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10 bestMuscle Gainersof December 2025

112M consumers helped this year.

5% off

1

Optimum Nutrition Gold Standard 100% Whey Muscle Building and Recovery Protein Powder With Naturally Occurring Glutamine and BCAA Amino Acids, Extreme Milk Chocolate Flavour, 28 Servings, 896 g

Optimum Nutrition Gold Standard 100% Whey Muscle Building and Recovery Protein Powder With Naturally Occurring Glutamine and BCAA Amino Acids, Extreme Milk Chocolate Flavour, 28 Servings, 896 g

Optimum Nutrition Gold Standard 100% Whey Muscle Building and Recovery Protein Powder With Naturally Occurring Glutamine and BCAA Amino Acids, Extreme Milk Chocolate Flavour, 28 Servings, 896 g

Optimum Nutrition

9.7

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15% off

2

Optimum Nutrition Serious Mass Protein Powder with Creatine, Glutamine, 25 Vitamins and Minerals, Strawberry Flavour, 16 Servings, 5.45KG

Optimum Nutrition Serious Mass Protein Powder with Creatine, Glutamine, 25 Vitamins and Minerals, Strawberry Flavour, 16 Servings, 5.45KG

Optimum Nutrition Serious Mass Protein Powder with Creatine, Glutamine, 25 Vitamins and Minerals, Strawberry Flavour, 16 Servings, 5.45KG

Optimum Nutrition

9.4

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13% off

3

Optimum Nutrition Serious Mass Protein Powder with Creatine, Glutamine, 25 Vitamins & Minerals, High Calorie Mass Gainer, Chocolate Flavour, 8 Servings, 2.73kg, Packaging May Vary

Optimum Nutrition Serious Mass Protein Powder with Creatine, Glutamine, 25 Vitamins & Minerals, High Calorie Mass Gainer, Chocolate Flavour, 8 Servings, 2.73kg, Packaging May Vary

Optimum Nutrition Serious Mass Protein Powder with Creatine, Glutamine, 25 Vitamins & Minerals, High Calorie Mass Gainer, Chocolate Flavour, 8 Servings, 2.73kg, Packaging May Vary

Optimum Nutrition

9.1

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4

The Bulk Protein Company, SERIOUS GAINZ - Whey Protein Powder - Weight Gain, Mass Gainer - 30g Protein Powders (Strawberry, 5kg)

The Bulk Protein Company, SERIOUS GAINZ - Whey Protein Powder - Weight Gain, Mass Gainer - 30g Protein Powders (Strawberry, 5kg)

The Bulk Protein Company, SERIOUS GAINZ - Whey Protein Powder - Weight Gain, Mass Gainer - 30g Protein Powders (Strawberry, 5kg)

The Bulk Protein Company

8.8

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13% off

5

USN Muscle Fuel All-In-One Muscle Mass Gainer, Cookies & Cream Flavour, 54g Protein Powder, 5g Creatine Powder & 5g BCAA Powder For Maximum Muscle Growth, Post Workout Recovery Drink Mix - 2kg

USN Muscle Fuel All-In-One Muscle Mass Gainer, Cookies & Cream Flavour, 54g Protein Powder, 5g Creatine Powder & 5g BCAA Powder For Maximum Muscle Growth, Post Workout Recovery Drink Mix - 2kg

USN Muscle Fuel All-In-One Muscle Mass Gainer, Cookies & Cream Flavour, 54g Protein Powder, 5g Creatine Powder & 5g BCAA Powder For Maximum Muscle Growth, Post Workout Recovery Drink Mix - 2kg

USN

8.5

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OtherRelated productsUp to 14% off

Kinetica OatGain Weight Gainer 600+ Calories & 47g Protein per Serving, 2.4 kg, 15 Servings Raspberry Yoghurt Flavour

Kinetica OatGain Weight Gainer 600+ Calories & 47g Protein per Serving, 2.4 kg, 15 Servings Raspberry Yoghurt Flavour

Dymatize Super Mass Gainer Rich Chocolate 2943g - Weight Gainer Powder + Carbohydrates, Creapure Creatine, BCAAs, Casein

