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Optimum Nutrition Serious Mass Cookies & Cream 2727 g
Weight GainerSet Consisting of: 1 x boxFlavor: Cookies & Cream1267 calories per serving50 g whey protein per serving3 grams creatine per serving25 vitamins and mineralsContents: 2,727 g
£40.00
Shipping: Free
Amazon
Optimum Nutrition Serious Mass Banana 5455 g
Weight GainerSet Consisting of: 1 x bagFlavour: Strawberries1267 calories per serving50 g whey protein per serving3 grams creatine per serving25 vitamins and mineralsContents: 5,455 g
£58.54
Optimum Nutrition Serious Mass Banana 2727 g
Weight GainerSet Consisting of: 1 x boxFlavour: Banana1267 calories per serving50 g whey protein per serving3 grams creatine per serving25 vitamins and mineralsContents: 2,727 g
£40.00
Shipping: Free
Amazon
Optimum Nutrition Serious Mass Strawberry 2727 g
Weight GainerSet Consisting of: 1 x boxFlavour: Strawberries1269 calories per serving50 g whey protein per serving3 grams creatine per serving25 vitamins and mineralsContents: 2,727 g
£40.00
Shipping: Free
Amazon
Optimum Nutrition Serious Mass Chocolate Peanut Butter 5455 g
Weight GainerSet Consisting of: 1 x pouchFlavor: Chocolate, Peanut Butter1263 calories per serving50 g whey protein per serving3 grams creatine per serving25 vitamins and mineralsContents: 5,455 g
£60.85
source: Amazon
Optimum Nutrition Serious Mass Vanilla 5455 g
Weight GainerSet Consisting of: 1 x bagFlavour: Vanilla1268 calories per serving50 g whey protein per serving3 grams creatine per serving25 vitamins and mineralsContents: 5,455 g
£58.00
Mammut Nutrition Crash Weight Gainer Powder Chocolate - 4.5 kg - 518 kcal/Shake for Weight gain - 80% carbohydrates - 4-Component Protein - Ideal for Endurance and Performance Athletes FID20677
1410 kcal per 3 shakes Contributing to weight gain high carbohydrate content with 80% carbohydrates (vanilla) Ideal for endurance and competitive athletes Carb complex (3-component) and protein complex (4-component) Including creatine
£61.12
Shipping: Free
Amazon Marketplace - MyFit24
Myprotein Weight Gainer Powder, Chocolate Smooth K3-Q5TV-WLBS
Over 30g protein per serving Staggering 388 calories per serving Sustained energy release over 30g protein per serving staggering 388 calories per serving sustained energy release Directions: Recommended daily dose: 1 serving. Ingredients: GROUND OATS(63%), protein blend( WHEY PROTEIN CONCENTRATE (MILK), MILK PROTEIN CONCENTRATE)(26%), emulsifier( SOY LECITHIN), maltodextrin, cocoa powder, flavourings, sweeteners( sucralose) Item display weight: 5000.0 kilograms Number of items: 1 Allergen information: milk Unit count: 5000000.0 Unit count type: gram
£80.00
Shipping: £6.93
Amazon Marketplace - MNK-260
MUTANT Mass | Muscle Mass Gainer | 1100 Calories, 56g Protein, Whole Food Carbs, BCAAs, and Glutamine | Ultimate Hardcore Weight Gainer Shake | 6800g OPC-PHSQQFR-NEW
Features HARDCORE MASS-BUILDING CALORIES - Delivers an incredible 1,100 nutrient-dense calories per serving to support fast muscle growth and...
£100.00
Shipping: £28.00
OnBuy
Vegan Gainz 4kg - Plant Based Protein Powder - Weight Gainer- 32 Servings & 30g Protein Per Serving - The Bulk Protein Company (Salted Caramel) B08VKNZSHJ
30g PROTEIN PER SERVING TO HELP BUILD MUSCLE - Vegan Friendly Mass Gainer protein powder that contains 30 grams of high quality Plant-based Protein per serving. A convenient and easy way to increase your daily protein intake. 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 PUT ON SIZE AND GAIN MASS - With 479 lean calories per serving, VEGAN GAINZ protein powder is ideal when BULKING. Use as part of a balanced diet to help add body mass and increase weight gain. Contains 77g of carbohydrates which will help your body absorb the protein within, turning it into muscle mass to help towards improving your overall body composition HIGH QUALITY PLANT-BASED PROTEIN - Premium blend of easily digested Pea Protein Isolate, Soy Protein Isolate, Hemp Protein and ultra-fine Oat flour. Perfect for Vegans and Vegetarians or for those who have dairy intolerances. 100% Vegan Friendly and Plant-Based! Contains Soy and Gluten VEGAN PROTEIN SHAKE THAT TASTES GREAT - Chocolate flavour. Add 3 scoops of powder to 400-500ml of cold water or plant milk and mix well to create a great tasting vegan Protein Shake! Can also be enjoyed in smoothies, with oats or when added to a pancake mix. Consume post-training on workout days and between breakfast and lunch on non-workout days EXCELLENT VALUE 4kg TUB WITH 32 SERVINGS - Vegan Gainz is not about fancy packaging, high-carb flavours or the rip-off pricing... it's about amazing value, HUGE protein levels, and incredible results! Over a month's supply when following our recommended serving of 3 scoops per day. Comes with scooper for measurements
£39.20
Shipping: Free
Amazon
Warrior Mass Gainer Protein Powder 5kg, 18 Servings – 1000 kcal High Calorie Weight Gainer with Whey & Casein – 61g Protein Shake Plus Glutamine – Muscle Growth Supplements – Double Chocolate B07R2CL9ZX
BUILT FOR SERIOUS WEIGHT GAIN – Each serving delivers around 1000 kcal, making this formula ideal for hard gainers and anyone struggling to consume enough calories through food alone. Developed as one of the most effective high calorie drinks for weight gain, it supports bulking and size goals with a dense, performance-focused formula. This is a reliable weight gainer for skinny people looking to increase daily calorie intake and support muscle mass. MULTI-SOURCE PROTEIN FOR MUSCLE GROWTH – Each serving of Warrior Protein Powder Mass Gainer provides 61g of protein from a carefully balanced blend of whey protein powder and micellar casein protein powder, delivering fast absorption after training alongside sustained amino acid release over time. This combination makes it ideal for daily protein shakes that help promote muscle growth, recovery, and maintenance, whether used post-workout or as a high-protein addition to your nutrition plan. HIGH-CALORIE CARB MATRIX WITH REAL OATS – Formulated with a carbohydrate-rich blend featuring fine milled oats, a real carb source that supports sustained energy release and glycogen replenishment during intense training. The inclusion of oats naturally creates a thicker texture and oat-based aroma, reflecting the high calorie density required for serious bulking and weight gain, not thin or lightly flavoured shakes. ENRICHED WITH GLUTAMINE FOR RECOVERY – Includes added glutamine to support post-training recovery, help reduce muscle breakdown, and contribute to normal immune function during intense training periods. Each serving combines fast and slow-digesting proteins with high calories to support sustained muscle recovery and performance between sessions. This balanced support makes the formula suitable for regular use during demanding bulking phases and as part of effective muscle building supplements. PREMIUM QUALITY ASSURED & EASY TO MIX – Manufactured in GMP-certified facilities and free from artificial colours and preservatives, ensuring consistent quality and reliability. Available in multiple flavours to suit your taste preferences, this bulking protein powder features a high-calorie, oat-based formula that is naturally thick. Best mixed with water or milk, or blended for a smoother consistency. Ideal for use post-workout or between meals to support daily calorie and high protein intake.
