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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

ISK 7704

Animal M-Stak - Muscle Builder and Anabolic Mass Gainer Supplement for Bodybuilding - Lean Muscle Growth, Amino Complex and Pre Workout Energy, 21 Packs
US Store
Animal

Animal M-Stak - Muscle Builder and Anabolic Mass Gainer Supplement for Bodybuilding ...
4.5

1k+ bought

ISK 8975

CB-1 Weight Gainer Pills 90 Count | Clinically Tested Appetite Stimulant | Healthy Weight Gain Pills for Underweight Women & Men | Powerful Mass Gainer
US Store
Supragenix

CB-1 Weight Gainer Pills 90 Count | Clinically Tested Appetite Stimulant | Healthy ...
4.2

1k+ bought

ISK 11729

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

ISK 13559

Optimum Nutrition Gold Standard Pro Gainer Protein, Double Chocolate, 10 LB | Weight Gainer Protein Powder, High-Calorie Mass Gainer, 60g Protein per Serving, High Carbs, Vitamins & Minerals, Easy Mixing
US Store
Optimum Nutrition

Optimum Nutrition Gold Standard Pro Gainer Protein, Double Chocolate, 10 LB | ...

1k+ bought

ISK 27284

25% OFF
NOW Foods Sports Nutrition, Carbo Gain Powder Maltodextrin, Rapid Absorption, Energy Production, 8-Pound
US Store
NOW Foods

NOW Foods Sports Nutrition, Carbo Gain Powder Maltodextrin, Rapid Absorption, ...
4.6

1k+ bought

ISK 7152 9533

Optimum Nutrition Serious Mass Weight Gainer Protein Powder, Banana, 6LB | Weight Gainer Protein Powder, Mass Gainer with Whey Protein, Creatine, Glutamine, BCAAs, Vitamins & Minerals, Easy Mixing
US Store
Optimum Nutrition

Optimum Nutrition Serious Mass Weight Gainer Protein Powder, Banana, 6LB | Weight ...
4.4

600+ bought

ISK 15078

Dymatize Super Mass Gainer Protein Powder, Rich Chocolate, 52g Protein, 1g Creatine, 1280 Calories, 10.7g BCAAs, 245g Carbs, Contains Whey_Protein Powder, Isolate, and Casein 16 Servings Pack of 2
US Store
Dymatize

Dymatize Super Mass Gainer Protein Powder, Rich Chocolate, 52g Protein, 1g ...
4.4

600+ bought

ISK 28740

Nutricost Mass Gainer Powder Double Chocolate 7 LBS, Gluten Free | 50 Grams of Protein Per Serving, GMO-Free
US Store
Nutricost

Nutricost Mass Gainer Powder Double Chocolate 7 LBS, Gluten Free | 50 Grams of ...
4.4

600+ bought

ISK 10806

Naturade Weight Gain Nutrition Drink Mix for Healthy Weight Support, Balanced Calories with Protein, Vitamins & Minerals, Chocolate - 20.3 oz
US Store
Naturade

Naturade Weight Gain Nutrition Drink Mix for Healthy Weight Support, Balanced ...
4.1

600+ bought

ISK 5580

Optimum Nutrition Gold Standard Pro Gainer Protein, Vanilla Custard, 5 LB | Weight Gainer Protein Powder, High-Calorie Mass Gainer, 60g Protein per Serving, High Carbs, Vitamins & Minerals, Easy Mixing
US Store
Optimum Nutrition

Optimum Nutrition Gold Standard Pro Gainer Protein, Vanilla Custard, 5 LB | Weight ...
4.6

500+ bought

ISK 16973

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

Muscle Milk Gainer Protein Powder, Chocolate, 32g Protein, 5 Pound
4.5

500+ bought

ISK 10265

NAKED Vegan Mass - Chocolate Vegan Weight Gainer - 1,280 Calories, Non-GMO, Soy & Gluten Free, No Artificial Ingredients - 8LB Bulk - 11 Servings
US Store
NAKED

NAKED Vegan Mass - Chocolate Vegan Weight Gainer - 1,280 Calories, Non-GMO, Soy & ...
4.2

500+ bought

ISK 13559

Optimum Nutrition Gold Standard Pro Gainer Protein, Vanilla Custard, 5 LB | Weight Gainer Protein Powder, High-Calorie Mass Gainer, 60g Protein per Serving, High Carbs, Vitamins & Minerals, Easy Mixing
US Store
Optimum Nutrition

Optimum Nutrition Gold Standard Pro Gainer Protein, Vanilla Custard, 5 LB | Weight ...
4.6

500+ bought

ISK 16973

NutraBio CarboMax Maltodextrin Powder - Carbohydrate Powder for Sustained Energy - Calorie Rich for Muscle and Weight Gain - Unflavored - 5 Pounds, 75 Servings
US Store
NutraBio

NutraBio CarboMax Maltodextrin Powder - Carbohydrate Powder for Sustained Energy - ...
4.5

