Best Whey Protein Isolate Unflavoured of 2026

Last updated on 04/04/2026
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1
Bulk Hydrolysed Whey Protein Isolate, Protein Shake, Unflavoured, 2.5 g

Bulk Hydrolysed Whey Protein Isolate, Protein Shake, Unflavoured, 2.5 g

Bulk
Why we love it
  • Fast-absorbing whey protein formula.
  • High BCAA and protein content.
  • Minimal sugar and fat.
Main Highlights
  • A fast-absorbing whey protein formula
  • Packed with at least 24 g protein and 5 g BCAA per serving
  • This high-performing supplement absorbs faster than standard proteins, reaching your muscles in record time
  • With minimal sugar and fat, this is a winning formula for top-level training
  • Choose your flavour or keep it simple with Unflavoured
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9.8
Exceptional
9.8
Exceptional
Bulk

Bulk Hydrolysed Whey Protein Isolate, Protein Shake, Unflavoured, 2.5 g

Why we love it
  • Fast-absorbing whey protein formula.
  • High BCAA and protein content.
  • Minimal sugar and fat.
Main Highlights
  • A fast-absorbing whey protein formula
  • Packed with at least 24 g protein and 5 g BCAA per serving
  • This high-performing supplement absorbs faster than standard proteins, reaching your muscles in record time
  • With minimal sugar and fat, this is a winning formula for top-level training
  • Choose your flavour or keep it simple with Unflavoured
Show More
Value for Money
2
Bulk Pure Whey Protein Isolate, Protein Powder Shake, Unflavoured, 2.5 kg, Packaging May Vary

Bulk Pure Whey Protein Isolate, Protein Powder Shake, Unflavoured, 2.5 kg, Packaging May Vary

Bulk
Why we love it
  • High quality and premium protein.
  • Promotes healthy, balanced diet.
  • Variety of delicious flavors.
Main Highlights
  • Each serving provides 24–26g of ultra-filtered whey protein isolate, delivering a high-quality source of protein to support muscle growth, repair, and lean muscle maintenance.
  • Formulated with minimal sugars and carbohydrates, this whey isolate is ideal for those following low-carb or high-protein diets, helping you fuel your body efficiently without unnecessary additives.
  • This protein powder is suitable for vegetarian diets, providing a clean, pure protein source to fit your lifestyle.
  • Designed to dissolve quickly and smoothly in water or milk, available in a range of delicious flavours that make it easy and enjoyable to meet your daily protein needs.
  • Whether it’s pre-workout, post-workout, or a convenient protein boost during the day, Bulk Pure Whey Isolate 90 supports your nutrition goals and active lifestyle.
Show More
9.6
Superb
9.6
Superb
Bulk

Bulk Pure Whey Protein Isolate, Protein Powder Shake, Unflavoured, 2.5 kg, Packaging May Vary

Why we love it
  • High quality and premium protein.
  • Promotes healthy, balanced diet.
  • Variety of delicious flavors.
Main Highlights
  • Each serving provides 24–26g of ultra-filtered whey protein isolate, delivering a high-quality source of protein to support muscle growth, repair, and lean muscle maintenance.
  • Formulated with minimal sugars and carbohydrates, this whey isolate is ideal for those following low-carb or high-protein diets, helping you fuel your body efficiently without unnecessary additives.
  • This protein powder is suitable for vegetarian diets, providing a clean, pure protein source to fit your lifestyle.
  • Designed to dissolve quickly and smoothly in water or milk, available in a range of delicious flavours that make it easy and enjoyable to meet your daily protein needs.
  • Whether it’s pre-workout, post-workout, or a convenient protein boost during the day, Bulk Pure Whey Isolate 90 supports your nutrition goals and active lifestyle.
Show More
3
Optimum Nutrition Gold Standard 100% Whey Muscle Building and Recovery Protein Powder With Naturally Occurring Glutamine and BCAA Amino Acids, Unflavoured, 30 Servings, 900 g

Optimum Nutrition Gold Standard 100% Whey Muscle Building and Recovery Protein Powder With Naturally Occurring Glutamine and BCAA Amino Acids, Unflavoured, 30 Servings, 900 g

Optimum Nutrition
13% Off
Why we love it
  • Supports muscle gain and recovery.
  • Low in sugar and fat.
  • Taste variety and easy preparation.
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
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9.5
Superb
9.5
Superb
Optimum Nutrition

Optimum Nutrition Gold Standard 100% Whey Muscle Building and Recovery Protein Powder With Naturally Occurring Glutamine and BCAA Amino Acids, Unflavoured, 30 Servings, 900 g

