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Nutrex Research Anabol Hardcore Anabolic Activator, Muscle Builder and Hardening Agent, 60 Pills Fast Acting Liquid Capsules - 1 Month Supply
US Store
Nutrex Research

Nutrex Research Anabol Hardcore Anabolic Activator, Muscle Builder and Hardening ...
4.3

2k+ bought

GBP 33

35% OFF
NOW Sports, Carbo Gain Powder, Complex Carb, Energy Production, 8 lbs
US Store
NOW

NOW Sports, Carbo Gain Powder, Complex Carb, Energy Production, 8 lbs
4.6

2k+ bought

GBP 33 51

Dymatize Super Mass Gainer, 52g Protein Powder, Rich Chocolate, 12 lb
US Store
Dymatize

Dymatize Super Mass Gainer, 52g Protein Powder, Rich Chocolate, 12 lb
4.4

2k+ bought

GBP 76

NAKED Chocolate Mass Gainer - All Natural Weight Gainer Protein Powder - 8lb Bulk, NSF Certified, GMO Free, Gluten Free & Soy Free. No Artificial Ingredients - 1,360 Calories
US Store
NAKED

NAKED Chocolate Mass Gainer - All Natural Weight Gainer Protein Powder - 8lb Bulk, ...
4.4

1k+ bought

GBP 83

CB-1 Weight Gainer Pills 90 Count | Clinically Tested Appetite Stimulant
US Store
Supragenix

CB-1 Weight Gainer Pills 90 Count | Clinically Tested Appetite Stimulant
4.1

1k+ bought

GBP 63

NAKED Vegan Mass - Natural Vegan Weight Gainer Protein Powder - 1,230 Calories, NSF Certified, Non-GMO, Soy & Gluten Free, No Artificial Ingredients - 8LB Bulk - 11 Servings
US Store
NAKED

NAKED Vegan Mass - Natural Vegan Weight Gainer Protein Powder - 1,230 Calories, NSF ...
4.2

800+ bought

GBP 83

Muscle Milk Gainer Protein Powder, Vanilla Creme, 32g Protein, 5 Pound
US Store
Muscle Milk

Muscle Milk Gainer Protein Powder, Vanilla Creme, 32g Protein, 5 Pound
4.4

500+ bought

GBP 60

Nutricost Mass Gainer Powder Cookies N Cream 6.9 LBS, GMO-Free
US Store
Nutricost

Nutricost Mass Gainer Powder Cookies N Cream 6.9 LBS, GMO-Free
4.2

500+ bought

GBP 58

13% OFF
MuscleTech High Protein Mass Gainer - Chocolate Fudge Brownie, 5.15LB
US Store
MuscleTech

MuscleTech High Protein Mass Gainer - Chocolate Fudge Brownie, 5.15LB
4.3

500+ bought

GBP 41 47

Optimum Nutrition Serious Mass Protein Powder, Chocolate Peanut Butter 6LB
US Store
Optimum Nutrition

Optimum Nutrition Serious Mass Protein Powder, Chocolate Peanut Butter 6LB
4.5

500+ bought

GBP 81

Jacked Factory Build-XT Daily Muscle Builder & Performance Enhancer - Muscle Building Supplement for Muscular Strength & Growth | Trademarked Ingredients Peak02, ElevATP, Astragin - 60 Veggie Pills
US Store

Jacked Factory Build-XT Daily Muscle Builder & Performance Enhancer - Muscle ...
4.2

500+ bought

GBP 34

Forzagen Lean Gainer Premium Mass Builder | Mass Gainer Protein Powder for Men & Women | High Calorie Protein, Weight Gain, Bulk, Muscle Building Supplement | Dutch Chocolate, 12 lbs. 16+ Servings
US Store
Forzagen

Forzagen Lean Gainer Premium Mass Builder | Mass Gainer Protein Powder for Men & ...
4.4

400+ bought

GBP 75

7% OFF
BSN True-Mass Weight Gainer Protein Powder, Choc Milkshake, 16 SRV
US Store
BSN

