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Best Protein Powder Mass Gainer 5kg of 2026
Last updated on 04/04/2026
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1
Optimum Nutrition Serious Mass Protein Powder with Creatine, Glutamine, 25 Vitamins and Minerals, Vanilla Flavour, 16 Servings, 5.45KG
Optimum Nutrition
12% Off
Why we love it
Supports muscle growth and performance.
Promotes recovery with essential nutrients.
Offers tasty, customizable protein smoothies.
Main Highlights
PACKAGING MAY VARY: New look, with the same trusted Quality!
Mass gainer with whopping 1250 CALORIES and 50g of PROTEIN per serving. Contains less than 5g fat!
Comes as an instantised powder. Mix with fruit or nut butters for a tasty and calorific post-workout drink or take between meals to ENCOURAGE MUSCLE GROWTH
PROUDLY CONTAINS NO ADDED SUGAR! Boasts 24 vitamins and minerals per serving
GREAT VALUE FOR MONEY. Serious Mass protein powder delivers a high-calorie content and quality protein at competitive rates
Provides calories, ENCOURAGING WEIGHT GAIN and refuels body’s glycogen stores
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9.7
Exceptional
Check Price
9.7
Exceptional
Optimum Nutrition
Optimum Nutrition Serious Mass Protein Powder with Creatine, Glutamine, 25 Vitamins and Minerals, Vanilla Flavour, 16 Servings, 5.45KG
12% Off
Check Price
Show More
Why we love it
Supports muscle growth and performance.
Promotes recovery with essential nutrients.
Offers tasty, customizable protein smoothies.
Main Highlights
PACKAGING MAY VARY: New look, with the same trusted Quality!
Mass gainer with whopping 1250 CALORIES and 50g of PROTEIN per serving. Contains less than 5g fat!
Comes as an instantised powder. Mix with fruit or nut butters for a tasty and calorific post-workout drink or take between meals to ENCOURAGE MUSCLE GROWTH
PROUDLY CONTAINS NO ADDED SUGAR! Boasts 24 vitamins and minerals per serving
GREAT VALUE FOR MONEY. Serious Mass protein powder delivers a high-calorie content and quality protein at competitive rates
Provides calories, ENCOURAGING WEIGHT GAIN and refuels body’s glycogen stores
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Value for Money
2
Optimum Nutrition Serious Mass Protein Powder High Calorie Mass Gainer with Vitamins, Creatine and Glutamine, Chocolate, 16 Servings, 5.45 kg
Optimum Nutrition
12% Off
Why we love it
Supports muscle growth and performance.
Promotes muscle recovery after workouts.
Comes in 6 delicious flavours.
Main Highlights
Low fat mass gainer with over 1262 CALORIES and 50g of PROTEIN per serving to support muscle growth* plus 3 grams of CREATINE MONOHYDRATE to support performance**
No added sugar protein powder formula with 25 vitamins and minerals and less than 5g fat per serving, plus over 248 grams of CARBOHYDRATES helping support muscle recovery***
Serious Mass protein powder comes in 6 flavours (banana, chocolate peanut butter, chocolate, cookies & cream, strawberry and vanilla) & contains sweetener
To prepare weight gainer mix 2 scoops with 710 ml of water or plant milk, add fruit or nut butters for a tasty and calorific post workout or between meals protein smoothie
Source EFSA Journal *2010;8(10):1811; 2011;9(6):2203; ** 2011;9(7):2303; ***2011; 9(7):2303
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9.5
Superb
Check Price
9.5
Superb
Optimum Nutrition
Optimum Nutrition Serious Mass Protein Powder High Calorie Mass Gainer with Vitamins, Creatine and Glutamine, Chocolate, 16 Servings, 5.45 kg
12% Off
Check Price
Show More
Why we love it
Supports muscle growth and performance.
Promotes muscle recovery after workouts.
Comes in 6 delicious flavours.
