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Weight Gain Supplements

Weight gain supplements deliver a balanced blend of quality protein, carbs and 'good fats' to help you get the nutrition and calorific intake you need to build mass.

In conjunction with a healthy balanced diet and an effective training programme, our weight gain supplements will help you increase mass quickly.

A quality mass gainer alongside creatine supplements or muscle growth supplements, will help make sure the mass you gain is lean. Mass and weight gainers are designed to help you build lean muscle fast.

USN HMB 1000 x 120

USN HMB 1000 x 120

£13.74
Was £29.99

Save £16.25

USN HMB is a size and strength gainer, formulated to prevent muscle tissue breakdown and increase muscle size and strength.

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(1 reviews)
Extreme Nutrition Extreme Carbs 2.5kg

Extreme Nutrition Extreme Carbs 2.5kg

£14.93
Was £21.99

Save £7.06

Extreme Nutrition Extreme Carbs 2.5kg is a 100% pure complex carbohydrate powder.

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CNP Professional Pro-HMB x 120

CNP Professional Pro-HMB x 120

£19.20
Was £30.99

Save £11.79

CNP Professional Pro-HMB is ideally taken before and after exercise.

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Optimum Nutrition Glycomaize 2kg

Optimum Nutrition Glycomaize 2kg

£20.66
Was £33.99

Save £13.33

Optimum Nutrition Glycomaize 2kg is designed to be used often and in greater amounts.

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Optimum Nutrition Natural Whey & Oats 1.36kg

Optimum Nutrition Natural Whey & Oats 1.36kg

£31.94
Was £44.99

Save £13.05

Optimum Nutrition Natural Whey & Oats tastes great, and it goes down easy.

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Optimum Nutrition Pro Complex Gainer 2.38kg

Optimum Nutrition Pro Complex Gainer 2.38kg

£34.49
Was £63.99

Save £29.50

Optimum Nutrition Pro Complex Gainer 2.2kg was made with quality, not quantity in mind.

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(16 reviews)
CNP Professional Pro-Mass 2.5kg

CNP Professional Pro-Mass 2.5kg

£34.47
Was £55.99

Save £21.52

CNP Professional Pro-Mass 2.5kg is a scientific approach to gaining lean muscle mass for those with a fast metabolism or poor appetite.

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(1 reviews)
CNP Professional Pro-Mass 4.5kg

CNP Professional Pro-Mass 4.5kg

£55.28
Was £86.99

Save £31.71

CNP Professional Pro-Mass 4.5kg is a scientific approach to gaining lean muscle mass for those with a fast metabolism or poor appetite.

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(1 reviews)
MuscleMeds Carnivor Mass 2.5kg - Chocolate Fudge

MuscleMeds Carnivor Mass 2.5kg - Chocolate Fudge

£45.02
Was £76.99

Save £31.97

Beef has proven itself as a favourite anabolic protein source for many champion bodybuilders. MuscleMeds advanced hydrolyzed Beef Protein Isolate is capable of delivering rapid absorption of high concentrations of amino acids fast.

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Gaspari Real Mass ProBiotic 5.4KG

Gaspari Real Mass ProBiotic 5.4KG

£40.52
Was £71.99

Save £31.47

Gaspari Real Mass ProBiotic 5.4KG has just what you need to pack on the pounds and support your immune and digestive health.

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(1 reviews)
Atlas Superweight Gainer 1.5kg

Atlas Superweight Gainer 1.5kg

2 options from £10.40

Atlas Superweight Gainer 1.5kg has more muscle building calories than any other weight gainer ever.

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(1 reviews)
Atlas Lean Mass MRP 1kg - Chocolate Malt

Atlas Lean Mass MRP 1kg - Chocolate Malt

£9.95
Was £19.95

Save £10.00

Atlas Lean Mass MRP 1kg - Chocolate Malt is one of the most advanced and economical meal replacement powders available.

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Reflex Nutrition Growth Matrix Whey Protein 1.89kg

Reflex Nutrition Growth Matrix Whey Protein 1.89kg

£35.01
Was £59.99

Save £24.98

Reflex Nutrition Growth Matrix Whey Protein 1.89kg. Growth Matrix Whey Protein is for dedicated users who want maximum results after intense workouts.