BSN True-Mass Weight Gainer Protein Powder, Choc Milkshake, 16 SRV
4.5

400+ bought

GBP 80 86

Optimum Nutrition Gold Standard Pro Gainer Protein, Double Chocolate, 5 LB
US Store
Optimum Nutrition

Optimum Nutrition Gold Standard Pro Gainer Protein, Double Chocolate, 5 LB
4.6

400+ bought

GBP 98

Evogen Evolog Glucose Disposal Agent | Nutrient Partitioning | 60 Capsules
US Store
Evogen

Evogen Evolog Glucose Disposal Agent | Nutrient Partitioning | 60 Capsules
4.5

300+ bought

GBP 43

Project AD Matador Glucose Control Dietary Supplement 60 Capsules
US Store
PROJECT AD LLC

Project AD Matador Glucose Control Dietary Supplement 60 Capsules
4.4

200+ bought

GBP 53

19% OFF
NOW Sports, Carbo Gain Powder, Rapid Absorption, Energy Production, 12 lbs
US Store
NOW

NOW Sports, Carbo Gain Powder, Rapid Absorption, Energy Production, 12 lbs
4.6

200+ bought

GBP 51 63

Ronnie Coleman Signature Series King Mass XL Protein Powder, Weight and Muscle Gainer, 60g Protein, 180g Carbohydrates, 1,000+ Calories Per Serving, Creatine and Glutamine, Chocolate, 6 lb
US Store
Ronnie Coleman Signature Series

Ronnie Coleman Signature Series King Mass XL Protein Powder, Weight and Muscle ...
4.3

200+ bought

GBP 53

NutraBio Extreme Mass Gainer Protein Powder, 53G Protein, Clean Weight Gainer, Increase Muscle Mass, Full Spectrum Amino Acid - Chocolate, 6 Pound
US Store
NutraBio

NutraBio Extreme Mass Gainer Protein Powder, 53G Protein, Clean Weight Gainer, ...
4.4

100+ bought

GBP 71

Ronnie Coleman Signature Series King Mass XL Mass Gainer Protein Powder, Muscle Gainer, 60g Protein, 180g Carbohydrates, 1,000+ Calories, Creatine and Glutamine, Dark Chocolate, 15 Pound
US Store
Ronnie Coleman Signature Series

Ronnie Coleman Signature Series King Mass XL Mass Gainer Protein Powder, Muscle ...
4.4

100+ bought

GBP 92

MRM Nutrition Gainer Protein with Probiotics & Postbiotics - 18 Servings
US Store
MRM

MRM Nutrition Gainer Protein with Probiotics & Postbiotics - 18 Servings
4.4

100+ bought

GBP 47

Mutant Mass Weight Gainer Protein Powder, Chocolate Fudge Brownie, 15 lb
US Store
Mutant

Mutant Mass Weight Gainer Protein Powder, Chocolate Fudge Brownie, 15 lb
4.5

100+ bought

GBP 92

GNC Pro Performance Weight Gainer, Vanilla Ice Cream, 32.5 Oz, 5 Servings
US Store
GNC

GNC Pro Performance Weight Gainer, Vanilla Ice Cream, 32.5 Oz, 5 Servings
5

100+ bought

GBP 44

BBL Gummies for Womens Curves - Weight Gainer for Women with Aguaje, Pueraria Mirifica & Fenugreek | Bigger Butt Growth & Hips Enhancement Booty Gummies, Curves & Feminine Weight Gain 60 Gummies
US Store
Jadee

BBL Gummies for Womens Curves - Weight Gainer for Women with Aguaje, Pueraria ...
4.1

100+ bought

GBP 25

Booty Gainer Pro Series - Weight/Muscle Gainer for Women to Grow Thicker Booty & Larger Buttox | Helps Naturally Curve & Shape Body | Grow Rounder, Wider & Thicker Glutes - 60 Capsules
US Store
EPN Supplements

Booty Gainer Pro Series - Weight/Muscle Gainer for Women to Grow Thicker Booty & ...
4.2

100+ bought

GBP 44

Rival Nutrition Clean Gainer Protein Powder Chocolate Fudge, 10 lb
US Store
Rival Nutrition