13% Off
Why we love it
  • Supports muscle gain and recovery.
  • Low in sugar and fat.
  • Taste variety and easy preparation.
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
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4
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

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

PINK SUN
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
Show More
9.4
Superb
9.4
Superb
PINK SUN

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

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
Show More
5
Optimum Nutrition ON Gold Standard 100% Isolate Pure Whey Protein, Naturally Occurring BCAAs and Glutamine, Pre and Post Workout, Vanilla Flavour, 31 Servings, 930 g

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

Optimum Nutrition
13% Off
Why we love it
  • High in quality whey protein.
  • Support muscle growth and maintenance.
  • Low in sugar and fat.
Main Highlights
  • Gold Standard whey protein powder contains 25g (83 percent) of high quality 100 percent 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 and 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
Show More
9.2
Superb
9.2
Superb
Optimum Nutrition

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

13% Off
Why we love it
  • High in quality whey protein.
  • Support muscle growth and maintenance.
  • Low in sugar and fat.
Main Highlights
  • Gold Standard whey protein powder contains 25g (83 percent) of high quality 100 percent 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 and 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
Show More
6
Nutristrength Unflavoured Whey Protein Isolate Powder | Pure Whey Protein Isolate Powder 1kg with Sunflower Lecithin | Made in The UK (1kg)

Nutristrength Unflavoured Whey Protein Isolate Powder | Pure Whey Protein Isolate Powder 1kg with Sunflower Lecithin | Made in The UK (1kg)

Nutristrength
Why we love it
  • High quality, high protein.
  • Great taste and versatile.
  • No artificial additives.
Main Highlights
  • High quality and high protein with 90% protein yield, sweetened with natural sweeteners
  • Great tasting - simply mix with 200ml of water or in protein balls, smoothies or porridge
  • Whey derived from grass-fed cows, high in calcium & made in the UK
  • A source of essential amino acids with no artificial additives or ingredients
Show More
9.1
Superb
9.1
Superb
Nutristrength

Nutristrength Unflavoured Whey Protein Isolate Powder | Pure Whey Protein Isolate Powder 1kg with Sunflower Lecithin | Made in The UK (1kg)

Why we love it
  • High quality, high protein.
  • Great taste and versatile.
  • No artificial additives.
Main Highlights
  • High quality and high protein with 90% protein yield, sweetened with natural sweeteners
  • Great tasting - simply mix with 200ml of water or in protein balls, smoothies or porridge
  • Whey derived from grass-fed cows, high in calcium & made in the UK
  • A source of essential amino acids with no artificial additives or ingredients
Show More
7
Whey Isolate Protein Powder with Lions Mane & Cordyceps | 23g Protein + 8000mg Mushrooms + 6.3g BCAA | Nootropic Protein for Focus, Energy & Recovery | 30 Servings | Sugar Free Rich Chocolate

Whey Isolate Protein Powder with Lions Mane & Cordyceps | 23g Protein + 8000mg Mushrooms + 6.3g BCAA | Nootropic Protein for Focus, Energy & Recovery | 30 Servings | Sugar Free Rich Chocolate

Functional Performance Co.
Why we love it
  • Boosts performance and focus.
  • Rich in amino acids.
  • Clean ingredients with no fillers.
Main Highlights
  • PERFORMANCE + FOCUS IN ONE SCOOP – “Brains with Gains” fuses 25g of fast-absorbing whey isolate protein powder (23g protein & 6.3g BCAA) with 8,000mg of functional mushrooms to fuel both body and mind after training. This dose is in line with existing research (and ensures no mushroom taste) but can also be safely stacked with other Funct/onal Performance products.
  • DUAL-EXTRACTED MUSHROOM COMPLEX – Each serving delivers 4,000mg Lion’s Mane (Hericium erinaceus), traditionally used and studied for focus and cognitive support, plus 4,000mg Cordyceps sinensis, traditionally used to support energy metabolism and endurance (dry mushroom equivalent before extraction).
  • GOLD STANDARD WHEY ISOLATE PROTEIN POWDER – Whey isolate protein powder is the gold standard whey form and provides a rich source of complete amino acids and naturally occurring BCAAs, supporting muscle growth and recovery after exercise. Mass gainer but low in lactose, carbs, and fat for fast absorption and lean results.
  • PREMIUM INGREDIENTS, CLEAN LABEL – Made with dual-extracted mushrooms and clean-label ingredients for optimal purity, taste, and bioavailability — no artificial fillers or added sugars. >15% beta-glucan content in the combined mushroom blend (>30% for the Lion's Mane Portion)
  • EASY + SMART FUNCTIONAL NUTRITION – A simple way to add Lion’s Mane and Cordyceps to your daily routine. Includes access to a complementary tracking app to monitor progress and results. Smooth, rich chocolate flavour, sugar-free and crafted for high-performance living.
Show More
9.0
Superb
9.0
Superb
Functional Performance Co.