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Nutrisport Whey Protein + Complex Carbs 1.4kg

Nutrisport Whey Protein + Complex Carbs 1.4kg

£14.98
Was £19.49

Save £4.51

Nutrisport Whey Protein + Complex Carbs 1.4kg - Chocolate fuels muscle growth and accelerates fat loss with the ideal blended ratio of complex carbohydrates and whey protein.

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(1 reviews)
Nutrisport Weight Gain Gainer 1.4kg

Nutrisport Weight Gain Gainer 1.4kg

£12.23
Was £19.99

Save £7.76

Nutrisport Weight Gain Gainer 1.4kg is ideal for those with a fast metabolism or lean physique who find it difficult to ‘bulk up’ with their normal calorie intake.

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(4 reviews)
Nutrisport Weight Gain Gainer 5kg

Nutrisport Weight Gain Gainer 5kg

£30.97
Was £59.99

Save £29.02

Nutrisport Weight Gain Gainer 5kg is ideal for those with a fast metabolism or lean physique who find it difficult to ‘bulk up’ with their normal calorie intake.

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(15 reviews)
Optimum Nutrition Serious Mass 2.72kg Weight Gain

Optimum Nutrition Serious Mass 2.72kg Weight Gain

£28.22
Was £48.99

Save £20.77

Optimum Nutrition Serious Mass 2.73kg Weight Gain mixes easy and tastes excellent!

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(5 reviews)
Optimum Nutrition Serious Mass Weight Gain 5.45kg

Optimum Nutrition Serious Mass Weight Gain 5.45kg

£49.46
Was £75.99

Save £26.53

Optimum Nutrition Serious Mass Weight Gain 5.45kg is the supreme products in weight gain formulas.

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(20 reviews)
BSN True Mass Whey Protein 2.6kg Weight Gain

BSN True Mass Whey Protein 2.6kg Weight Gain

£41.91
Was £70.99

Save £29.08

BSN True Mass Whey Protein - 2.6kg. This quality weight gainer contains a multi-functional protein blend that feeds your muscles for up to 8 hours.

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(9 reviews)
USN Muscle Fuel Mass 5kg Weight Gain

USN Muscle Fuel Mass 5kg Weight Gain

£52.50
Was £104.99

Save £52.49

USN's Muscle Fuel Mass is a meal replacement formula that is designed for active people who demand the benefits of top quality proteins.

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PVL Mutant Mass Weight Gain Gainer Bag 6.8kg Sale

PVL Mutant Mass Weight Gain Gainer Bag 6.8kg

£54.62
Was £93.99

Save £39.37

PVL Mutant Mass Weight Gain Gainer Bag 6.8kg is a serious calorie-dense formula, designed with only hard working athletes in mind.

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(9 reviews)
Nutrisport Protein & Carbs - All In One 5kg

Nutrisport Protein & Carbs - All In One 5kg

£30.97
Was £65.99

Save £35.02

Nutrisport Protein & Carbs - All In One has enough muscle building ingredients to rival any off the better known ‘all in ones‘ at a faction off the price!

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(10 reviews)
PVL Mutant Mass Weight Gain Gainer 2.2kg

PVL Mutant Mass Weight Gain Gainer 2.2kg

£25.35
Was £39.59

Save £14.24

PVL Mutant Mass Weight Gain Gainer 2.2kg is a serious calorie-dense formula, designed with only hard working athletes in mind.

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(7 reviews)
USN Hyperbolic Mass 2kg

USN Hyperbolic Mass 2kg

£25.29
Was £45.99

Save £20.70

USN Hyperbolic Mass has been scientifically formulated for individuals with a fast metabolism who demand a high level of energy from quality protein and carbohydrates to prevent the breakdown of muscle tissue for energy.

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Hyper Strength Hyper Gain 5.4kg

Hyper Strength Hyper Gain 5.4kg

£35.18
Was £61.99

Save £26.81

Hyper Strength Hyper Gain 5.4kg contains a three stage protein system that helps your body feel full and at the same time giving it good quality sources of proteins.

