- Supports bone health.
Main Highlights
- Chocolate - Whey Protein-ISOLATE with 87Percentage+ Protein, 2.27 kg, jar with a delicious Banana flavour
- A jar with a delicious Banana flavour
- Protein contributes to growth in muscle mass and to the maintenance of normal bones.
- 1-Protein contributes to a growth in muscle mass.
- 2-Protein contributes to the maintenance of normal bones.
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Optimum Nutrition Gold Standard Whey Muscle Building and Recovery Protein Powder With Naturally Occurring Glutamine and Amino Acids, Extreme Milk Chocolate, 71 Servings, 2.27kg, Packaging May Vary
Optimum Nutrition
14% OffFree Shipping
Optimum Nutrition
Optimum Nutrition Gold Standard Whey Muscle Building and Recovery Protein Powder With Naturally Occurring Glutamine and Amino Acids, Extreme Milk Chocolate, 71 Servings, 2.27kg, Packaging May Vary
14% OffFree Shipping
Why We Love It
- Supports fitness journey from start.
- Quick absorption for muscle gain.
- Variety of sizes, flavors available.
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
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Applied Nutrition Critical Whey Protein Powder 2kg - High Protein Powder, Protein Milkshake, Muscle Building Supplement with BCAAs & Glutamine (2kg - 67 Servings) (White Choco Bueno)
Applied Nutrition
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Applied Nutrition
Applied Nutrition Critical Whey Protein Powder 2kg - High Protein Powder, Protein Milkshake, Muscle Building Supplement with BCAAs & Glutamine (2kg - 67 Servings) (White Choco Bueno)
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Why We Love It
- Promotes muscle building and maintenance.
- Quick and easy preparation.
- Assures highest quality for athletes.
Main Highlights
- BUILD & MAINTAIN MUSCLE: Applied Nutrition protein powder is an excellent way to build up your muscles when you do strength training. Protein is an essential part of your diet to help maintain muscle mass, so drinking the shake as recommended will help you to retain your muscle development.
- EASY TO PREPARE: This high protein powder mixes incredibly well with water or low-fat milk. You can shake it up when you are running late or on the go in no time.
- TESTED FOR ATHLETES: Every ingredient within this product is carefully selected and monitored through our quality management system to bring you the highest level of assurance. Final products are produced and packaged in an ISO 22000, BRC, GMP and Halal accredited laboratory.
- VARIETY OF FANTASTIC FLAVOURS: You can pick from multiple available flavours for your protein milkshake. Never again will you have to drink tasteless protein supplements.
- GREAT SOURCE OF PROTEIN: Applied Nutrition Critical Whey powder is a wonderful source of protein. The combination of Whey Protein Concentrate, Whey Protein Isolate and Hydrolysed Whey Protein makes the perfect muscle building supplement.
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Reflex Nutrition Isolate Pro - 83% Premium Protein from Whey Isolate Protein Powder - Fast Absorption, Low Lactose, Low Fat, Low Sugar Protein Shake - Muscle Gain (Chocolate, 1.8kg, 60 Servings)
Reflex
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Reflex
Reflex Nutrition Isolate Pro - 83% Premium Protein from Whey Isolate Protein Powder - Fast Absorption, Low Lactose, Low Fat, Low Sugar Protein Shake - Muscle Gain (Chocolate, 1.8kg, 60 Servings)
25% OffFree Shipping
Why We Love It
- High protein purity achieved.
- Ideal for muscle gain.
- Effortless mixing and absorption.
Main Highlights
- Premium Protein Excellence: Reflex Isolate Pro is made from whey isolate stripped of most fats and carbs, ensuring high protein purity - Ideal for increasing protein intake without extra calories and suitable for those with lactose intolerance
- Optimal Nutritional Values: Each 30g scoop of whey protein isolate provides 25g of protein, Less than 0.5g of fat and Less than 0.5g of carbs - The ideal choice for those seeking muscle gain and lean mass maintenance with minimal calorie intake (103 kcal per serving)
- Effortless Mixing: This whey protein powder blends smoothly into water or milk for silky protein shakes and can be easily incorporated into various culinary creations, serving as a post workout muscle growth aid or a healthy protein snack
- Optimised for Rapid Recovery: Reflex grass fed whey protein powder is ultra-filtered for fast absorption, making it as a post workout protein snack - With whey protein isolate, it's the highest purity whey to maximise muscle growth
- Manufactured in an informed sport registered facility: Reflex Isolate Pro whey protein supplement is vegetarian-friendly, Halal-certified, free from hormones, and with no added sugars, artificial colours or soy protein - Contains soy derivatives
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Optimum Nutrition Gold Standard 100% Whey Muscle Building and Recovery Protein Powder With Naturally Occurring Glutamine and BCAA Amino Acids, Extreme Milk Chocolate Flavour, 28 Servings, 896 g
Optimum Nutrition
23% OffFree Shipping
Optimum Nutrition
Optimum Nutrition Gold Standard 100% Whey Muscle Building and Recovery Protein Powder With Naturally Occurring Glutamine and BCAA Amino Acids, Extreme Milk Chocolate Flavour, 28 Servings, 896 g
23% OffFree Shipping
Why We Love It
- Supports muscle gain and recovery.
- Low in sugar and fat.
- Variety of flavors available.