500+ bought

ISK 7154

10% OFF
Optimum Nutrition Gold Standard Pro Gainer, Weight Gainer Protein Powder, Double Chocolate, 10.19 Pounds Packaging May Vary Pack of 2
US Store
Optimum Nutrition

Optimum Nutrition Gold Standard Pro Gainer, Weight Gainer Protein Powder, Double ...
4.6

400+ bought

ISK 48510 53817

Smart Weight Gainer for Women Booty Pills, Curves & Shape Support for Healthy Weight Gain, Hips & Glutes Easy Alternative to Shakes 60 Pills with Aguaje, Pueraria Mirifica, Dong Quai & more
US Store
Jadee

Smart Weight Gainer for Women Booty Pills, Curves & Shape Support for Healthy ...
4.2

400+ bought

ISK 4557

Rule 1 Proteins Mass Gainer, Chocolate Fudge, 8 Servings | High-Calorie Weight Gain Formula with 1,220+ Calories, 250g+ Complex Carb Blend, 40g All-Whey Protein Per Serving
US Store
Rule 1 Proteins

Rule 1 Proteins Mass Gainer, Chocolate Fudge, 8 Servings | High-Calorie Weight Gain ...

400+ bought

ISK 7686

Optimum Nutrition Serious Mass Weight Gainer Protein Powder, Vanilla, 3LB | Weight Gainer Protein Powder, Mass Gainer with Whey Protein, Creatine, Glutamine, BCAAs, Vitamins & Minerals, Easy Mixing
US Store
Optimum Nutrition

Optimum Nutrition Serious Mass Weight Gainer Protein Powder, Vanilla, 3LB | Weight ...
4.2

400+ bought

ISK 6784

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

200+ bought

ISK 4575

Transparent Labs Mass Gainer Protein Powder - Naturally Flavored Grass-Fed Whey w/ 53g Protein, 110g Carbs, High-Calorie Powder for Muscle Gain & Recovery, 3g Creatine - 15 Servings, Chocolate Glaze
US Store
Transparent Labs

Transparent Labs Mass Gainer Protein Powder - Naturally Flavored Grass-Fed Whey w/ ...
4.4

200+ bought

ISK 15389

Nutricost Mass Gainer Powder Chocolate Peanut Butter 6.7 LBS, GMO-Free | 50 Grams of Protein Per Serving
US Store
Nutricost

Nutricost Mass Gainer Powder Chocolate Peanut Butter 6.7 LBS, GMO-Free | 50 Grams ...
4.1

200+ bought

ISK 10806

Mutant Mass Weight Gainer Protein Powder, Chocolate Fudge Brownie, 5 lb
US Store
Mutant

Mutant Mass Weight Gainer Protein Powder, Chocolate Fudge Brownie, 5 lb
4.4

200+ bought

ISK 9899

Evogen Evolog - Glucose Disposal Agent GDA & Elite Nutrient Partitioning | Mass Gainer & Weight Gainer for Women & Men | Supports Digestion, Glucose Optimization, Muscle Volume | 60 Capsules
US Store
Evogen

Evogen Evolog - Glucose Disposal Agent GDA & Elite Nutrient Partitioning | Mass ...
4.5

200+ bought

ISK 8061

28% OFF
NOW Foods Sports Nutrition, Carbo Gain Powder Maltodextrin, Rapid Absorption, Energy Production, 12-Pound
US Store
NOW Foods

NOW Foods Sports Nutrition, Carbo Gain Powder Maltodextrin, Rapid Absorption, ...
4.6

200+ bought

ISK 8491 11729

Forzagen Lean Gainer Premium Mass Builder | Mass Gainer Protein Powder for Men & Women 12 Lbs, Creamy Vanilla
US Store
Forzagen

Forzagen Lean Gainer Premium Mass Builder | Mass Gainer Protein Powder for Men & ...
4.7

100+ bought

ISK 13542

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

ISK 13193

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

100+ bought

ISK 9807

ALPHA LION Gains Candy, Supplement Pills for Muscle Growth, Size, Strength, Nitric Oxide Booster, Muscle Builder, Use Daily to Upgrade Energy & Workout Performance, 60 Capsules RipFACTOR
US Store
ALPHA LION

ALPHA LION Gains Candy, Supplement Pills for Muscle Growth, Size, Strength, Nitric ...
4.2

100+ bought

ISK 8069

Project AD Matador Muscle Builder Enhances Muscle Pumps and Promotes Muscle Growth And Energy 60 Capsules
US Store
PROJECT AD LLC

Project AD Matador Muscle Builder Enhances Muscle Pumps and Promotes Muscle Growth ...
4.4

100+ bought

ISK 9899

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 & ...
4.3

100+ bought

ISK 8069

MRM Nutrition Gainer Protein with Probiotics & Postbiotics - 18 Servings | Vanilla Flavored for Men & Women, 25g of Whey Protein Concentrate & Isolate, Micellar Casein, Digestive Enzymes
US Store
MRM