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(6 reviews)
USN Hyperbolic Mass 6kg

USN Hyperbolic Mass 6kg

£54.99
Was £111.99

Save £57.00

USN Hyperbolic Mass 6kg has been scientifically formulated for individuals with a fast metabolism.

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(11 reviews)
Extreme Nutrition 4.5kg Extreme Mass

Extreme Nutrition 4.5kg Extreme Mass

£40.42
Was £63.99

Save £23.57

Extreme Nutrition 4.5kg Extreme Mass is designed to cause a slow and sustained release of nutrients to the bloodstream.

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Extreme Nutrition Build And Recover 4.32kg

Extreme Nutrition Build And Recover 4.32kg

£53.93
Was £89.99

Save £36.06

Extreme Nutrition Build And Recover - strawberry flavour - is designed to re-fuel the body with essential nutrients after exercise.

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(3 reviews)
Atlas Super Weight Gainer 5kg Sale

Atlas Super Weight Gainer 5kg

2 options from £29.99

Atlas Super Weight Gainer 5kg has more muscle building calories than any other weight gainer in the world.

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(46 reviews)
USN Muscle Fuel Mass 2kg

USN Muscle Fuel Mass 2kg

£24.99
Was £49.99

Save £25.00

USN's Muscle Fuel Mass is a meal replacement formula that is designed for active people who demand the benefits of top quality proteins, increased amounts of complex carbohydrates and nutrients for optimum health and muscle performance.

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Universal Nutrition Gain Fast 3100 2.3kg

Universal Nutrition Gain Fast 3100 2.3kg

£24.62
Was £41.99

Save £17.37

Universal Nutrition Gain Fast 3100 2.3kg helps when you need more calories.

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Universal Nutrition Gain Fast 3100 4.5kg

Universal Nutrition Gain Fast 3100 4.5kg

£50.62
Was £73.19

Save £22.57

Back in the “good old days” the go to supplement was a weight gainer. If you want to gain muscle, want to gain weight, then you need calories.

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(1 reviews)
Universal Nutrition Real Gains 3176g

Universal Nutrition Real Gains 3176g

£42.90
Was £72.99

Save £30.09

Universal Nutrition Real Gains 3176g is an extremely powerful mass-cultivating support formula that was created with you, a hardcore active and athletic individual, in mind.

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Universal Nutrition Real Gains 4.8kg

Universal Nutrition Real Gains 4.8kg

£71.39
Was £102.99

Save £31.60

Universal Nutrition Real Gains 4.8kg is an extremely powerful mass-cultivating support formula that was created with you, a hardcore active and athletic individual, in mind.

More Info
(1 reviews)
PHD Nutrition Growth Factor Mass 2.1kg

PHD Nutrition Growth Factor Mass 2.1kg

£33.91
Was £53.99

Save £20.08

PHD Nutrition Growth Factor Mass 2.1kg can help you build serious muscle mass, increase explosive strength and support muscle building testosterone levels.

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Reflex Nutrition Instant Mass Heavy Weight 5.4KG

Reflex Nutrition Instant Mass Heavy Weight 5.4KG

£43.77
Was £74.99

Save £31.22

Reflex Nutrition Instant Mass Heavy Weight is designed specifically for hardgainers and all athletes wanting a very high quality source of protein and complex carbohydrates.

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(1 reviews)
Reflex Nutrition Instant Mass Pro 2.27kg

Reflex Nutrition Instant Mass Pro 2.27kg

£35.11
Was £59.99

Save £24.88

Reflex Nutrition Instant Mass Pro 2.27kg is not a typical weight gainer, it is an ultra high-quality weight gain product made with a near 50/50 split of protein and carbohydrate.

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Efectiv Nutrition Mass 5.4kg

Efectiv Nutrition Mass 5.4kg

£38.10
Was £64.99

Save £26.89

Is this the best tasting protein shake ever? Efectiv Nutrition think so.

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(1 reviews)
BSN True Mass 1200 4.8kg

BSN True Mass 1200 4.8kg

£47.18
Was £74.99

Save £27.81

BSN True Mass 1200 4.8kg is the Ultimate Mass Gainer engineered for the true hard-gainer in need of serious caloric support.