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
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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
Optimum Nutrition
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Optimum Nutrition
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
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Organic Whey Protein Powder (600g) - Grass Fed Unflavoured Organic Protein Powder by TheHealthyTree Company - Low Carb Natural Protein for Muscle Growth & Recovery
TheHealthyTree Company
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TheHealthyTree Company
Organic Whey Protein Powder (600g) - Grass Fed Unflavoured Organic Protein Powder by TheHealthyTree Company - Low Carb Natural Protein for Muscle Growth & Recovery
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Why We Love It
- Sourced from sustainable farming practices.
- Ideal for post-workout recovery.
- Promotes easy digestion.
Main Highlights
- GRASS FED WHEY PROTEIN POWDER - Our organic whey protein powder is sourced from grass-fed, pasture raised cows in Germany, to the highest European Soil Association standards (DA25404). This ensures you're getting the best possible fuel for your body, while supporting sustainable farming practices.
- UNFLAVOURED & NO ADDITIVES - Enjoy the natural, unflavoured creamy taste of our whey protein powder, which is perfect for mixing into your smoothies, shakes, and baking recipes. Unlike many alternatives, our whey is hormone free, gluten free, soy free, Non-GMO and has absolutely no sweeteners or added sugar - halle…MOO-jah.
- 80% PURE WHEY PROTEIN - Our organic protein powder contains a high concentration of naturally occurring amino acids and BCAAs. In addition to being a fantastic vegetarian protein source, it dissolves easily in water and is ideal for post-workout recovery and muscle growth.
- THE RIGHT WAY TO WHEY - Use our protein powder organic to make great tasting low carb keto baking recipes like flapjacks and pancakes. In the morning or after the gym, just mix 1 or 2 tablespoons into your shaker with water, milk or nut milk. If you’ve got more time, blend with frozen fruit to make a delicious smoothie that’s packed with vitamins.
- EASY DIGESTION - We’re proud to say that our whey passes through a leading ceramic microfiltration system to create the freshest, creamiest natural whey protein on the planet. Not only is it kinder to the environment, it dissolves well and is kind to your digestive system too, without the uncomfortable bloated feeling of some other protein powders.
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Myprotein Clear Whey Protein Isolate Powder - Peach Tea - 488g - 20 Servings - Cool and Refreshing Whey Protein Shake Alternative - 20g Protein and 4g BCAA per Serving
Myprotein
29% OffFree Shipping
Myprotein
Myprotein Clear Whey Protein Isolate Powder - Peach Tea - 488g - 20 Servings - Cool and Refreshing Whey Protein Shake Alternative - 20g Protein and 4g BCAA per Serving
29% OffFree Shipping
Why We Love It
- Light and refreshing protein supplement.
- Packed with 20g protein, BCAAs, glutamine.
- Informed Choice certified quality.
Main Highlights
- Light and refreshing. Ideal product in the protein supplements category for warmer weather due to the juice-like flavour and consistency - no milky taste or texture
- Fruity flavours mean the product tastes great, but it also contains 20g of protein per serving, along with 4,5g BCAAs and 3g of glutamine; making this one of the most complete clear whey drinks around
- Clear Whey Isolate is not just another protein shake. With high-quality hydrolysed whey protein isolate and a light and refreshing alternative — this is more like juice than a milky protein shake.
- Clear Whey from Myprotein is Informed Choice certified. With Informed Choice, you can feel confidentthat ourClear Whey Isolateis manufactured to the highest standards.
- With just 0.1g of fat, 0.3g of sugar, and less than 90 calories per shake, it’s the perfect way to stay hydrated throughout the day — without undoing all of your hard work.
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Applied Nutrition Beef XP - Clear Hydrolysed Beef Protein Isolate, Fruit Juice Style, Dairy Free Beef Protein Powder, Lactose Free, Zero Sugar, Low Fat, 1.8kg - 60 Servings (Cherry & Apple)
Applied Nutrition
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Applied Nutrition
Applied Nutrition Beef XP - Clear Hydrolysed Beef Protein Isolate, Fruit Juice Style, Dairy Free Beef Protein Powder, Lactose Free, Zero Sugar, Low Fat, 1.8kg - 60 Servings (Cherry & Apple)
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Why We Love It
- Lactose-free protein option.
- Assists muscle mass growth.
- Zero sugar, low fat.
Main Highlights
- DAIRY AND LACTOSE-FREE PROTEIN: Ideal for those who are lactose intolerant or avoid dairy, providing a clean, high-quality protein source for muscle growth and recovery.
- CONTRIBUTES TO THE GROWTH OF MUSCLES MASS: Beef protein specially formulated for its high protein content. With 27.7g of protein per serving, it assists the growth of muscle. Comprehensive amino acid profile provides all essential amino acids for healthy bodily functions.
- PERFECT MIXING AND AMAZING TASTE: Beef protein comes in 7 different amazing flavours to suit taste preferences. When added to milk or water, it mixes well for a smooth and delicious drink.
- ZERO SUGAR, LOW FAT: Perfect for low-carb and keto diets, this protein powder is free of sugar and low in fat, supporting lean muscle building without unwanted calories.
- HALAL CERTIFIED: This protein beef isolate has been produced in a manner that adheres to strict halal guidelines ensuring suitability for those following a halal diet while providing high-quality, clean beef protein isolate.