Main Highlights
Low fat mass gainer with over 1262 CALORIES and 50g of PROTEIN per serving to support muscle growth* plus 3 grams of CREATINE MONOHYDRATE to support performance**
No added sugar protein powder formula with 25 vitamins and minerals and less than 5g fat per serving, plus over 248 grams of CARBOHYDRATES helping support muscle recovery***
Serious Mass protein powder comes in 6 flavours (banana, chocolate peanut butter, chocolate, cookies & cream, strawberry and vanilla) & contains sweetener
To prepare weight gainer mix 2 scoops with 710 ml of water or plant milk, add fruit or nut butters for a tasty and calorific post workout or between meals protein smoothie
Source EFSA Journal *2010;8(10):1811; 2011;9(6):2203; ** 2011;9(7):2303; ***2011; 9(7):2303
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3
XL Nutrition Xtra Mass 5.2kg Mass Gainer - Serious Mass Protein Powder - 50g Protein, 1000 Calories, Creatine Monohydrate, BCAA, Glutamine - 20 Servings, Strawberry Flavour
XL Nutrition
Why we love it
Packed with 1000 extra calories.
Enriched with 172g carbohydrates.
Boosted with 50g protein.
Main Highlights
Extra calories for muscle growth: This weight gainer provides 1000 calories per serving, ideal for those seeking serious mass protein powder options. It offers a convenient shake alternative to meet your caloric intake goals efficiently.
Carbs for energy: With 172g of carbs per serving, this weight gain protein powder supports your body's energy needs. It's a key component in our mass protein powder, fueling your workouts and aiding digestion.
High protein content: Delivering 50g per serving, this is the best protein powder for muscle gain. It supports muscle repair and growth, making it an essential part of any bulking protein powder regimen.
Enriched with BCAA's and glutamimne: Loaded with BCAAs and glutamine, this 5kg protein powder helps reduce muscle soreness and fatigue, supporting muscle gain and recovery post-workout. It's a top choice for serious mass.
Creatine for stregnth: Added creatine mono hydrate makes this bulk pure whey protein powder perfect for doubling your strength and lean muscle gains, enhancing the effectiveness of your gym protein powder routine.
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9.5
Superb
Check Price
9.5
Superb
XL Nutrition
XL Nutrition Xtra Mass 5.2kg Mass Gainer - Serious Mass Protein Powder - 50g Protein, 1000 Calories, Creatine Monohydrate, BCAA, Glutamine - 20 Servings, Strawberry Flavour
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Why we love it
Packed with 1000 extra calories.
Enriched with 172g carbohydrates.
Boosted with 50g protein.
Main Highlights
Extra calories for muscle growth: This weight gainer provides 1000 calories per serving, ideal for those seeking serious mass protein powder options. It offers a convenient shake alternative to meet your caloric intake goals efficiently.
Carbs for energy: With 172g of carbs per serving, this weight gain protein powder supports your body's energy needs. It's a key component in our mass protein powder, fueling your workouts and aiding digestion.
High protein content: Delivering 50g per serving, this is the best protein powder for muscle gain. It supports muscle repair and growth, making it an essential part of any bulking protein powder regimen.
Enriched with BCAA's and glutamimne: Loaded with BCAAs and glutamine, this 5kg protein powder helps reduce muscle soreness and fatigue, supporting muscle gain and recovery post-workout. It's a top choice for serious mass.
Creatine for stregnth: Added creatine mono hydrate makes this bulk pure whey protein powder perfect for doubling your strength and lean muscle gains, enhancing the effectiveness of your gym protein powder routine.
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4
USN Hyperbolic Mass Strawberry Cheesecake 6kg: High Calorie Mass Gainer Protein Powder for Muscle Building and Weight Gain - Improved Formula & Flavour with 7.5g Creatine Monohydrate and Less Sugar
USN
Why we love it
Uncompromised taste with muscle mass.
High calorie for quick results.
Nutrition-rich performance booster.
Main Highlights
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 strawberry flavour mass gainer provides a greater post-workout effectiveness, 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.
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9.4
Superb
Check Price
9.4
Superb
USN
USN Hyperbolic Mass Strawberry Cheesecake 6kg: High Calorie Mass Gainer Protein Powder for Muscle Building and Weight Gain - Improved Formula & Flavour with 7.5g Creatine Monohydrate and Less Sugar
Check Price
Show More
Why we love it
Uncompromised taste with muscle mass.
High calorie for quick results.
Nutrition-rich performance booster.
Main Highlights
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 strawberry flavour mass gainer provides a greater post-workout effectiveness, 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.