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

100+ bought

ISK 8709

10% OFF
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

100+ bought

ISK 20886 23122

BSN TRUE-MASS Weight Gainer, Mass Gainer Protein Powder, Post Workout Muscle Recovery Powder, Muscle Gainer, 41 Carbs to Protein Ratio, Vanilla Ice Cream, 10.25 Pound, 15 Servings
US Store
BSN

BSN TRUE-MASS Weight Gainer, Mass Gainer Protein Powder, Post Workout Muscle ...
4.5

100+ bought

ISK 16661

1200MG Beta Ecdysterone Supplement, 98% Maximum Purity Ecdysterone Supplements for Lean Muscle Mass, Athletic Performance & Strength, 60 Capsules
US Store
Thalacy

1200MG Beta Ecdysterone Supplement, 98% Maximum Purity Ecdysterone Supplements for ...
4.3

100+ bought

ISK 4775

48% OFF
The Genius Brand Genius Muscle - Muscle Health Supplement for Growth, Endurance & Recovery - Non-Hormonal Formula - 6 Organic Mushrooms - Naturally-Sweetened - 30 Servings - Strawberry Vanilla
US Store
The Genius Brand

The Genius Brand Genius Muscle - Muscle Health Supplement for Growth, Endurance & ...
4.3

100+ bought

ISK 8985 17219

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

ISK 13193

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

ISK 17219

MuscleMeds Carnivor Mass Diet Supplement, Vanilla Caramel, 5.78 Pound 002658
US Store
MuscleMeds

MuscleMeds Carnivor Mass Diet Supplement, Vanilla Caramel, 5.78 Pound 002658
4.4

50+ bought

ISK 11075

16% OFF
Nutrition Mass Pro High Protein Mass Gainer
US Store
G6 Sports

Nutrition Mass Pro High Protein Mass Gainer
4.5

50+ bought

ISK 19049 22709

RIVAL NUTRITION Clean Gainer Protein Powder Cinnamon Toast Cereal, 10 lb | High Protein Lean Gainer, 550 Quality Calories, 30g Protein, 97g Multi-Source Carbs, Natural Flavors, Clean Ingredients
US Store
Rivalus

RIVAL NUTRITION Clean Gainer Protein Powder Cinnamon Toast Cereal, 10 lb | High ...
4.7

50+ bought

ISK 13559

Nutricost Mass Gainer Powder Cookies N Cream 6.9 LBS, GMO-Free | 50 Grams of Protein Per Serving
US Store
Nutricost

Nutricost Mass Gainer Powder Cookies N Cream 6.9 LBS, GMO-Free | 50 Grams of ...
4.2

50+ bought

ISK 10806

Its Just! - Mass Gainer Powder, 100% Maltodextrin Complex Carbohydrates, Sustained Energy, Rapid Absorption, Non-GMO, Easily Add to Any Protein Shake, 3lbs / 38 Servings
US Store
It's Just!

Its Just! - Mass Gainer Powder, 100% Maltodextrin Complex Carbohydrates, Sustained ...
4.4

50+ bought

ISK 5324

Naturade All Natural Weight Gain Drink Mix - Gluten Free, Delicious Taste, 1600 Calories per Serving - Mass Gainer w/Carbohydrates & Protein - Chocolate, 40.6 Ounce 24 Servings
US Store
Naturade

Naturade All Natural Weight Gain Drink Mix - Gluten Free, Delicious Taste, 1600 ...
4.1

50+ bought

ISK 9121

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

50+ bought

ISK 7520

5% Nutrition Rich Piana BiggerByTheDay | Anabolic Muscle Builder,Hardcore Mass Gainer | Turkesterone,HICA,Epicatechin,Leucine | 120 Capsules 30 Servings1 item
US Store
5% Nutrition

5% Nutrition Rich Piana BiggerByTheDay | Anabolic Muscle Builder,Hardcore Mass ...
4.1

50+ bought

ISK 11912

15% OFF
Natural Endurance and Oxygen Supplement to Help VO2 max w/Rhodiola Rosea, B12, and Alpha Lipoic Acid 120 Capsules 30 Day Supply
US Store
VO2-Boost

Natural Endurance and Oxygen Supplement to Help VO2 max w/Rhodiola Rosea, B12, and ...
4.3

50+ bought

ISK 9306 10989

15% OFF
PEScience Smart Mass Gainer, Gourmet Chocolate, 14 Packets | Lean Muscle Weight Gainer, Whey Protein & Casein Protein Blend, Slow-Digesting Carbs, Maltodextrin-Free
US Store
PEScience

PEScience Smart Mass Gainer, Gourmet Chocolate, 14 Packets | Lean Muscle Weight ...
4.8

50+ bought

ISK 5324 6239

Shop Premium Weight Gain Supplements Online with Ubuy Iceland

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 Iceland 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.