Whey Isolate Protein Powder with Lions Mane & Cordyceps | 23g Protein + 8000mg Mushrooms + 6.3g BCAA | Nootropic Protein for Focus, Energy & Recovery | 30 Servings | Sugar Free Rich Chocolate

Why we love it
  • Boosts performance and focus.
  • Rich in amino acids.
  • Clean ingredients with no fillers.
Main Highlights
  • PERFORMANCE + FOCUS IN ONE SCOOP – “Brains with Gains” fuses 25g of fast-absorbing whey isolate protein powder (23g protein & 6.3g BCAA) with 8,000mg of functional mushrooms to fuel both body and mind after training. This dose is in line with existing research (and ensures no mushroom taste) but can also be safely stacked with other Funct/onal Performance products.
  • DUAL-EXTRACTED MUSHROOM COMPLEX – Each serving delivers 4,000mg Lion’s Mane (Hericium erinaceus), traditionally used and studied for focus and cognitive support, plus 4,000mg Cordyceps sinensis, traditionally used to support energy metabolism and endurance (dry mushroom equivalent before extraction).
  • GOLD STANDARD WHEY ISOLATE PROTEIN POWDER – Whey isolate protein powder is the gold standard whey form and provides a rich source of complete amino acids and naturally occurring BCAAs, supporting muscle growth and recovery after exercise. Mass gainer but low in lactose, carbs, and fat for fast absorption and lean results.
  • PREMIUM INGREDIENTS, CLEAN LABEL – Made with dual-extracted mushrooms and clean-label ingredients for optimal purity, taste, and bioavailability — no artificial fillers or added sugars. >15% beta-glucan content in the combined mushroom blend (>30% for the Lion's Mane Portion)
  • EASY + SMART FUNCTIONAL NUTRITION – A simple way to add Lion’s Mane and Cordyceps to your daily routine. Includes access to a complementary tracking app to monitor progress and results. Smooth, rich chocolate flavour, sugar-free and crafted for high-performance living.
Show More
8
Bulk Pure Whey Protein Isolate, Protein Powder Shake, Unflavoured, 500 g, Packaging May Vary

Bulk Pure Whey Protein Isolate, Protein Powder Shake, Unflavoured, 500 g, Packaging May Vary

Bulk
26% Off
Why we love it
  • Premium form aids macro management.
  • Low in sugar and fat.
  • Supports gains with high protein.
Main Highlights
  • Each serving provides 24–26g of ultra-filtered whey protein isolate, delivering a high-quality source of protein to support muscle growth, repair, and lean muscle maintenance.
  • Formulated with minimal sugars and carbohydrates, this whey isolate is ideal for those following low-carb or high-protein diets, helping you fuel your body efficiently without unnecessary additives.
  • This protein powder is suitable for vegetarian diets, providing a clean, pure protein source to fit your lifestyle.
  • Designed to dissolve quickly and smoothly in water or milk, available in a range of delicious flavours that make it easy and enjoyable to meet your daily protein needs.
  • Whether it’s pre-workout, post-workout, or a convenient protein boost during the day, Bulk Pure Whey Isolate 90 supports your nutrition goals and active lifestyle.
Show More
8.9
Excellent
8.9
Excellent
Bulk

Bulk Pure Whey Protein Isolate, Protein Powder Shake, Unflavoured, 500 g, Packaging May Vary

26% Off
Why we love it
  • Premium form aids macro management.
  • Low in sugar and fat.
  • Supports gains with high protein.
Main Highlights
  • Each serving provides 24–26g of ultra-filtered whey protein isolate, delivering a high-quality source of protein to support muscle growth, repair, and lean muscle maintenance.
  • Formulated with minimal sugars and carbohydrates, this whey isolate is ideal for those following low-carb or high-protein diets, helping you fuel your body efficiently without unnecessary additives.
  • This protein powder is suitable for vegetarian diets, providing a clean, pure protein source to fit your lifestyle.
  • Designed to dissolve quickly and smoothly in water or milk, available in a range of delicious flavours that make it easy and enjoyable to meet your daily protein needs.
  • Whether it’s pre-workout, post-workout, or a convenient protein boost during the day, Bulk Pure Whey Isolate 90 supports your nutrition goals and active lifestyle.
Show More
9
Isopure Unflavoured Whey Protein Isolate Powder, High in Protein with 25 g per Serve, Low in Sugar, No Artificial Flavours or Sweeteners, Made with Only 2 Ingredients, 435 g