£49.99
Shipping: Free
Amazon
MUTANT Mass | Muscle Mass Gainer | 1100 Calories, 56g Protein, Whole Food Carbs, BCAAs, and Glutamine | Ultimate Hardcore Weight Gainer Shake | 6800g | Strawberry Banana P1134
HARDCORE MASS-BUILDING CALORIES – Delivers an incredible 1,100 nutrient-dense calories per serving to support fast muscle growth and strength gains. ADVANCED PROTEIN FORMULA – Includes whey protein isolate, hydrolyzed whey, micellar casein, and milk protein concentrate to power recovery and build lean mass. ELITE WHOLE-FOOD CARB SOURCES – Packed with complex carbohydrates from sweet potato, rolled oats, and waxy maize starch to provide clean, long-lasting energy. AMINO ACID & RECOVERY SUPPORT – Features 36g of essential amino acids (EAAs), including 10.4g Glutamine and 12.2g BCAAs, for muscle repair and growth. ENGINEERED FOR EXTREME RESULTS – Designed for athletes looking to smash plateaus, this gainer provides quality macros without unnecessary fillers.
£68.87
Shipping: Free
Amazon Marketplace - PowerBody
MUTANT Mass | Muscle Mass Gainer | 1100 Calories, 56g Protein, Whole Food Carbs, BCAAs, and Glutamine | Ultimate Hardcore Weight Gainer Shake | 6800g | Vanilla Ice Cream MUTA-0085
HARDCORE MASS-BUILDING CALORIES – Delivers an incredible 1,100 nutrient-dense calories per serving to support fast muscle growth and strength gains. ADVANCED PROTEIN FORMULA – Includes whey protein isolate, hydrolyzed whey, micellar casein, and milk protein concentrate to power recovery and build lean mass. ELITE WHOLE-FOOD CARB SOURCES – Packed with complex carbohydrates from sweet potato, rolled oats, and waxy maize starch to provide clean, long-lasting energy. AMINO ACID & RECOVERY SUPPORT – Features 36g of essential amino acids (EAAs), including 10.4g Glutamine and 12.2g BCAAs, for muscle repair and growth. ENGINEERED FOR EXTREME RESULTS – Designed for athletes looking to smash plateaus, this gainer provides quality macros without unnecessary fillers.
£66.99
Shipping: Free
Amazon Marketplace - Monstersupplements
USN Hyperbolic Mass Weight Gainer Protein Powder | Dutch Chocolate | 6kg | 1100+ Calories | High Calorie Muscle Mass Gainer | 60g Protein + Creatine | Bulk Weight Gain for Hard Gainers Usnhyperbolicchoc
Our best mass gainer yet: Our best-tasting mass gainer is for those who want to increase their muscle mass, but don't want to compromise on the taste of their protein drink. High calorie bulk powder: With up to 1183 calories our all-in-one mass and weight gainer is ideal for individuals who struggle to gain muscle mass and want a fast-acting, easy-mixing and effective formula. Amazing taste, great results: The improved formula of our delicious chocolate flavour mass gainer contains natural cocoa, with a smoother taste - all delivered with less Sugar. A weight gainer with nutrition: Our mass protein powder contains a massive 60g of protein per serving, partnered with 7.5g of Creatine and 18 vitamins and minerals (B12, B6, C, Magnesium, Iron) to help you be at your best. For best results: To get the best results from Hyperbolic Mass, take 1 servings daily, either after training or as a snack between meals. Simply mix 4 scoops (300g) of the protein powder with 900ml of cold water and enjoy.
£49.95
Shipping: Free
Amazon
The Bulk Protein Company, SERIOUS GAINZ - Whey Protein Powder - Weight Gain, Mass Gainer - 30g Protein Powders (White Chocolate, 5kg) B06Y2YTB8B
HIGH-CALORIE MASS GAIN FORMULA WITH ~27G PROTEIN PER SERVING – SERIOUS GAINZ by The Bulk Protein Company delivers approximately 460 calories, 27g protein and 74g carbs per serving, helping support a consistent calorie surplus. Designed for hardgainers and anyone looking to increase size and strength, it supports muscle recovery, training performance and steady weight gain when combined with a structured nutrition plan. SUPPORTS MUSCLE GROWTH & POST-WORKOUT RECOVERY – Each serving provides a balanced blend of protein and carbohydrates to replenish energy after training and support lean muscle growth. The combination of soy protein, whey isolate, casein and oat flour delivers both fast and sustained amino acid release, helping refuel muscles, restore glycogen levels and maintain a high daily protein intake. MIXES BEST WITH MILK FOR A SMOOTHER, MORE ENJOYABLE SHAKE – As a bulking protein powder, SERIOUS GAINZ can be prepared with water or milk, though many users prefer milk for a smoother, richer and more consistent texture. Adding liquid first, shaking thoroughly or using a blender helps reduce clumps and creates a creamier shake that’s easier to drink during heavy bulking phases. SMOOTH, SWEET FLAVOUR EXPERIENCE YOU CAN ENJOY DAILY – This mass gainer delivers a rich, dessert-style taste that makes each shake enjoyable as part of your daily bulking routine. Available in flavours such as Chocolate, Cookies & Cream, Vanilla, Strawberry and Banana, it suits both classic and indulgent preferences. FILLING FORMULA DESIGNED TO SUPPORT A DAILY CALORIE SURPLUS – This mass gainer delivers a dense, satisfying shake that helps maintain daily calorie targets during bulking phases, supporting consistent nutrition intake.