Rival Nutrition Clean Gainer Protein Powder Chocolate Fudge, 10 lb
4.4

100+ bought

GBP 92

Genius Muscle Health Supplement, Strawberry Vanilla, 30 Servings
US Store
The Genius Brand

Genius Muscle Health Supplement, Strawberry Vanilla, 30 Servings
4.3

50+ bought

GBP 92

Ronnie Coleman Signature Series King Mass XL, Vanilla Ice Cream, 2.75kg
US Store
Ronnie Coleman Signature Series

Ronnie Coleman Signature Series King Mass XL, Vanilla Ice Cream, 2.75kg
4.2

50+ bought

GBP 46

MuscleMeds Carnivor Mass Chocolate Big Steer 1250, 15 Lb Packaging May Vary
US Store
MuscleMeds

MuscleMeds Carnivor Mass Chocolate Big Steer 1250, 15 Lb Packaging May Vary
4.3

50+ bought

GBP 130

MHP UYM L 1350 Mass Building Weight Gainer, Muscle Mass Gains, w/50g Protein, High Calorie, 11g BCAAs, Leucine, Milk Chocolate, 8 Servings
US Store
Maximum Human Performance

MHP UYM L 1350 Mass Building Weight Gainer, Muscle Mass Gains, w/50g Protein, High ...
4.6

50+ bought

GBP 50

Rule 1 Proteins Clean Gainer, Chocolate Fudge, 15 Servings
US Store
Rule 1 Proteins

Rule 1 Proteins Clean Gainer, Chocolate Fudge, 15 Servings
4.4

50+ bought

GBP 48

Its Just! - Mass Gainer Powder, 100% Maltodextrin, 3lbs / 38 Servings
US Store
It's Just!

Its Just! - Mass Gainer Powder, 100% Maltodextrin, 3lbs / 38 Servings
4.5

50+ bought

GBP 29

SP Nutrition Furious Mass Gainer, Vanilla Flavor, 12 lbs, 50g Protein, 200g Carbs, EAAs & Digestive Enzymes
US Store
S Nutrition

SP Nutrition Furious Mass Gainer, Vanilla Flavor, 12 lbs, 50g Protein, 200g Carbs, ...

GBP 92

Myogenix Critical Mass Vanilla 5lbs & Aftershock Orange Creamsicle 6 lbs Critical Mass Whey Protein Powder, Creatine & Glutamine Aftershock Recovery Carbohydrates, Protein Powder, Aminos Stack
US Store
Myogenix

Myogenix Critical Mass Vanilla 5lbs & Aftershock Orange Creamsicle 6 lbs Critical ...

GBP 209

5% OFF
MuscleMeds Carnivor Mass - Vanilla Caramel
US Store
MuscleMeds

MuscleMeds Carnivor Mass - Vanilla Caramel
4.5

GBP 60 63

5% OFF
ALMASED de proteina en polvo, batido natural de reemplazo de comidas y suplemento para perdida de peso hombres y mujeres, proteina para bajar de peso, soporte de suplemento de GLP-1 y apoya la salud h
US Store
Almased

ALMASED de proteina en polvo, batido natural de reemplazo de comidas y suplemento ...

GBP 125 131

Myogenix Critical Mass Chocolate 5 lbs & Aftershock Wildberry Blast 6 lbs Critical Mass Whey Protein Powder, Creatine & Glutamine Aftershock Recovery Carbohydrates, Protein Powder, Aminos Stack
US Store
Myogenix

Myogenix Critical Mass Chocolate 5 lbs & Aftershock Wildberry Blast 6 lbs Critical ...

