Prices and ratings below were checked on Amazon UK on 21 October 2026 and are refreshed regularly. Amazon prices change daily — the live price is always the one on Amazon. As an Amazon Associate we earn from qualifying purchases; it never changes the order of this table.
Every mainstream whey protein sold on Amazon UK in one table — tub price, price per kg and real owner ratings, checked on the date shown. Whey concentrate is the cheapest per gram; isolates cost more and only matter if you need lower lactose or fewer carbs.
Whey Protein UK — all 22 products
Prices checked on Amazon UK: 21 October 2026. Prices change daily — the live price is shown on Amazon.
#1
PhD Nutrition Diet Whey High Protein Lean Matrix
80 Servings
£59.99 £30.00/kg price per kg
- High protein: packed with protein to help maintain muscle mass, this low-calorie powder is ideal for use duri…
- Premium whey protein powder: enriched with grass-fed whey protein, it provides the body with essential amino …
- Informed protein: always know what’s inside. the protein content of this powder is tested and verified, givin…
#2
Bulk Pure Whey Protein Powder
2.5kg
£77.99 £31.20/kg price per kg
- Delivers 22g or 23g of high-quality protein per serving (depending on flavour), sourced from premium whey pro…
- A complete protein source containing all essential amino acids, including 5g of naturally occurring BCAAs per…
- Designed to mix easily with water or milk, creating a smooth and enjoyable shake, Low in sugar making it suit…
#3
Optimum Nutrition Gold Standard 100% Whey Protein Powder
2.27 kg
£98.00 £44.55/kg price per kg
- SUPPORT MUSCLE GROWTH AND REPAIR: Designed for goal-driven athletes and fitness lovers, fast-absorbing Gold S…
- 24g PROTEIN PER SERVING: Our award-winning formula contains naturally occurring BCAAs and glutamine, plus 24 …
- #1 INGREDIENT - WHEY PROTEIN ISOLATE: Filtered for extra purity, Whey Protein Isolate is the primary ingredie…
#4
Optimum Nutrition Gold Standard 100% Isolate Whey Protein Powder
930g
£59.29 £63.75/kg price per kg
- Gold Standard whey protein powder contains 25g (83%) of high quality 100% pure whey isolate protein blend per…
- Whey protein isolate is ultra-filtered for exceptional purity; it supports the growth and maintenance of musc…
- Informed Choice certified ON whey protein powder contains low sugar (0.3 g), low fat (0.4 g) and 5.5 g of nat…
#5
Naked Chocolate Whey Protein Powder
25g
£21.99 £48.87/kg price per kg
- ONLY THREE INGREDIENTS: 100% Grass Fed Pure Whey Protein, Chocolate, and Coconut Sugar. Naked Chocolate Whey …
- ALL NATURAL WHEY: Our Chocolate Grass Fed Whey is sourced from small dairy farms to bring you non-denatured w…
- MAXIMUM NUTRITION: 25g of Protein, 5g of Sugar, 8g of Carbs, 160 Calories, and 6g of BCAAs (branched-chain am…
#6
Dymatize ISO 100 Hydrolyzed Gourmet Chocolate 100 2264g
2264g
£127.99 £56.53/kg price per kg
- THE TOP-QUALITY RECIPE of our whey isolate protein powder delivers 25 g of the highest-quality protein per se…
- HYDROLYSIS breaks the whey protein isolate into smaller amino acid chains, which makes it exceptionally quick…
- THE FAT AND SUGAR-FREE protein powder contains less than 116 calories per serving (mixed with water), making …
#7
TheHealthyTree Company Organic Whey Protein Powder
600g
£37.94 £63.23/kg price per kg
- GRASS FED WHEY PROTEIN POWDER - Our organic whey protein powder is sourced from grass-fed, pasture raised cow…
- UNFLAVOURED & NO ADDITIVES - Enjoy the natural, unflavoured creamy taste of our whey protein powder, which is…