£39.99
Shipping: Free
Amazon
The Bulk Protein Company, SERIOUS Gainz - Whey Protein Powder - Weight Gain, Mass Gainer - 30g Protein Powders (White Chocolate, 5kg) (Pack of 2) B0GLPGQPWY
The Bulk Protein Company, SERIOUS Gainz - Whey Protein Powder - Weight Gain, Mass Gainer - 30g Protein Powders (White Chocolate, 5kg) (Pack of 2)
£79.98
Shipping: £4.49
Amazon
Applied Nutrition Critical Mass Professional - Weight Gain Protein Powder, High Calorie Weight Gainer, Lean Mass (2.4kg - 16 Servings) (White Chocolate Raspberry) B0CNW7LXMH
THE UK'S MOST TRUSTED MASS GAINER FOR SERIOUS SIZE & STRENGTH – Critical Mass Professional is the ultimate high-calorie weight gainer, engineered for those who want to bulk up, increase muscle mass, and fuel intense workouts. This mass gainer supplement is trusted by hard gainers, bodybuilders, and athletes looking for serious results. 1,000+ CALORIES PER SERVING – PACKED WITH HIGH-QUALITY PROTEIN & CARBS – Delivers a caloric surplus essential for lean muscle gain. Each serving contains a blend of fast-absorbing and slow-digesting proteins, including ISO-XP Whey Isolate, to maximize muscle recovery and growth. Combined with a premium carbohydrate complex, it helps sustain energy levels and support muscle glycogen replenishment. POWERFUL CREATINE & GLUTAMINE COMPLEX FOR PERFORMANCE & RECOVERY – Enhanced with Creatine Monohydrate, Critical Mass Professional boosts strength, endurance, and muscle power output for high-intensity training. Includes L-Glutamine & Glutamic Acid, key amino acids that aid muscle recovery, reduce fatigue, and support immune function. OPTIMAL WEIGHT GAIN FORMULA FOR HARD GAINERS & ATHLETES – Whether you struggle to put on weight, need extra calories due to intense training, or want to bulk up, this high-calorie gainer provides the perfect macronutrient balance. Ideal as a post-workout shake, meal replacement, or between-meal supplement for continuous muscle fuel. EASY MIXING & DELICIOUS FLAVOURS FOR MAXIMUM ENJOYMENT – Designed for convenience, this instantized protein powder mixes effortlessly in water or milk, creating a smooth, creamy texture with no lumps or grittiness. Available in 6 mouth-watering flavours: Chocolate, Banana, Vanilla, Chocolate Mint, Strawberry, and White Chocolate & Raspberry. TESTED FOR ATHLETES: at Applied Nutrition we carefully select and monitor each product through our quality management system to bring you the highest level of assurance. Critical Mass Professional is no exception and is tested at an ISO 17025 accredited lab.
£36.99
Shipping: Free
Amazon
The Bulk Protein Company, SERIOUS Gainz - Whey Protein Powder - Weight Gain, Mass Gainer - 30g Protein Powders (Cookie & Cream, 5kg) (Pack of 4) B0GQC81HZH
The Bulk Protein Company, SERIOUS Gainz - Whey Protein Powder - Weight Gain, Mass Gainer - 30g Protein Powders (Cookie & Cream, 5kg) (Pack of 4)
£138.32
Shipping: £4.49
Amazon
Dymatize Super Mass Gainer Rich Chocolate 2943g - Weight-Gainer Powder + Carbohydrates, BCAAs and Casein B09PLCG7DP
OUR MASSIVE COMBINATION of creatine, carbohydrates, BCAAs and proteins provides valuable nutrients to meet the particular needs of your bulking phase DEVELOPED SPECIALLY FOR BODYBUILDERS, hardgainers and powerlifters and their specific needs, Protein Weight Gainer provides appropriate calories and nutrients, especially in the bulking phase EVERY SERVING of Super Mass Gainer provides up to 243 g of carbohydrates, 52 g of protein, 11–12 g of BCAAs and 3 g of fine Creapure creatine, as well as five vitamins to help reduce tiredness ACCORDING TO INFORMED CHOICE, every substance in the Mass Gainer powder is of the highest standard, so athletes can rest easy knowing their product is top quality, especially during competitions FOR BEST RESULTS when bulking, mix one serving in 700 ml of water every day after training. The mass gainer protein shake is gluten free and suitable for vegetarians
£49.99
Shipping: Free
Amazon
Vegan Gainz 4kg - Plant Based Protein Powder - Weight Gainer- 32 Servings & 30g Protein Per Serving - The Bulk Protein Company (Chocolate Mint) B217-CM