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CNP Professional Pro Ultimate Mass 2kg

CNP Professional Pro Ultimate Mass 2kg

£29.21
Was £46.49

Save £17.28

CNP Professional Pro Ultimate Mass 2kg is CNP’s most advanced weight gain formula with over 560 calories and 54g of protein in each 150g serving.

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CNP Professional Pro Ultimate Mass 4kg

CNP Professional Pro Ultimate Mass 4kg

£54.96
Was £87.49

Save £32.53

CNP Professional Pro Ultimate Mass 4kg is CNP’s most advanced weight gain formula with over 560 calories and 54g of protein in each 150g serving.

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Nutrisport H3avyweight Mass Drive Anabolic 500g

Nutrisport H3avyweight Mass Drive Anabolic 500g

£7.50
Was £14.99

Save £7.49

Nutrisport H3avyweight Mass Drive Anabolic 500g comprises of a very fast, fast and medium fast protein source with the addition of a small amount of slow release protein.

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Nutrisport H3avyweight Mass Drive Anabolic 1.5kg

Nutrisport H3avyweight Mass Drive Anabolic 1.5kg

£15.00
Was £29.99

Save £14.99

Nutrisport H3avyweight Mass Drive Anabolic 1.5kg - A true muscle mass gainer combining the benefits of 'all-in-one' supplements with high quality protein powders.

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Nutrisport H3avyweight Mass Drive Anabolic 3kg

Nutrisport H3avyweight Mass Drive Anabolic 3kg

£24.99
Was £49.99

Save £25.00

Nutrisport H3avyweight Mass Drive Anabolic 3kg comprises of a very fast, fast and medium fast protein source with the addition of a small amount of slow release protein.

More Info
(1 reviews)
Nutrisport H3avyweight Mass Drive Anabolic 6kg

Nutrisport H3avyweight Mass Drive Anabolic 6kg

£45.00
Was £89.99

Save £44.99

Nutrisport H3avyweight Mass Drive Anabolic 6kg comprises of a very fast, fast and medium fast protein source with the addition of a small amount of slow release protein.

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Animal Mass 330g

Animal Mass 330g

£6.91

Animal Mass is a nutritionally-dense formula, designed to assist you in reaching your goals.

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Cellucor C4 Mass 1.2kg

Cellucor C4 Mass 1.2kg

£38.99
Was £64.99

Save £26.00

Cellucor C4 Mass 1.2kg - has key components for long lasting energy, including the new breakthrough ingredient, TeaCor™, to help you push through your toughest workouts.

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Grenade Muscle Machine Lean 1.84kg

Grenade Muscle Machine Lean 1.84kg

£40.83
Was £64.99

Save £24.16

Grenade Muscle Machine Lean 1.84kg contains high quality, multi-sourced protein: whey protein concentrate, whey protein isolate and milk proteins to aid in growth and maintenance of muscle mass.

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Grenade Muscle Machine Mass 2.25kg

Grenade Muscle Machine Mass 2.25kg

£31.40
Was £49.99

Save £18.59

Grenade Muscle Machine Mass 2.25kg Muscle Machine® MASS is a premium high calorie mass gainer designed for serious gains.

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Grenade Muscle Machine Mass 5.74kg

Grenade Muscle Machine Mass 5.74kg

£62.18
Was £98.99

Save £36.81

Grenade Muscle Machine Mass 5.74kg Muscle Machine® MASS is a premium high calorie mass gainer designed for serious gains.

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Medi-Evil Colossus 5kg

Medi-Evil Colossus 5kg

£62.49

Medi-Evil Colossus is an ultra-premium weight gainer, designed for the bodybuilder and strength athlete looking to quickly and effectively develop their body mass.

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Animal Mass 4.6kg

Animal Mass 4.6kg

£78.86
Was £113.99

Save £35.13

Animal Mass is a nutritionally-dense formula, designed to assist you in reaching your goals. Maximising your body’s size-gaining potential requires an increase in calories.

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Wellness Warehouse Mass Gainer 1kg

Wellness Warehouse Mass Gainer 1kg

£12.99
Was £21.99

Save £9.00

Wellness Warehouse Mass Gainer 1kg increases your strength, mass and power.

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Applied Nutrition Critical Mass 6kg

Applied Nutrition Critical Mass 6kg

£43.46

Applied Nutrition Critical Mass 6kg has been designed for people who find it hard to gain body mass, a hard gainer.