- 80% PURE WHEY PROTEIN - Our organic protein powder contains a high concentration of naturally occurring amino…
#8
Warrior Whey Protein Powder 500g High Protein Shake
500g
£19.99 £39.98/kg price per kg
- UP TO 36G HIGH PROTEIN WHEY FOR MUSCLE GROWTH & STRENGTH – Fuel your training with Warrior’s premium whey pro…
- LOW CARB, LOW FAT, LOW SUGAR FORMULA FOR LEAN RESULTS – Warrior whey nutrition protein is crafted as a low ca…
- SMOOTH-MIXING SHAKE WITH NO LUMPS – Customers love the smooth, lump-free texture of this whey protein powder,…
#9
Warrior Bulk Whey Protein Powder 2kg High Protein Muscle Building Shake
2kg
£74.49 £37.25/kg price per kg
- BULK WHEY PROTEIN POWDER — A larger 1kg or 2kg protein powder format for regular training, high-protein shake…
- LOW CARB, LOW FAT, LOW SUGAR FORMULA FOR LEAN RESULTS – Warrior whey nutrition protein is crafted as a low ca…
- SMOOTH-MIXING SHAKE WITH NO LUMPS – Customers love the smooth, lump-free texture of this whey protein powder,…
#10
USN BlueLab Whey Protein Powder I Chocolate Caramel I 2kg
2kg
£58.88 £29.44/kg price per kg
- USN Whey Protein powder: Blue Lab USN Protein Powder contains premium Whey Isolate, Whey Hydrolysate and Whey…
- Premium women's and men's supplements: USN diet supplements offer proven benefits, when taken alongside a bal…
- Tasty post workout recovery drink: USN Whey Protein isolate supplement blend, for optimal muscle growth and s…
#11
Protein Works
1.2kg
£35.76 £29.80/kg price per kg
- GROUNDBREAKING PROTEIN SHAKE: Whey Protein 360 - GOLD (previously known as Whey Protein 360) is designed to b…
- PHASED PROTEIN RELEASE: Innovative blend enabling an advanced phased release of nutrients into the body. With…
- ADDED DIGEZYME: Contains all 9 essential amino acids to provide a complete amino acid profile with the inclus…
#12
Applied Nutrition Critical Whey Protein Powder
24g
£22.50 £27.27/kg price per kg
- 24G PROTEIN PER SERVING - Critical Whey delivers 24g of high-quality protein per shake to support lean muscle…
- ADVANCED WHEY BLEND - A fast absorbing formula made with whey protein concentrate, isolate, and hydrolysed wh…
- RICH IN BCAAs & GLUTAMINE - Naturally high in essential amino acids to aid recovery, reduce fatigue, and supp…
#13
PhD Whey Protein Powder
1kg
£36.99 £36.99/kg price per kg
- High Protein Everyday Support: Each serving delivers 25g of whey protein, making it a practical way to increa…
- Protein for Muscle Mass Goals: Protein contributes to the growth and maintenance of muscle mass, supporting a…
- With Bacillus Coagulans Added: Includes 1 billion CFU of Bacillus Coagulans in a convenient whey protein powd…
#14
Applied Nutrition Diet Whey
450g
£13.00 £28.89/kg price per kg
- HIGH PROTEIN BLEND: Applied Nutrition’s Diet Whey Protein Powder combines CLA, L-Carnitine, Green Tea, Whey P…
- LOW CARBS & SUGAR: Diet Whey is one of the most advanced weight management supplements on the market. Using A…
- CHOICE OF DELICIOUS FLAVOURS: Protein powder does not have to be tasteless. Applied Nutrition offer 4 differe…
#15
Myprotein Impact Whey Protein Powder
30 Servings
£37.47 £41.63/kg price per kg
- 23g Whey Protein Powder – Each serving delivers high-quality whey protein to support lean muscle growth, main…
- Certified Clean, Athlete Trusted – Myprotein Impact Whey Protein is Informed Choice certified and batch-teste…
- Smart Nutrition with Less – Just 114 calories, 1.9g of fat, and 1.8g of carbs per serving make this diet whey…
#16