GBP 209

Optimum Nutrition Serious Mass Gainer Protein Powder, Vanilla, 12 Pound
US Store
Optimum Nutrition

Optimum Nutrition Serious Mass Gainer Protein Powder, Vanilla, 12 Pound
4.6

GBP 113

Ultimate Nutrition Prostar 100% Casein Protein Powder, Chocolate Creme, 5lb
US Store
Ultimate Nutrition

Ultimate Nutrition Prostar 100% Casein Protein Powder, Chocolate Creme, 5lb
4.4

GBP 100

17% OFF
GNC Pro Performance Weight Gainer Protein Powder, Increase Muscle Mass, Banned Substance Tested, Vanilla Ice Cream, 6 Servings
US Store
GNC

GNC Pro Performance Weight Gainer Protein Powder, Increase Muscle Mass, Banned ...
4.4

GBP 39 47

Endura Mass Weight Gainer 500gms- Chocolate Flavour
US Store
Endura

Endura Mass Weight Gainer 500gms- Chocolate Flavour
3.8

GBP 41

NATURADE Sugar Free Weight Gain Powder, 20.3 OZ
US Store
Naturade

NATURADE Sugar Free Weight Gain Powder, 20.3 OZ
4.4

GBP 44

Nutrex Anabol Hardcore & Anabol Nighttime Muscle Builder Bundle
US Store
Nutrex Research

Nutrex Anabol Hardcore & Anabol Nighttime Muscle Builder Bundle
4.8

GBP 67

Weight Gainer B-12 Chewable Absorbs Faster Than Weight Gain Pills for Fast Massive Weight Gain in Men and Women While Opening Your Appetite More Than Protein
US Store
Clear-Biotic

Weight Gainer B-12 Chewable Absorbs Faster Than Weight Gain Pills for Fast Massive ...
3.7

GBP 41

PERFECT SPORTS Hulk Mass Gainer, 50g Protein, Vanilla Ice Cream, 5 lb
US Store
PERFECT SPORTS

PERFECT SPORTS Hulk Mass Gainer, 50g Protein, Vanilla Ice Cream, 5 lb
4

GBP 53

Undefined Nutrition Gigantor Mass Gainer by Brian Shaw 60g Protein, 30 Servings, up to 790 Quality Calories Hardcore Hard Gainer Formula with 5- Phase Protein Blend 5.16 lbs, Chocolate
US Store
Undefined Nutrition

Undefined Nutrition Gigantor Mass Gainer by Brian Shaw 60g Protein, 30 Servings, up ...
5

GBP 87

Scitec mass 20 1750g vanilla by Scitec
US Store
Scitec Nutrition

Scitec mass 20 1750g vanilla by Scitec

GBP 176

Shop Premium Weight Gain Supplements Online with Ubuy Jersey

For many, the fitness journey is focused on shedding pounds, but a significant portion of the population faces the exact opposite challenge: putting on mass. Whether you possess a highly active metabolism, lead an intensely busy lifestyle that causes you to miss meals, or are an athlete looking to bulk up, gaining healthy weight requires a consistent caloric surplus. This is where a reliable weight gain supplement steps in as your silent hero.

Purchasing your supplements online from Ubuy Jersey grants you access to a premium, globally sourced catalogue. Situated perfectly within the broader health & supplements category, these products offer a world of high-quality macronutrients, complex carbohydrates, and essential vitamins designed to nourish your body and promote sustainable growth.

Explore Different Types of Weight Gain Supplements

Just as every individual's body is different, the weight gain supplements available today come in highly versatile, targeted formulations. Gone are the days of one size fits all, chalky drinks. Modern nutrition science provides high potency solutions for rapid bulking, cleaner formulations for lean muscle, and gentle options tailored for different age groups and genders. Here at our collection there are many branded weight management supplement options available to pick out from. Think of this as selecting the precise nutritional fuel your body demands to thrive.

The Heavyweight Champions (For Men and Hardgainers)

For those who naturally struggle to put on mass, standard meals simply aren't enough to tip the scales. A high-quality mass gainer protein powder is built for this exact scenario. Packed with upwards of 1,000 calories per serving, these formulas combine fast-acting whey protein with complex carbohydrates to fuel rigorous training sessions and accelerate recovery.

If you are hunting for the best weight gain supplements for skinny guys, you need a product that delivers a massive caloric punch without unnecessary fillers. Brands like MuscleTech and Dymatize lead the charge here, offering robust weight gain supplements for men that stimulate muscle protein synthesis while replenishing glycogen stores. They are the ultimate ally for gym-goers, athletes, and anyone tired of hitting a plateau.