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(1 reviews)
ProSupps Incredibulk 2.72kg

ProSupps Incredibulk 2.72kg

£24.62

You are busting your a** in the gym every single day, eating everything that doesn’t eat you first, and you still look like your high school yearbook picture. Never fear….INCREDIBULK™ is here!

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ProSupps Incredibulk 5.45kg

ProSupps Incredibulk 5.45kg

£38.68

You are busting your a** in the gym every single day, eating everything that doesn’t eat you first, and you still look like your high school yearbook picture. Never fear….INCREDIBULK™ is here!

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Eddie Hall Ultimate Gainer 2.5kg

Eddie Hall Ultimate Gainer 2.5kg

£35.24
Was £46.99

Save £11.75

It was specifically designed for the UK’s Strongest Man and World Deadlift record holder, Eddie The Beast Hall. Packed full to the brim of nutrients, this mass advanced gainer supplement is designed to bring your diet and training to a higher level.

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Mission Nutrition Mass Gainer 1kg

Mission Nutrition Mass Gainer 1kg

£12.74
Was £16.99

Save £4.25

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Matrix Micro Oats Carbohydrate Powder 5kg

Matrix Micro Oats Carbohydrate Powder 5kg

£9.99
Was £34.99

Save £25.00

Matrix Micro Oats Carbohydrate Powder 5kg is a premium grade carbohydrate supplement utilising natural Scottish oats.

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(37 reviews)
Matrix Leucine Tablets x 120 Sale

Matrix Leucine Tablets x 120

£7.99
Was £30.99

Save £23.00

Matrix Leucine Tablets x 120 contain nothing but the purest muscle building BCAA available.

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(38 reviews)
Matrix Monster Carbs 8kg

Matrix Monster Carbs 8kg

£39.99
Was £89.99

Save £50.00

Matrix Monster Carbs 8kg is a high carbohydrate supplement carefully engineered to help you increase weight and muscle mass fast.

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(60 reviews)
Matrix Monster Calories 4kg Sale

Matrix Monster Calories 4kg

£24.99
Was £64.99

Save £40.00

Matrix Monster Calories 4kg is a high calorie weight gainer that incorporates important muscle building ingredients that are often overlooked in the world of bodybuilding.

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(70 reviews)
Matrix Monster Fusion 6.8kg

Matrix Monster Fusion 6.8kg

£39.99
Was £79.99

Save £40.00

Matrix Monster Fusion 6.8kg is an all-round weight gainer designed to support the intake of all the main nutrients required for packing on muscle mass.

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(48 reviews)
Matrix Monster Protein 4kg

Matrix Monster Protein 4kg

£29.99
Was £59.99

Save £30.00

Matrix Monster Protein 4kg is the highest protein content weight gainer in our range. Gain weight fast!

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(112 reviews)
Matrix Protein Pancake Mix 1kg Sale

Matrix Protein Pancake Mix 1kg

£13.99
Was £27.99

Save £14.00

Matrix Pancake Mix 1kg is a high protein, low GI delicious tasting snack including a triple stage release protein blend delivering both immediate and sustained amino acid release.

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(49 reviews)
Matrix Pure Oats 1KG

Matrix Pure Oats 1KG

£7.99
Was £18.99

Save £11.00

Matrix Pure Oats contains 100% Scottish oats, fine milled ensuring natural nutrients are maintained.

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(3 reviews)
Matrix Dextrose 1KG

Matrix Dextrose 1KG

£7.99
Was £18.99

Save £11.00

Matrix Dextrose 1KG contains 100% pure High GI Dextrose.

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(11 reviews)
Matrix Alpha-Test 5kg

Matrix Alpha-Test 5kg

£44.99
Was £93.99

Save £49.00

Matrix Alpha-Test 5kg is a unique all in one protein blend developed using the latest testosterone boosting research to create the ultimate anabolic state.

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(195 reviews)
Matrix Anabolic Hyper Gainz 250g - Muscle Building Powder

Matrix Anabolic Hyper Gainz 250g - Muscle Building Powder

£14.99
Was £32.99

Save £18.00

Matrix Anabolic Hyper Gainz represents the next step in physique enhancement technology, combining a multitude of muscle building ingredients in one ultra-concentrated formula.