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5
Reflex Nutrition Instant Mass Heavyweight - Mass Gainer - Over 1000 Kcal per Serving, 60g Protein, Creatine - High Calorie Post Workout or Before Bed Protein Shake (Chocolate Perfection, 5.4 kg)
Reflex
Why we love it
Promotes muscle gain effectively.
Ensures nutrient-rich intake.
Quality ensured from Reflex Nutrition.
Main Highlights
Engineered for Gains: This seamless protein shake mix is specifically formulated to accelerate muscle and weight gains and improve post-workout recovery, enhancing overall workout performance for the dedicated, hard gainer and serious athlete alike
Excellent Nutrition Profile: Packed with quality ingredients, each protein shake serving delivers over 1000 kcals, 200g of complex carbohydrates, 60g of muscle gain protein, critical EAAs, creatine, 18 vitamins and minerals (B12, B6, C, Iron, Zinc)
Outstanding Taste Sensation: Our Chocolate Perfection mass gainer flavour isn't just a treat for your taste buds - it's a deliciously creamy escape into indulgence with every sip, all while you are fueling your body for mass gain and muscle recovery
Optimal Timing for Maximum Impact: Consume Instant Mass Heavyweight high protein shake between meals for a positive nitrogen balance, 20-30 minutes post workout for best results or 45-60 minutes before sleep to aid overnight muscle maintenance
Trusted Quality Assurance: Reflex Nutrition's promise to quality means whey protein powder from grass-fed cows - Protein Sources are Glutamine Peptides, Whey Protein Concentrate, Milk Protein, Hydrolysed Whey Protein
Produced in an Informed Sport Registered Facility - Suitable for vegetarians and Halal certified - Zero added sugars, artificial colors, or soy protein, assuring a conscientious choice of weight gainer for your muscle-building objectives
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9.2
Superb
Check Price
9.2
Superb
Reflex
Reflex Nutrition Instant Mass Heavyweight - Mass Gainer - Over 1000 Kcal per Serving, 60g Protein, Creatine - High Calorie Post Workout or Before Bed Protein Shake (Chocolate Perfection, 5.4 kg)
Check Price
Show More
Why we love it
Promotes muscle gain effectively.
Ensures nutrient-rich intake.
Quality ensured from Reflex Nutrition.
Main Highlights
Engineered for Gains: This seamless protein shake mix is specifically formulated to accelerate muscle and weight gains and improve post-workout recovery, enhancing overall workout performance for the dedicated, hard gainer and serious athlete alike
Excellent Nutrition Profile: Packed with quality ingredients, each protein shake serving delivers over 1000 kcals, 200g of complex carbohydrates, 60g of muscle gain protein, critical EAAs, creatine, 18 vitamins and minerals (B12, B6, C, Iron, Zinc)
Outstanding Taste Sensation: Our Chocolate Perfection mass gainer flavour isn't just a treat for your taste buds - it's a deliciously creamy escape into indulgence with every sip, all while you are fueling your body for mass gain and muscle recovery
Optimal Timing for Maximum Impact: Consume Instant Mass Heavyweight high protein shake between meals for a positive nitrogen balance, 20-30 minutes post workout for best results or 45-60 minutes before sleep to aid overnight muscle maintenance
Trusted Quality Assurance: Reflex Nutrition's promise to quality means whey protein powder from grass-fed cows - Protein Sources are Glutamine Peptides, Whey Protein Concentrate, Milk Protein, Hydrolysed Whey Protein
Produced in an Informed Sport Registered Facility - Suitable for vegetarians and Halal certified - Zero added sugars, artificial colors, or soy protein, assuring a conscientious choice of weight gainer for your muscle-building objectives
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6
Out Angled Method Mass Gainer Powder, Tropical Banana 6kg 100 Scoops | High Calorie Whey Protein Powder Weight Gainer for Muscle Growth
OUT ANGLED
Why we love it
Protein aids post-workout recovery.
Carbs provide sustained energy.
Boosts daily calorie intake.
Main Highlights
High-Quality Protein Source - A mass gainer supplement containing whey protein, derived from milk, provides a rich source of essential amino acids. Whey protein powder is well-known for its rapid absorption, making it an excellent choice for post-workout recovery and muscle growth.
Balanced Carbohydrate Blend - The combination of maltodextrin, dextrose monohydrate, waxy maize, and fine oats creates a balanced carbohydrate blend with high calories. These complex and simple carbohydrates provide sustained energy, making them suitable for athletes and bodybuilders who need to refuel after intense workouts.