30g PROTEIN PER SERVING TO HELP BUILD MUSCLE - Vegan Friendly Mass Gainer protein powder that contains 30 grams of high quality Plant-based Protein per serving. A convenient and easy way to increase your daily protein intake. 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 PUT ON SIZE AND GAIN MASS - With 479 lean calories per serving, VEGAN GAINZ protein powder is ideal when BULKING. Use as part of a balanced diet to help add body mass and increase weight gain. Contains 77g of carbohydrates which will help your body absorb the protein within, turning it into muscle mass to help towards improving your overall body composition HIGH QUALITY PLANT-BASED PROTEIN - Premium blend of easily digested Pea Protein Isolate, Soy Protein Isolate, Hemp Protein and ultra-fine Oat flour. Perfect for Vegans and Vegetarians or for those who have dairy intolerances. 100% Vegan Friendly and Plant-Based! Contains Soy and Gluten VEGAN PROTEIN SHAKE THAT TASTES GREAT - Chocolate flavour. Add 3 scoops of powder to 400-500ml of cold water or plant milk and mix well to create a great tasting vegan Protein Shake! Can also be enjoyed in smoothies, with oats or when added to a pancake mix. Consume post-training on workout days and between breakfast and lunch on non-workout days EXCELLENT VALUE 4kg TUB WITH 32 SERVINGS - Vegan Gainz is not about fancy packaging, high-carb flavours or the rip-off pricing... it's about amazing value, HUGE protein levels, and incredible results! Over a month's supply when following our recommended serving of 3 scoops per day. Comes with scooper for measurements
£37.57
Shipping: Free
Amazon
Dymatize Super Mass Gainer Cookies & Cream 2943g - Weight-Gainer Powder + Carbohydrates, BCAAs and Casein B09PL8N1TW
OUR MASSIVE COMBINATION of creatine, carbohydrates, BCAAs and proteins provides valuable nutrients to meet the particular needs of your bulking phase DEVELOPED SPECIALLY FOR BODYBUILDERS, hardgainers and powerlifters and their specific needs, Protein Weight Gainer provides appropriate calories and nutrients, especially in the bulking phase EVERY SERVING of Super Mass Gainer provides up to 243 g of carbohydrates, 52 g of protein, 11–12 g of BCAAs and 3 g of fine Creapure creatine, as well as five vitamins to help reduce tiredness ACCORDING TO INFORMED CHOICE, every substance in the Mass Gainer powder is of the highest standard, so athletes can rest easy knowing their product is top quality, especially during competitions FOR BEST RESULTS when bulking, mix one serving in 700 ml of water every day after training. The mass gainer protein shake is gluten free and suitable for vegetarians
£49.99
Shipping: Free
Amazon
The Bulk Protein Company, SERIOUS Gainz - Whey Protein Powder - Weight Gain, Mass Gainer - 30g Protein Powders (Cookie & Cream, 5kg) (Pack of 3) B0GP76RYX7
The information below applies to each unit in the pack HIGH-CALORIE MASS GAIN FORMULA WITH 30G PROTEIN PER SERVING – SERIOUS GAINZ by The Bulk Protein Company is positioned as one of the high calorie drinks for weight gain, delivering approximately 468 calories, 30g protein and 81g carbs per serving to help hardgainers stay in a consistent calorie surplus. Designed for anyone needing extra calories to increase size and strength, it supports muscle recovery, training performance and progressive weight gain when paired with a structured eating plan. SUPPORTS MUSCLE GROWTH & POST-WORKOUT RECOVERY – Each serving provides a balanced blend of protein and carbohydrates to replenish energy after training and support lean muscle growth. The combination of soy protein powder, whey isolate protein powder, casein protein powder and oat flour delivers both fast and sustained amino acid release, helping refuel muscles, restore glycogen levels and maintain a high daily protein intake for better recovery and improved performance between sessions. MIXES BEST WITH MILK FOR A SMOOTHER, MORE ENJOYABLE SHAKE – As a bulking protein powder, SERIOUS GAINZ can be prepared with water or milk, though many users prefer milk for a smoother, richer and more consistent texture. Adding liquid first, shaking thoroughly or using a blender helps reduce clumps and creates a creamier shake that’s easier to drink during heavy bulking phases. This preparation method makes each serving more enjoyable and supports daily consistency as calorie needs increase. SMOOTH, SWEET FLAVOUR EXPERIENCE YOU CAN ENJOY DAILY – This whey protein powder delivers a rich, dessert-style taste that makes each protein shake enjoyable as part of your daily bulking routine. Available in popular flavours such as Chocolate, Cookies & Cream, Vanilla, Strawberry and Banana, it offers options suited to both classic and dessert-style preferences. Whether you mix it with water or milk, or blend it into oats and smoothies, the flavour stays satisfying across long bulking phases. FILLING FORMULA DESIGNED TO HELP MAINTAIN A DAILY CALORIE SURPLUS – This mass gainer delivers a dense, satisfying shake that helps men and women stay on track with daily calorie targets during bulking phases. Its naturally filling consistency supports a sustained surplus, while starting with smaller servings, adding more liquid or spacing intake can help maintain comfortable, consistent nutrition throughout the day.