Balanced Nourishment (For Women)

While men often seek sheer size, women typically look for lean muscle development, enhanced curves, and healthy weight restoration without feeling overly bloated. Weight gain supplements for women are specially formulated to meet these precise needs.

These variants generally offer a more moderate caloric surplus—focusing heavily on premium protein sources, digestive enzymes, and added vitamins for hair, skin, and bone health. They seamlessly blend into morning smoothies or post-pilates shakes, providing a clean, sustained energy release that supports your fitness goals whilst keeping you feeling vital and strong.

Gentle Nutrition (For Children)

Sometimes, children struggle to maintain a healthy growth curve due to being fussy eaters, having high activity levels, or navigating medical challenges. In these sensitive cases, weight gain supplements for kids offer a brilliant solution.

These formulas are distinctly different from sports nutrition products. They are fortified with essential vitamins, minerals, and healthy fats necessary for brain and bone development, masking vital nutrients behind delicious, kid-friendly flavours. Always consult with a paediatrician before introducing any new nutritional programme to a child's diet.

A Reddit User r/ADHDparenting asking about weight gain supplements for child

We’ve been doing this for most of my 6 years olds life. We get carnation chocolate milk in the tub, and put 3 heaping tablespoons of the carnation in a cup. Pour several tablespoons of heavy cream over it (start with 1 and see where he balks at the taste after you try it a few times. Then pour around 6 oz of milk over it and use a frother to mix it up. He feels like it’s regular chocolate milk and it gets him an extra 400 calories or so.

Source: r/ADHDparenting (Reddit)

Clean and Premium Blends (For the Health-Conscious)

If your primary concern is the quality of your calories, finding the best weight gainer comes down to ingredient transparency. Clean weight gain powder options eschew artificial sweeteners, dyes, and cheap maltodextrin in favour of whole food carbohydrate sources like sweet potato, oats, and grass-fed protein.

Transparent Labs is renowned for this approach, providing some of the best weight gain supplements on the market for those who want to bulk up without compromising their gut health or dietary ethos. Paired with a trusted favourite like Optimum Nutrition, these products ensure that every extra calorie you consume serves a functional, healthy purpose.

Weight Gain Supplement Picks 2026

To help you navigate your choices, explore our top picks for 2026, featuring innovative formulas tailored for varying needs, from hardcore bulking to clean, everyday nutritional support.

Product 

Brand

Best For

Why It Stands Out

Serious Mass Gainer

Optimum Nutrition

Reliable, clean bulking

The industry standard; offers a high protein to carb ratio (1:5) with 25+ added vitamins and minerals.

Mass Gainer

Transparent Labs

Health conscious athletes

100% grass fed whey, zero artificial sweeteners, colours, preservatives and whole food carbohydrate sources.

Super Mass Gainer

Dymatize

Hardgainers & skinny guys

Exceptionally high calorie count per serving with incredibly rich, dessert-like flavours.

Cell Tech

MuscleTech

Intense muscle growth

Scientifically backed formulas are often infused with creatine to maximise strength alongside size.

Frequently Asked Questions About Weight Gain Supplements

  • How long does a weight gainer take to see results?

    Results are highly dependent on your overall diet and training regimen. However, if you are consistently in a caloric surplus while using a weight gainer, you can generally expect to see noticeable changes on the scale within 2 to 4 weeks.

  • Can weight gain supplements improve my weight?

    Yes, absolutely. To gain weight, you must consume more calories than you burn. These supplements provide a highly convenient, liquid form of dense calories and nutrients, making it significantly easier to hit that required surplus without feeling uncomfortably full.

  • What should I consider before buying a weight gain supplement?

    You should evaluate your specific goals, dietary restrictions, and current caloric intake. Look closely at the macronutrient profile (ratio of protein to carbohydrates to fats) and check the ingredient list to ensure it aligns with your digestive tolerance. Avoid products heavily reliant on added sugars.

  • How do I choose the right weight gain supplement?

    Start by identifying your category. If you have a very fast metabolism, a heavy-duty mass gainer protein powder is ideal. If you are a woman looking for lean curves, opt for targeted weight gain supplements for women. Always prioritise brands that utilise third-party testing and transparent labelling for the safest and most effective results.