Enhanced Caloric Intake - Mass gainer supplements are designed to help individuals with high-calorie needs gain and maintain muscle growth. The inclusion of whole milk powder contributes to the supplement's overall caloric content, making it a convenient way to boost daily calorie intake for those seeking to gain weight.
Convenient for Bulking - This supplement is particularly beneficial for individuals in the bulking phase of their fitness journey. With a combination of whey protein and carbohydrates, it can help users meet their daily nutritional goals and support muscle growth.
Gluten Alert - It's important to note that the supplement may contain gluten due to the inclusion of fine oats.
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9.0
Superb
Check Price
9.0
Superb
OUT ANGLED
Out Angled Method Mass Gainer Powder, Tropical Banana 6kg 100 Scoops | High Calorie Whey Protein Powder Weight Gainer for Muscle Growth
Check Price
Show More
Why we love it
Protein aids post-workout recovery.
Carbs provide sustained energy.
Boosts daily calorie intake.
Main Highlights
High-Quality Protein Source - A mass gainer supplement containing whey protein, derived from milk, provides a rich source of essential amino acids. Whey protein powder is well-known for its rapid absorption, making it an excellent choice for post-workout recovery and muscle growth.
Balanced Carbohydrate Blend - The combination of maltodextrin, dextrose monohydrate, waxy maize, and fine oats creates a balanced carbohydrate blend with high calories. These complex and simple carbohydrates provide sustained energy, making them suitable for athletes and bodybuilders who need to refuel after intense workouts.
Enhanced Caloric Intake - Mass gainer supplements are designed to help individuals with high-calorie needs gain and maintain muscle growth. The inclusion of whole milk powder contributes to the supplement's overall caloric content, making it a convenient way to boost daily calorie intake for those seeking to gain weight.
Convenient for Bulking - This supplement is particularly beneficial for individuals in the bulking phase of their fitness journey. With a combination of whey protein and carbohydrates, it can help users meet their daily nutritional goals and support muscle growth.
Gluten Alert - It's important to note that the supplement may contain gluten due to the inclusion of fine oats.
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7
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
Warrior
5% Off
Why we love it
Supports muscle, strength, and gains.
Six tasty protein shake flavours.
Blend of fast, slow protein.
Main Highlights
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.
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8.8
Excellent
Check Price
8.8
Excellent
Warrior
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
5% Off
Check Price
Show More
Why we love it
Supports muscle, strength, and gains.
Six tasty protein shake flavours.
Blend of fast, slow protein.
Main Highlights
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.
Show More
8
Optimum Nutrition Serious Mass Protein Powder, Banana, 5.45kg, 16 Servings
Optimum Nutrition
22% Off
Why we love it
Supports muscle growth effectively.
Promotes performance and recovery.
Choice of delicious flavors.
Main Highlights
Low fat mass gainer with over 1250 CALORIES and 50g of PROTEIN per serving to support muscle growth* plus 3 grams of CREATINE MONOHYDRATE to support performance**
No added sugar protein powder formula with 25 vitamins and minerals and less than 5g fat per serving, plus over 250 grams of CARBOHYDRATES helping support muscle recovery***
Serious Mass protein powder comes in 6 flavours (banana, chocolate peanut butter, chocolate, cookies & cream, strawberry and vanilla) & contains sweetener
To prepare weight gainer mix 2 scoops with 710 ml of water or plant milk, add fruit or nut butters for a tasty and calorific post workout or between meals protein smoothie
Source EFSA Journal *2010;8(10):1811; 2011;9(6):2203; ** 2011;9(7):2303; ***2011; 9(7):2303
Show More
8.7
Excellent
Check Price
8.7
Excellent
Optimum Nutrition
Optimum Nutrition Serious Mass Protein Powder, Banana, 5.45kg, 16 Servings
22% Off
Check Price
Show More
Why we love it
Supports muscle growth effectively.
Promotes performance and recovery.
Choice of delicious flavors.