Isopure Unflavoured Whey Protein Isolate Powder
25 g
£30.00 £68.97/kg price per kg
- MADE WITH INGREDIENTS YOU NEED, NOTHING YOU DON'T: Only 2 ingredients, including 100% pure whey protein isola…
- 25 G HIGH PROTEIN PER SERVING: Delivers 25g protein from 100% Whey Protein Isolate to complement your daily r…
- LOW SUGAR AND LOW FAT: Isopure Unflavoured Whey Isolate delivers high-quality protein with minimal sugar and …
#17
Per4m Whey Protein Powder
2010g
£62.99 £31.34/kg price per kg
- 🏆 AWARD WINNING WHEY PROTEIN - We've been given the 'Best Tasting Protein Powder 2025' accolade by The Teleg…
- 🥗 LOW IN SUGAR, NATURALLY LOW IN GLUTEN - and formulated with Amino Acids to Support Lean Muscle Growth
- ❤️ MADE WITH PREMIUM INGREDIENTS - Formulated with 21-22g of High-Quality Bio-Available Milk and Whey Protein…
#18
SCI-MX Ultra Whey Protein Muscle Building & Recovery Protein Powder…
800G
£23.97 £29.96/kg price per kg
- ⚡ DEVELOP LEAN MUSCLE WITH ULTRA WHEY. This protein contains whey protein concentrate, hydrolysate and isola…
- 🏋️♂️ BENEFITS: Whey protein powders digests quickly and this blend is rich in branched-chain amino acids (BC…
- 🍫 HOW & WHEN TO USE: Add 2 x level scoops (45g) with 200ml of cold water. Shake for 10 seconds with our shak…
#19
Applied Nutrition ISO-XP Whey Protein Isolate
£78.26 £43.48/kg price per kg
- Ultra-Pure Whey Protein Isolate (WPI) – 95% Protein Content - Delivers over 21g of high-quality whey protein …
- Low Carb & Sugar-Free – Ideal for Keto & Lean Muscle - Contains less than 1g of carbs per serving, making it …
- BCAA & EAA Enriched – Faster Muscle Recovery - Packed with naturally occurring branched-chain amino acids (BC…
#20
Myprotein Impact Whey Isolate Proteins Supplement
2.5 kg
£86.19 £34.48/kg price per kg
- One of the purest whey protein powder
- Made from milk from pasture cows
- Helps to build and repair new muscle
#21
Kinetica Sports Whey Protein Powder
2.27 Kg
£89.99 £39.64/kg price per kg
- PREMIUM PROTEIN POWDER FOR EVERYDAY NUTRITION: Enjoy the versatility of Kinetica Sports Unflavoured Whey Prot…
- SUPPORTS LEAN MUSCLE & RECOVERY: With just 117 kcal per serving, Kinetica Sports Whey Protein is an excellent…
- 76 SERVINGS OF HIGH-QUALITY PROTEIN: Each 2.27kg tub provides 76 servings, delivering 23g of protein per 30g …
#22
Bulk Pure Whey Isolate
2kg
£89.99 £45.00/kg price per kg
- Each serving provides 24–26g of ultra-filtered whey protein isolate, delivering a high-quality source of prot…
- Formulated with minimal sugars and carbohydrates, this whey isolate is ideal for those following low-carb or …
- This protein powder is suitable for vegetarian diets, providing a clean, pure protein source to fit your life…
How to use this table
Ratings are the real Amazon UK owner ratings at the time of checking and the price per kg column is the fairest way to compare value across tub sizes. Click any product to see the live price, current offers and the full reviews on Amazon.
Related reviews and guides
- Best Whey Protein UK 2026: Honest Review & Comparison
- Warrior Whey Protein Review UK (2026): What the 36g Protein Claim Really Means
- Best Cheap Protein Powder UK (2026): Quality on a Budget
- Applied Nutrition Critical Whey Review UK (2026): Best Budget Protein?
- Optimum Nutrition Gold Standard Whey Review UK (2026): Is It Worth It?
- Whey Concentrate vs Isolate vs Hydrolysed: What Is the Difference? (2026)
- Applied Nutrition Micellar Casein Review UK (2026): Cheaper Than Most Whey?
Last checked: October 2026.