£103.74
Shipping: £4.49
Amazon
The Bulk Protein Company, SERIOUS Gainz - Whey Protein Powder - Weight Gain, Mass Gainer - 30g Protein Powders (Cookie & Cream, 5kg) (Pack of 2) B0GLP1J7K8
The Bulk Protein Company, SERIOUS Gainz - Whey Protein Powder - Weight Gain, Mass Gainer - 30g Protein Powders (Cookie & Cream, 5kg) (Pack of 2)
£69.16
Shipping: £4.49
Amazon
Dymatize Super Mass Gainer Gourmet Vanilla 2943g - Weight-Gainer Powder + Carbohydrates, BCAAs and Casein B09PLBNFMK
OUR MASSIVE COMBINATION of creatine, carbohydrates, BCAAs and proteins provides valuable nutrients to meet the particular needs of your bulking phase DEVELOPED SPECIALLY FOR BODYBUILDERS, hardgainers and powerlifters and their specific needs, Protein Weight Gainer provides appropriate calories and nutrients, especially in the bulking phase EVERY SERVING of Super Mass Gainer provides up to 243 g of carbohydrates, 52 g of protein, 11–12 g of BCAAs and 3 g of fine Creapure creatine, as well as five vitamins to help reduce tiredness ACCORDING TO INFORMED CHOICE, every substance in the Mass Gainer powder is of the highest standard, so athletes can rest easy knowing their product is top quality, especially during competitions FOR BEST RESULTS when bulking, mix one serving in 700 ml of water every day after training. The mass gainer protein shake is gluten free and suitable for vegetarians
£49.99
Shipping: Free
Amazon
Applied Nutrition Critical Mass Professional - Weight Gain Protein Powder, High Calorie Weight Gainer, Lean Mass (6kg - 40 Servings) (Strawberry) B0CQ31ZM77
THE UK'S MOST TRUSTED MASS GAINER FOR SERIOUS SIZE & STRENGTH – Critical Mass Professional is the ultimate high-calorie weight gainer, engineered for those who want to bulk up, increase muscle mass, and fuel intense workouts. This mass gainer supplement is trusted by hard gainers, bodybuilders, and athletes looking for serious results. 1,000+ CALORIES PER SERVING – PACKED WITH HIGH-QUALITY PROTEIN & CARBS – Delivers a caloric surplus essential for lean muscle gain. Each serving contains a blend of fast-absorbing and slow-digesting proteins, including ISO-XP Whey Isolate, to maximize muscle recovery and growth. Combined with a premium carbohydrate complex, it helps sustain energy levels and support muscle glycogen replenishment. POWERFUL CREATINE & GLUTAMINE COMPLEX FOR PERFORMANCE & RECOVERY – Enhanced with Creatine Monohydrate, Critical Mass Professional boosts strength, endurance, and muscle power output for high-intensity training. Includes L-Glutamine & Glutamic Acid, key amino acids that aid muscle recovery, reduce fatigue, and support immune function. OPTIMAL WEIGHT GAIN FORMULA FOR HARD GAINERS & ATHLETES – Whether you struggle to put on weight, need extra calories due to intense training, or want to bulk up, this high-calorie gainer provides the perfect macronutrient balance. Ideal as a post-workout shake, meal replacement, or between-meal supplement for continuous muscle fuel. EASY MIXING & DELICIOUS FLAVOURS FOR MAXIMUM ENJOYMENT – Designed for convenience, this instantized protein powder mixes effortlessly in water or milk, creating a smooth, creamy texture with no lumps or grittiness. Available in 6 mouth-watering flavours: Chocolate, Banana, Vanilla, Chocolate Mint, Strawberry, and White Chocolate & Raspberry. TESTED FOR ATHLETES: at Applied Nutrition we carefully select and monitor each product through our quality management system to bring you the highest level of assurance. Critical Mass Professional is no exception and is tested at an ISO 17025 accredited lab.
£59.30
Shipping: Free
Amazon
Dymatize Super Mass Gainer Gourmet Vanilla 2943g | Weight|Gainer Powder + Carbohydrates OPC-PSTF2WZ-NEW
Enhance your daily routine with this high-quality product: Dymatize Super Mass Gainer Gourmet Vanilla 2943g - Weight-Gainer Powder + Carbohydrates,
£122.31
Shipping: Free
OnBuy
Vegan Gainz 4kg - Plant Based Protein Powder - Weight Gainer- 32 Servings & 30g Protein Per Serving - The Bulk Protein Company (Chocolate) B07RTBLG5J
30g PROTEIN PER SERVING TO HELP BUILD MUSCLE - Vegan Friendly Mass Gainer protein powder that contains 30 grams of high quality Plant-based Protein per serving. A convenient and easy way to increase your daily protein intake. 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 PUT ON SIZE AND GAIN MASS - With 479 lean calories per serving, VEGAN GAINZ protein powder is ideal when BULKING. Use as part of a balanced diet to help add body mass and increase weight gain. Contains 77g of carbohydrates which will help your body absorb the protein within, turning it into muscle mass to help towards improving your overall body composition HIGH QUALITY PLANT-BASED PROTEIN - Premium blend of easily digested Pea Protein Isolate, Soy Protein Isolate, Hemp Protein and ultra-fine Oat flour. Perfect for Vegans and Vegetarians or for those who have dairy intolerances. 100% Vegan Friendly and Plant-Based! Contains Soy and Gluten VEGAN PROTEIN SHAKE THAT TASTES GREAT - Chocolate flavour. Add 3 scoops of powder to 400-500ml of cold water or plant milk and mix well to create a great tasting vegan Protein Shake! Can also be enjoyed in smoothies, with oats or when added to a pancake mix. Consume post-training on workout days and between breakfast and lunch on non-workout days EXCELLENT VALUE 4kg TUB WITH 32 SERVINGS - Vegan Gainz is not about fancy packaging, high-carb flavours or the rip-off pricing... it's about amazing value, HUGE protein levels, and incredible results! Over a month's supply when following our recommended serving of 3 scoops per day. Comes with scooper for measurements
£39.99
Shipping: Free
Amazon
The Bulk Protein Company, SERIOUS Gainz - Whey Protein Powder - Weight Gain, Mass Gainer - 30g Protein Powders (Birthday Cake, 5kg) B088P5WQLN
HIGH-CALORIE MASS GAIN FORMULA WITH ~27G PROTEIN PER SERVING – SERIOUS GAINZ by The Bulk Protein Company delivers approximately 460 calories, 27g protein and 74g carbs per serving, helping support a consistent calorie surplus. Designed for hardgainers and anyone looking to increase size and strength, it supports muscle recovery, training performance and steady weight gain when combined with a structured nutrition plan. SUPPORTS MUSCLE GROWTH & POST-WORKOUT RECOVERY – Each serving provides a balanced blend of protein and carbohydrates to replenish energy after training and support lean muscle growth. The combination of soy protein, whey isolate, casein and oat flour delivers both fast and sustained amino acid release, helping refuel muscles, restore glycogen levels and maintain a high daily protein intake. MIXES BEST WITH MILK FOR A SMOOTHER, MORE ENJOYABLE SHAKE – As a bulking protein powder, SERIOUS GAINZ can be prepared with water or milk, though many users prefer milk for a smoother, richer and more consistent texture. Adding liquid first, shaking thoroughly or using a blender helps reduce clumps and creates a creamier shake that’s easier to drink during heavy bulking phases. SMOOTH, SWEET FLAVOUR EXPERIENCE YOU CAN ENJOY DAILY – This mass gainer delivers a rich, dessert-style taste that makes each shake enjoyable as part of your daily bulking routine. Available in flavours such as Chocolate, Cookies & Cream, Vanilla, Strawberry and Banana, it suits both classic and indulgent preferences. FILLING FORMULA DESIGNED TO SUPPORT A DAILY CALORIE SURPLUS – This mass gainer delivers a dense, satisfying shake that helps maintain daily calorie targets during bulking phases, supporting consistent nutrition intake.