Dymatize Super Mass Gainer Rich Chocolate 2943g - Weight Gainer Powder + Carbohydrates, Creapure Creatine, BCAAs, Casein

Animal M-Stak - Non-Hormonal Hard Gainers Muscle Building Stack with Energy Complex - 21 Count

Animal M-Stak - Non-Hormonal Hard Gainers Muscle Building Stack with Energy Complex - 21 Count

Weider Mega Mass 4000 (4kg) Chocolate Flavour, Mass Gainer with High Content of Complex Carbohydrate Blend, for Energy and Muscle Mass

Weider Mega Mass 4000 (4kg) Chocolate Flavour, Mass Gainer with High Content of Complex Carbohydrate Blend, for Energy and Muscle Mass

6

Reflex Nutrition Instant Mass Heavyweight - Mass Gainer - Over 1000 Kcal per Serving, 60g Protein, Creatine - High Calorie Post Workout or Before Bed Protein Shake (Strawberries & Cream, 5.4 kg)

Reflex Nutrition Instant Mass Heavyweight - Mass Gainer - Over 1000 Kcal per Serving, 60g Protein, Creatine - High Calorie Post Workout or Before Bed Protein Shake (Strawberries & Cream, 5.4 kg)

Reflex Nutrition Instant Mass Heavyweight - Mass Gainer - Over 1000 Kcal per Serving, 60g Protein, Creatine - High Calorie Post Workout or Before Bed Protein Shake (Strawberries & Cream, 5.4 kg)

Reflex

8.2

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11% off

7

USN Hyperbolic Mass Dutch Chocolate 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 Hyperbolic Mass Dutch Chocolate 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 Hyperbolic Mass Dutch Chocolate 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

7.9

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8

Boditronics Mass Attack Heavyweight Mass Gainer Powder for High Protein and High-Calorie Weight Gainer Protein Powder with 5g Creatine, BCAA, Glutamine and Beta Alanine (Milk Chocolate)

Boditronics Mass Attack Heavyweight Mass Gainer Powder for High Protein and High-Calorie Weight Gainer Protein Powder with 5g Creatine, BCAA, Glutamine and Beta Alanine (Milk Chocolate)

Boditronics Mass Attack Heavyweight Mass Gainer Powder for High Protein and High-Calorie Weight Gainer Protein Powder with 5g Creatine, BCAA, Glutamine and Beta Alanine (Milk Chocolate)

Boditronics

7.6

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9

Buddy & Lola Dog Weight Gainer Supplement - Protein For Dogs, Helps Build Muscle, Aids Recovery, Great for Fussy Eaters, A Must Have For Rescue Dogs Who Need to Gain Weight and Build Muscle

Buddy & Lola Dog Weight Gainer Supplement - Protein For Dogs, Helps Build Muscle, Aids Recovery, Great for Fussy Eaters, A Must Have For Rescue Dogs Who Need to Gain Weight and Build Muscle

Buddy & Lola Dog Weight Gainer Supplement - Protein For Dogs, Helps Build Muscle, Aids Recovery, Great for Fussy Eaters, A Must Have For Rescue Dogs Who Need to Gain Weight and Build Muscle

Buddy & Lola

7.3

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10

Reflex Nutrition One Stop® Xtreme - Serious Mass Gainer - All in One Protein Powder - 55g Protein, 10.3g BCAAs, 5,000mg Creatine - Muscle Building Protein Shake (Vanilla Ice Cream, 4.35kg)

Reflex Nutrition One Stop® Xtreme - Serious Mass Gainer - All in One Protein Powder - 55g Protein, 10.3g BCAAs, 5,000mg Creatine - Muscle Building Protein Shake (Vanilla Ice Cream, 4.35kg)

Reflex Nutrition One Stop® Xtreme - Serious Mass Gainer - All in One Protein Powder - 55g Protein, 10.3g BCAAs, 5,000mg Creatine - Muscle Building Protein Shake (Vanilla Ice Cream, 4.35kg)

Reflex

7.0

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