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(58 reviews)
Matrix Alpha-Test 2.25kg

Matrix Alpha-Test 2.25kg

£28.99
Was £46.99

Save £18.00

Matrix Alpha-Test is a unique all in one protein blend developed using the latest testosterone boosting research to create the ultimate anabolic state.

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(15 reviews)
Kong Test Booster x 100 Sale

Kong Test Booster x 100

£29.99
Was £49.99

Save £20.00

Unlike other test boosters, Kong increases your testosterone pool, AND down regulates the SHBG protein, turning useless dormant testosterone into a potent muscle building fuel.

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(146 reviews)
Matrix Night Warrior x 120

Matrix Night Warrior x 120

£9.99
Was £29.99

Save £20.00

Matrix Night Warrior is an innovative new product designed to maximise your muscle building and restorative powers during sleep.

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(19 reviews)
Matrix Monster Fusion 4kg

Matrix Monster Fusion 4kg

£27.99
Was £59.99

Save £32.00

Matrix Monster Fusion is an all-round weight gainer designed to support the intake of all the main nutrients required for packing on muscle mass.

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(5 reviews)
Kong Creatine 350g

Kong Creatine 350g

£16.99
Was £29.99

Save £13.00

Matrix Kong Creatine 350g is not your regular creatine product, it’s an innovative blend of lab grade creatine forms which synergistically combine to produce the muscle and strength boosting effects of a BEAST.

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(21 reviews)
Matrix XL Mass Protein Flapjack - Chocolate Deluxe - 12 x 100g Sale

Matrix XL Mass Protein Flapjack - Chocolate Deluxe - 12 x 100g

£12.99
Was £34.99

Save £22.00

Matrix XL Mass Protein Flapjack - Chocolate Deluxe - 12 x 100g are a delicious tasting bar packed full of all the nutrients needed to build and maintain serious size and muscle mass.

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(3 reviews)
Applied Nutrition Critical Mass 2.8kg Sale

Applied Nutrition Critical Mass 2.8kg

£24.99
Was £56.99

Save £32.00

Applied Nutrition Critical Mass 2.8kg has been designed for people who find it hard to gain body mass, a hard gainer.

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Optimum Nutrition Gold Standard Gainer 1.6kg

Optimum Nutrition Gold Standard Gainer 1.6kg

£31.82
Was £49.99

Save £18.17

Introducing Optimum Nutrition Gold Standard Gainer - a new standard in lean weight gain performance products.

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Applied Nutrition Critical Mass 6kg Bundle

Applied Nutrition Critical Mass 6kg Bundle

£43.99
Was £95.00

Save £51.01

Critical Mass has been designed for people who find it hard to gain body mass, a hard gainer. Critical Mass provides a calorie dense formula comprising high levels of protein and carbohydrate in every serving.

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(5 reviews)
Optimum Nutrition Gold Standard Gainer Bundle 3.25kg

Optimum Nutrition Gold Standard Gainer Bundle 3.25kg

£49.99
Was £104.99

Save £55.00

Utilising only the finest ingredients, Optimum Nutrition presents Gold Standard Gainer - a new standard in lean weight gain performance products.

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(2 reviews)
Eddie Hall Beast Bundle 2.5KG

Eddie Hall Beast Bundle 2.5KG

£49.99
Was £121.46

Save £71.47

This supplement has been designed for those of you athletes that devote every bit of time to your love of sport or working out, and improving their physique and health with the nutritional requirements that your body needs.

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Matrix Alpha-Test Sale

Matrix Alpha-Test

2 options from £28.99

Matrix Alpha-Test is a unique all in one protein blend developed using the latest testosterone boosting research to create the ultimate anabolic state.

More Info
(195 reviews)

Weight gain and mass gain protein powder supplements are available in a wide range of brands and sizes. Supplement Centre stocks all the best weight gainers including Atlas Super Weight Gainer and Optimum Nutrition Serious Mass 5.45kg.

Disclaimer: Implied results may vary. Individuals will respond differently. Implied results assume an appropriate nutrition and training plan.