£39.99
Shipping: Free
Amazon
Dymatize Super Mass Gainer Gourmet Vanilla 2943g - Weight-Gainer Powder + Carbohydrates, BCAAs and Casein, White OPC-PB95CG9-NEW
Dymatize Super Mass Gainer Gourmet Vanilla 2943g - Weight-Gainer Powder + Carbohydrates, BCAAs and Casein, White
£67.42
Shipping: Free
OnBuy
MUTANT Mass | Muscle Mass Gainer | 1100 Calories, 56g Protein, Whole Food Carbs, BCAAs, and Glutamine | Ultimate Hardcore Weight Gainer Shake | 6800g OPC-PHPYJ6H-NEW
Features HARDCORE MASS-BUILDING CALORIES - Delivers an incredible 1,100 nutrient-dense calories per serving to support fast muscle growth and...
£100.00
Shipping: Free
OnBuy
Vegan Gainz 4kg - Plant Based Protein Powder - Weight Gainer- 32 Servings & 30g Protein Per Serving - The Bulk Protein Company (Banana) B08VKXMMXD
30g PROTEIN PER SERVING TO HELP BUILD MUSCLE - Vegan Friendly Mass Gainer protein powder that contains 30 grams of high quality Plant-based Protein per serving. A convenient and easy way to increase your daily protein intake. 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 PUT ON SIZE AND GAIN MASS - With 479 lean calories per serving, VEGAN GAINZ protein powder is ideal when BULKING. Use as part of a balanced diet to help add body mass and increase weight gain. Contains 77g of carbohydrates which will help your body absorb the protein within, turning it into muscle mass to help towards improving your overall body composition HIGH QUALITY PLANT-BASED PROTEIN - Premium blend of easily digested Pea Protein Isolate, Soy Protein Isolate, Hemp Protein and ultra-fine Oat flour. Perfect for Vegans and Vegetarians or for those who have dairy intolerances. 100% Vegan Friendly and Plant-Based! Contains Soy and Gluten VEGAN PROTEIN SHAKE THAT TASTES GREAT - Chocolate flavour. Add 3 scoops of powder to 400-500ml of cold water or plant milk and mix well to create a great tasting vegan Protein Shake! Can also be enjoyed in smoothies, with oats or when added to a pancake mix. Consume post-training on workout days and between breakfast and lunch on non-workout days EXCELLENT VALUE 4kg TUB WITH 32 SERVINGS - Vegan Gainz is not about fancy packaging, high-carb flavours or the rip-off pricing... it's about amazing value, HUGE protein levels, and incredible results! Over a month's supply when following our recommended serving of 3 scoops per day. Comes with scooper for measurements
£33.00
Shipping: Free
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The Bulk Protein Company, SERIOUS GAINZ - Whey Protein Powder - Weight Gain, Mass Gainer - 30g Protein Powders (Strawberry, 5kg) B01K511Y58
HIGH-CALORIE MASS GAIN FORMULA WITH ~27G PROTEIN PER SERVING – SERIOUS GAINZ by The Bulk Protein Company delivers approximately 460 calories, 27g protein and 74g carbs per serving, helping support a consistent calorie surplus. Designed for hardgainers and anyone looking to increase size and strength, it supports muscle recovery, training performance and steady weight gain when combined with a structured nutrition plan. SUPPORTS MUSCLE GROWTH & POST-WORKOUT RECOVERY – Each serving provides a balanced blend of protein and carbohydrates to replenish energy after training and support lean muscle growth. The combination of soy protein, whey isolate, casein and oat flour delivers both fast and sustained amino acid release, helping refuel muscles, restore glycogen levels and maintain a high daily protein intake. MIXES BEST WITH MILK FOR A SMOOTHER, MORE ENJOYABLE SHAKE – As a bulking protein powder, SERIOUS GAINZ can be prepared with water or milk, though many users prefer milk for a smoother, richer and more consistent texture. Adding liquid first, shaking thoroughly or using a blender helps reduce clumps and creates a creamier shake that’s easier to drink during heavy bulking phases. SMOOTH, SWEET FLAVOUR EXPERIENCE YOU CAN ENJOY DAILY – This mass gainer delivers a rich, dessert-style taste that makes each shake enjoyable as part of your daily bulking routine. Available in flavours such as Chocolate, Cookies & Cream, Vanilla, Strawberry and Banana, it suits both classic and indulgent preferences. FILLING FORMULA DESIGNED TO SUPPORT A DAILY CALORIE SURPLUS – This mass gainer delivers a dense, satisfying shake that helps maintain daily calorie targets during bulking phases, supporting consistent nutrition intake.