Isopure Unflavoured Whey Protein Isolate Powder, High in Protein with 25 g per Serve, Low in Sugar, No Artificial Flavours or Sweeteners, Made with Only 2 Ingredients, 435 g

Isopure
20% Off
Why we love it
  • Pure ingredients for pure nutrition.
  • High protein to fuel your day.
  • Versatile for any recipe.
Main Highlights
  • MADE WITH INGREDIENTS YOU NEED, NOTHING YOU DON'T: Only 2 ingredients, including 100% pure whey protein isolate because when it comes to looking and feeling good, LESS IS MORE
  • 25 G HIGH PROTEIN PER SERVING: Delivers 25g protein from 100% Whey Protein Isolate to complement your daily routine and support your protein intake
  • LOW SUGAR AND LOW FAT: Isopure Unflavoured Whey Isolate delivers high-quality protein with minimal sugar and fat - an effortless way to boost your intake without unecessary extras
  • NO ARTIFICIAL FLAVOURS OR SWEETENERS*: Enjoy an unflavoured protein powder with simple ingredients and no artificial flavours, just great-tasting nutrition
  • EASY TO BLEND, BAKE, OR COOK: Blend into smoothies, use in baking to make protein brownies, or add to recipes for a protein-rich meal; however you take it, Isopure Whey Protein Isolate fits effortlessly into your lifestyle; *Contains Steviol Glycosides from Stevia, with no artificial sweeteners
Show More
8.8
Excellent
8.8
Excellent
Isopure

Isopure Unflavoured Whey Protein Isolate Powder, High in Protein with 25 g per Serve, Low in Sugar, No Artificial Flavours or Sweeteners, Made with Only 2 Ingredients, 435 g

20% Off
Why we love it
  • Pure ingredients for pure nutrition.
  • High protein to fuel your day.
  • Versatile for any recipe.
Main Highlights
  • MADE WITH INGREDIENTS YOU NEED, NOTHING YOU DON'T: Only 2 ingredients, including 100% pure whey protein isolate because when it comes to looking and feeling good, LESS IS MORE
  • 25 G HIGH PROTEIN PER SERVING: Delivers 25g protein from 100% Whey Protein Isolate to complement your daily routine and support your protein intake
  • LOW SUGAR AND LOW FAT: Isopure Unflavoured Whey Isolate delivers high-quality protein with minimal sugar and fat - an effortless way to boost your intake without unecessary extras
  • NO ARTIFICIAL FLAVOURS OR SWEETENERS*: Enjoy an unflavoured protein powder with simple ingredients and no artificial flavours, just great-tasting nutrition
  • EASY TO BLEND, BAKE, OR COOK: Blend into smoothies, use in baking to make protein brownies, or add to recipes for a protein-rich meal; however you take it, Isopure Whey Protein Isolate fits effortlessly into your lifestyle; *Contains Steviol Glycosides from Stevia, with no artificial sweeteners
Show More
10
Myprotein Impact Whey Protein Powder | Unflavoured - 1 kg | 23 g Whey Protein Per Serving with BCAAs | Builds Lean Muscle, Speeds Recovery | Low Fat & Carbs | Vegetarian | Trusted by Athletes

Myprotein Impact Whey Protein Powder | Unflavoured - 1 kg | 23 g Whey Protein Per Serving with BCAAs | Builds Lean Muscle, Speeds Recovery | Low Fat & Carbs | Vegetarian | Trusted by Athletes

Myprotein
Why we love it
  • Impressive protein value per serving.
  • Low calories count.
  • Abundance of flavors choices.
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
Show More
8.8
Excellent
8.8
Excellent
Myprotein

Myprotein Impact Whey Protein Powder | Unflavoured - 1 kg | 23 g Whey Protein Per Serving with BCAAs | Builds Lean Muscle, Speeds Recovery | Low Fat & Carbs | Vegetarian | Trusted by Athletes

Why we love it
  • Impressive protein value per serving.
  • Low calories count.
  • Abundance of flavors choices.
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
Show More