Main Highlights
Low fat mass gainer with over 1250 CALORIES and 50g of PROTEIN per serving to support muscle growth* plus 3 grams of CREATINE MONOHYDRATE to support performance**
No added sugar protein powder formula with 25 vitamins and minerals and less than 5g fat per serving, plus over 250 grams of CARBOHYDRATES helping support muscle recovery***
Serious Mass protein powder comes in 6 flavours (banana, chocolate peanut butter, chocolate, cookies & cream, strawberry and vanilla) & contains sweetener
To prepare weight gainer mix 2 scoops with 710 ml of water or plant milk, add fruit or nut butters for a tasty and calorific post workout or between meals protein smoothie
Source EFSA Journal *2010;8(10):1811; 2011;9(6):2203; ** 2011;9(7):2303; ***2011; 9(7):2303
Show More
9
Anabolic Gainz 5kg – Mass Gainer – 30g Protein Powder – Contains 3g Creatine Per Serving – Post Workout Recovery Fuel to Build Lean Muscle – 40 Servings – GMP Certified – TBPC (Strawberry)
The Bulk Protein Company
Why we love it
Supports rapid muscle growth.
Packed with vital nutrients.
Convenient post-workout blend.
Main Highlights
ANABOLIC GAINZ – Is a protein powder, designed to supplement muscle growth and to be consumed as a post-workout shake. We’re now available in the staple flavours, these are Chocolate, Strawberry, and Vanilla.
NUTRITIONALS – Our Anabolic Gainz Mass Gainer comes in a 5kg tub containing 30g of Protein and is packed with over 450 calories! In addition, we’ve added 3g of Creatine per serving to support muscle growth, recovery, and performance.
MACROs – Our shake contains Carbohydrates, Creatine, Amino Acids, Vitamins, and Minerals. It’s a great-tasting protein drink that will slot straight into your supplement stack.
40 SERVINGS – With over a month's supply this protein powder will help reach your goals. It mixes well and doesn’t require a blender, simply look out for our TBPC Gainz 800ml Shaker.
TBPC – Here at The Bulk Protein Company we're serious about value, huge protein levels, and incredible results in your training & diet. If you're serious about training, Anabolic Gainz is for you. GMP Certified, Manufactured in the UK.
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8.7
Excellent
Check Price
8.7
Excellent
The Bulk Protein Company
Anabolic Gainz 5kg – Mass Gainer – 30g Protein Powder – Contains 3g Creatine Per Serving – Post Workout Recovery Fuel to Build Lean Muscle – 40 Servings – GMP Certified – TBPC (Strawberry)
Check Price
Show More
Why we love it
Supports rapid muscle growth.
Packed with vital nutrients.
Convenient post-workout blend.
Main Highlights
ANABOLIC GAINZ – Is a protein powder, designed to supplement muscle growth and to be consumed as a post-workout shake. We’re now available in the staple flavours, these are Chocolate, Strawberry, and Vanilla.
NUTRITIONALS – Our Anabolic Gainz Mass Gainer comes in a 5kg tub containing 30g of Protein and is packed with over 450 calories! In addition, we’ve added 3g of Creatine per serving to support muscle growth, recovery, and performance.
MACROs – Our shake contains Carbohydrates, Creatine, Amino Acids, Vitamins, and Minerals. It’s a great-tasting protein drink that will slot straight into your supplement stack.
40 SERVINGS – With over a month's supply this protein powder will help reach your goals. It mixes well and doesn’t require a blender, simply look out for our TBPC Gainz 800ml Shaker.
TBPC – Here at The Bulk Protein Company we're serious about value, huge protein levels, and incredible results in your training & diet. If you're serious about training, Anabolic Gainz is for you. GMP Certified, Manufactured in the UK.
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10
The Bulk Protein Company, SERIOUS GAINZ - Whey Protein Powder - Weight Gain, Mass Gainer - 30g Protein Powders (Chocolate, 5kg)
The Bulk Protein Company
8% Off
Why we love it
Builds muscle with high protein.
Promotes mass gain effectively.
Offers excellent value for money.
Main Highlights
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.
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8.7
Excellent
Check Price
8.7
Excellent
The Bulk Protein Company
The Bulk Protein Company, SERIOUS GAINZ - Whey Protein Powder - Weight Gain, Mass Gainer - 30g Protein Powders (Chocolate, 5kg)
8% Off
Check Price
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Why we love it
Builds muscle with high protein.
Promotes mass gain effectively.
Offers excellent value for money.
Main Highlights
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.
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