£39.99
Shipping: Free
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Vegan Gainz 4kg - Plant Based Protein Powder - Weight Gainer- 32 Servings & 30g Protein Per Serving - The Bulk Protein Company (Carrot Cake) B217-CC
30g PROTEIN PER SERVING TO HELP BUILD MUSCLE - Vegan Friendly Mass Gainer protein powder that contains 30 grams of high quality Plant-based Protein per serving. A convenient and easy way to increase your daily protein intake. 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 PUT ON SIZE AND GAIN MASS - With 479 lean calories per serving, VEGAN GAINZ protein powder is ideal when BULKING. Use as part of a balanced diet to help add body mass and increase weight gain. Contains 77g of carbohydrates which will help your body absorb the protein within, turning it into muscle mass to help towards improving your overall body composition HIGH QUALITY PLANT-BASED PROTEIN - Premium blend of easily digested Pea Protein Isolate, Soy Protein Isolate, Hemp Protein and ultra-fine Oat flour. Perfect for Vegans and Vegetarians or for those who have dairy intolerances. 100% Vegan Friendly and Plant-Based! Contains Soy and Gluten VEGAN PROTEIN SHAKE THAT TASTES GREAT - Chocolate flavour. Add 3 scoops of powder to 400-500ml of cold water or plant milk and mix well to create a great tasting vegan Protein Shake! Can also be enjoyed in smoothies, with oats or when added to a pancake mix. Consume post-training on workout days and between breakfast and lunch on non-workout days EXCELLENT VALUE 4kg TUB WITH 32 SERVINGS - Vegan Gainz is not about fancy packaging, high-carb flavours or the rip-off pricing... it's about amazing value, HUGE protein levels, and incredible results! Over a month's supply when following our recommended serving of 3 scoops per day. Comes with scooper for measurements
£39.99
Shipping: Free
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SERIOUS GAINZ, 5kg (40 Servings) – Mass Gainer Protein Powder, ~27g Protein, ~460 Calories, ~74g Carbs – Weight Gainer Shake with Whey Isolate & Oat Flour – Post-Workout Recovery – Black Cherry B01AEWOI7Y
HIGH-CALORIE MASS GAIN FORMULA WITH ~27G PROTEIN PER SERVING – SERIOUS GAINZ by The Bulk Protein Company delivers approximately 460 calories, 27g protein and 74g carbs per serving, helping support a consistent calorie surplus. Designed for hardgainers and anyone looking to increase size and strength, it supports muscle recovery, training performance and steady weight gain when combined with a structured nutrition plan. SUPPORTS MUSCLE GROWTH & POST-WORKOUT RECOVERY – Each serving provides a balanced blend of protein and carbohydrates to replenish energy after training and support lean muscle growth. The combination of soy protein, whey isolate, casein and oat flour delivers both fast and sustained amino acid release, helping refuel muscles, restore glycogen levels and maintain a high daily protein intake. MIXES BEST WITH MILK FOR A SMOOTHER, MORE ENJOYABLE SHAKE – As a bulking protein powder, SERIOUS GAINZ can be prepared with water or milk, though many users prefer milk for a smoother, richer and more consistent texture. Adding liquid first, shaking thoroughly or using a blender helps reduce clumps and creates a creamier shake that’s easier to drink during heavy bulking phases. SMOOTH, SWEET FLAVOUR EXPERIENCE YOU CAN ENJOY DAILY – This mass gainer delivers a rich, dessert-style taste that makes each shake enjoyable as part of your daily bulking routine. Available in flavours such as Chocolate, Cookies & Cream, Vanilla, Strawberry and Banana, it suits both classic and indulgent preferences. FILLING FORMULA DESIGNED TO SUPPORT A DAILY CALORIE SURPLUS – This mass gainer delivers a dense, satisfying shake that helps maintain daily calorie targets during bulking phases, supporting consistent nutrition intake.
£34.54
Shipping: Free
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Vegan Gainz 4kg - Plant Based Protein Powder - Weight Gainer- 32 Servings & 30g Protein Per Serving - The Bulk Protein Company (Vanilla) B217-V
30g PROTEIN PER SERVING TO HELP BUILD MUSCLE - Vegan Friendly Mass Gainer protein powder that contains 30 grams of high quality Plant-based Protein per serving. A convenient and easy way to increase your daily protein intake. 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 PUT ON SIZE AND GAIN MASS - With 479 lean calories per serving, VEGAN GAINZ protein powder is ideal when BULKING. Use as part of a balanced diet to help add body mass and increase weight gain. Contains 77g of carbohydrates which will help your body absorb the protein within, turning it into muscle mass to help towards improving your overall body composition HIGH QUALITY PLANT-BASED PROTEIN - Premium blend of easily digested Pea Protein Isolate, Soy Protein Isolate, Hemp Protein and ultra-fine Oat flour. Perfect for Vegans and Vegetarians or for those who have dairy intolerances. 100% Vegan Friendly and Plant-Based! Contains Soy and Gluten VEGAN PROTEIN SHAKE THAT TASTES GREAT - Chocolate flavour. Add 3 scoops of powder to 400-500ml of cold water or plant milk and mix well to create a great tasting vegan Protein Shake! Can also be enjoyed in smoothies, with oats or when added to a pancake mix. Consume post-training on workout days and between breakfast and lunch on non-workout days EXCELLENT VALUE 4kg TUB WITH 32 SERVINGS - Vegan Gainz is not about fancy packaging, high-carb flavours or the rip-off pricing... it's about amazing value, HUGE protein levels, and incredible results! Over a month's supply when following our recommended serving of 3 scoops per day. Comes with scooper for measurements
£36.78
Shipping: Free
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The Bulk Protein Company, SERIOUS GAINZ - Whey Protein Powder - Weight Gain, Mass Gainer - 30g Protein Powders (Chocolate, 5kg) B07CGHS11Z
HIGH-CALORIE MASS GAIN FORMULA WITH ~27G PROTEIN PER SERVING – SERIOUS GAINZ by The Bulk Protein Company delivers approximately 460 calories, 27g protein and 74g carbs per serving, helping support a consistent calorie surplus. Designed for hardgainers and anyone looking to increase size and strength, it supports muscle recovery, training performance and steady weight gain when combined with a structured nutrition plan. SUPPORTS MUSCLE GROWTH & POST-WORKOUT RECOVERY – Each serving provides a balanced blend of protein and carbohydrates to replenish energy after training and support lean muscle growth. The combination of soy protein, whey isolate, casein and oat flour delivers both fast and sustained amino acid release, helping refuel muscles, restore glycogen levels and maintain a high daily protein intake. MIXES BEST WITH MILK FOR A SMOOTHER, MORE ENJOYABLE SHAKE – As a bulking protein powder, SERIOUS GAINZ can be prepared with water or milk, though many users prefer milk for a smoother, richer and more consistent texture. Adding liquid first, shaking thoroughly or using a blender helps reduce clumps and creates a creamier shake that’s easier to drink during heavy bulking phases. SMOOTH, SWEET FLAVOUR EXPERIENCE YOU CAN ENJOY DAILY – This mass gainer delivers a rich, dessert-style taste that makes each shake enjoyable as part of your daily bulking routine. Available in flavours such as Chocolate, Cookies & Cream, Vanilla, Strawberry and Banana, it suits both classic and indulgent preferences. FILLING FORMULA DESIGNED TO SUPPORT A DAILY CALORIE SURPLUS – This mass gainer delivers a dense, satisfying shake that helps maintain daily calorie targets during bulking phases, supporting consistent nutrition intake.
£25.49
Shipping: Free
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The Bulk Protein Company, SERIOUS Gainz - Whey Protein Powder - Weight Gain, Mass Gainer - 30g Protein Powders (Chocolate, 5kg) (Pack of 3) B0GP865SVP
The information below applies to each unit in the pack HIGH-CALORIE MASS GAIN FORMULA WITH 30G PROTEIN PER SERVING – SERIOUS GAINZ by The Bulk Protein Company is positioned as one of the high calorie drinks for weight gain, delivering approximately 468 calories, 30g protein and 81g carbs per serving to help hardgainers stay in a consistent calorie surplus. Designed for anyone needing extra calories to increase size and strength, it supports muscle recovery, training performance and progressive weight gain when paired with a structured eating plan. SUPPORTS MUSCLE GROWTH & POST-WORKOUT RECOVERY – Each serving provides a balanced blend of protein and carbohydrates to replenish energy after training and support lean muscle growth. The combination of soy protein powder, whey isolate protein powder, casein protein powder and oat flour delivers both fast and sustained amino acid release, helping refuel muscles, restore glycogen levels and maintain a high daily protein intake for better recovery and improved performance between sessions. MIXES BEST WITH MILK FOR A SMOOTHER, MORE ENJOYABLE SHAKE – As a bulking protein powder, SERIOUS GAINZ can be prepared with water or milk, though many users prefer milk for a smoother, richer and more consistent texture. Adding liquid first, shaking thoroughly or using a blender helps reduce clumps and creates a creamier shake that’s easier to drink during heavy bulking phases. This preparation method makes each serving more enjoyable and supports daily consistency as calorie needs increase. SMOOTH, SWEET FLAVOUR EXPERIENCE YOU CAN ENJOY DAILY – This whey protein powder delivers a rich, dessert-style taste that makes each protein shake enjoyable as part of your daily bulking routine. Available in popular flavours such as Chocolate, Cookies & Cream, Vanilla, Strawberry and Banana, it offers options suited to both classic and dessert-style preferences. Whether you mix it with water or milk, or blend it into oats and smoothies, the flavour stays satisfying across long bulking phases. FILLING FORMULA DESIGNED TO HELP MAINTAIN A DAILY CALORIE SURPLUS – This mass gainer delivers a dense, satisfying shake that helps men and women stay on track with daily calorie targets during bulking phases. Its naturally filling consistency supports a sustained surplus, while starting with smaller servings, adding more liquid or spacing intake can help maintain comfortable, consistent nutrition throughout the day.
£119.97
Shipping: £4.49
Amazon
Scitec Nutrition Jumbo – High-Calorie Weight Gainer – with Multi-Component Protein – Amino Acid Matrix – Metabolic Matrix – Superfood Blend, 6,6 kg, Vanilla 81003010122
MASS GAIN SOLUTION: Scitec Nutrition Jumbo is a "calorie bomb" designed for hardgainers with fast metabolisms, helping achieve a calorie surplus effortlessly. MACRONUTRIENT POWERHOUSE: With a multi-component protein matrix, added amino acids, and metabolic matrix, each serving packs 140g of carbohydrates and 53g of protein, significantly boosting daily calorie intake. ANIMAL-ORIGIN PROTEINS: Composed exclusively of animal-origin proteins, Jumbo provides essential amino acids in a perfectly adapted ratio, contributing to muscle mass increase and normal bone structure maintenance. CREATINE BOOST: Featuring 3 grams of creatine per serving, Jumbo enhances physical performance during short term, high-intensity exercises, supporting effective workouts and muscle development. COMPLETE FORMULA: Jumbo's formula includes an energizing complex, digestive complex, added amino acids, and a superfood matrix, providing a comprehensive solution for weight gain, energy, and overall nutritional support.
£96.90
Shipping: Free
Amazon Marketplace - BioTechUSA Official UK
SERIOUS Gainz, 5kg (40 Servings) – Mass Gainer Protein Powder, ~27g Protein, ~460 Calories, ~74g Carbs – Weight Gainer Shake with Whey Isolate & Oat Flour – Post-Workout Recovery – Salted Caramel B0CQD1JWJN
HIGH-CALORIE MASS GAIN FORMULA WITH ~27G PROTEIN PER SERVING – SERIOUS GAINZ by The Bulk Protein Company delivers approximately 460 calories, 27g protein and 74g carbs per serving, helping support a consistent calorie surplus. Designed for hardgainers and anyone looking to increase size and strength, it supports muscle recovery, training performance and steady weight gain when combined with a structured nutrition plan. SUPPORTS MUSCLE GROWTH & POST-WORKOUT RECOVERY – Each serving provides a balanced blend of protein and carbohydrates to replenish energy after training and support lean muscle growth. The combination of soy protein, whey isolate, casein and oat flour delivers both fast and sustained amino acid release, helping refuel muscles, restore glycogen levels and maintain a high daily protein intake. MIXES BEST WITH MILK FOR A SMOOTHER, MORE ENJOYABLE SHAKE – As a bulking protein powder, SERIOUS GAINZ can be prepared with water or milk, though many users prefer milk for a smoother, richer and more consistent texture. Adding liquid first, shaking thoroughly or using a blender helps reduce clumps and creates a creamier shake that’s easier to drink during heavy bulking phases. SMOOTH, SWEET FLAVOUR EXPERIENCE YOU CAN ENJOY DAILY – This mass gainer delivers a rich, dessert-style taste that makes each shake enjoyable as part of your daily bulking routine. Available in flavours such as Chocolate, Cookies & Cream, Vanilla, Strawberry and Banana, it suits both classic and indulgent preferences. FILLING FORMULA DESIGNED TO SUPPORT A DAILY CALORIE SURPLUS – This mass gainer delivers a dense, satisfying shake that helps maintain daily calorie targets during bulking phases, supporting consistent nutrition intake.
£39.99
Shipping: Free
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