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Applied Nutrition Critical Mass Professional

Name: Applied Nutrition Critical Mass Professional
Rating: 4.38 (32 reviews)

£32.99 £35.99

Free Delivery When You Spend £100

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Build size the smart way with a reduced-sugar, high-calorie mass gainer designed for quality lean mass
Power explosive sessions with a creatine matrix that increases performance in short-term, high‑intensity exercise
Recover and rebuild with 42 g of fast and slow-release protein per serving, including ISO-XP 95% whey isolate
Fuel up with added CLA and MCTs for clean, convenient calories that support your bulk without the bloat
Stay on track with chromium to support normal macronutrient metabolism and Halal Certified peace of mind

Applied Nutrition Critical Mass Professional – High-Calorie Lean Mass Gainer

Struggling to eat enough to grow? Applied Nutrition’s Critical Mass Professional makes hitting your calorie and protein targets simple, delicious, and consistent. This powerful mass gainer was engineered for lifters, athletes, and hard-gainers who want size without sacrificing quality.

Each serving delivers a huge calorie hit alongside 42 g of fast and slowly digested protein – including premium ISO-XP 95% Whey Protein Isolate – to feed your muscles for hours. The updated reduced sugar formula helps you stay leaner while you add size, so you can bulk with intention rather than guesswork.

What makes Critical Mass Professional different?

Performance you can feel: A multi-source Creatine matrix to increase physical performance in successive bursts of short-term, high‑intensity exercise.
Recover harder, grow stronger: Enhanced with HMB, Glutamine, and Leucine – the building blocks athletes trust for tough training phases.
Premium protein blend: 42 g of protein per serving, featuring ISO-XP 95% whey isolate for fast uptake plus slower-digesting proteins for sustained support.
Clean calorie support: Added healthy fats from CLA and MCT powder to help you increase daily calories without relying on junk.
Metabolic support: Includes Chromium, which contributes to normal macronutrient metabolism.

Who is it for?

If you’re a hard-gainer, in a bulking phase, or simply too busy to prep high-calorie meals, Critical Mass Professional is your all-in-one, high-calorie protein & carbohydrate shake. It’s also Halal Certified and pairs perfectly with Applied Nutrition iDRIVE Insulin Driver when you want to dial in nutrient timing.

How to fit it into your day

Use between meals, post‑workout, or any time you need a convenient calorie and protein boost to keep your growth on track. Stack with your favourite Applied Nutrition essentials to customise your bulk.

Why athletes choose Applied Nutrition: Trusted UK sports nutrition, uncompromising ingredient selection, and formulations built for real-world results.

Recommended to be used with iDRIVE Insulin Driver.
Halal Certified Product.

Calories 566kcal kcal

0%

RDI

Protein 42g g

0%

RDI

Fat 10g g

0%

RDI

Sat Fat 2.1g g

0%

RDI

Salt 0 g

0%

RDI

Carbs 74g g

0%

RDI

Values per serving

Please note that this information may be subject to change.
For the most accurate and up-to-date details, please refer to the product packaging.

Container Size

6kg

Serving Size

150g

Cost Per Serving

£0.82

per serving

Expiry

2.4kg / Banana 30-06-2028

2.4kg / Chocolate 30-06-2028

2.4kg / Strawberry 31-01-2028

2.4kg / Vanilla 30-04-2028

2.4kg / White Chocolate Raspberry 31-10-2027

6kg / Banana 28-02-2028

6kg / Chocolate 31-10-2027

6kg / Strawberry 31-01-2028

6kg / Vanilla 30-06-2028

6kg / White Chocolate Raspberry 31-10-2027

Barcodes

2.4kg / Banana 634158793806

2.4kg / Chocolate 634158793820

2.4kg / Strawberry 5056555205068

2.4kg / Vanilla 634158793844

2.4kg / White Chocolate Raspberry 5056555205082

6kg / Banana 634158793868

6kg / Chocolate 634158793882

6kg / Strawberry 5056555204528

6kg / Vanilla 5056555204535

6kg / White Chocolate Raspberry 634158793912

Directions

Warnings

Ingredients

Ingredients by Flavor: Banana Flavour Organic Ground Oats
Maltodextrin
Protein Blend (Milk Protein Isolate (Milk)
Whey Protein Isolate (Milk)
Whey Protein Concentrate (Milk))
L-Leucine
Glutamine Peptides (Wheat)
Creatine Monohydrate
CLA Powder (Conjugated Linoleic Acid)
MCT (Medium Chain Triglycerides)
HMB (Beta-Hydroxy Beta-Methylbutyrate)
Colour (Turmeric Extract)
Flavouring
Emulsifier (Soy Lecithin)
HICA (Alpha-Hydroxy Isocaproic Acid)
ALA (Alpha Lipoic Acid)
DigeZyme® Multi-Enzyme Complex (Amylase
Protease
Cellulase
Lactase
Lipase)
Sweetener (Sucralose)
LactoSpore® (Bacillus Coagulans)
Chromium (as Chromium Picolinate). Chocolate Flavour Organic Ground Oats
Maltodextrin
Protein Blend (Milk Protein Isolate (Milk)
Whey Protein Isolate (Milk)
Whey Protein Concentrate (Milk))
Fat Reduced Cocoa Powder
L-Leucine
Glutamine Peptides (Wheat)
Creatine Monohydrate
CLA Powder (Conjugated Linoleic Acid)
MCT (Medium Chain Triglycerides)
HMB (Beta-Hydroxy Beta-Methylbutyrate)
Flavouring
Emulsifier (Soy Lecithin)
HICA (Alpha-Hydroxy Isocaproic Acid)
ALA (Alpha Lipoic Acid)
DigeZyme® Multi-Enzyme Complex (Amylase
Protease
Cellulase
Lactase
Lipase)
Sweetener (Sucralose)
LactoSpore® (Bacillus Coagulans)
Chromium (as Chromium Picolinate). Chocolate Mint Flavour Organic Ground Oats (Gluten)
Maltodextrin
Protein Blend (MPI 90: Milk Protein Isolate (Milk)
Whey Protein Isolate (Milk)
WPC 80: Whey Protein Concentrate (Milk))
Fat Reduced Cocoa Powder
L-Leucine
Glutamine Peptides (Wheat)
Creatine Monohydrate
CLA Powder (Conjugated Linoleic Acid)
MCT (Medium Chain Triglycerides)
HMB (Beta-Hydroxy Beta-Methylbutyrate)
Flavouring
Emulsifier (Soy Lecithin)
HICA (Alpha-Hydroxy Isocaproic Acid)
ALA (Alpha Lipoic Acid)
DigeZyme® Enzyme Complex (Amylase
Protease
Cellulase
Lactase
Lipase)
Sweetener (Sucralose)
LactoSpore® (Bacillus Coagulans)
Chromium (as Chromium Picolinate). Strawberry Flavour Organic Ground Oats
Maltodextrin
Protein Blend (Milk Protein Isolate (Milk)
Whey Protein Isolate (Milk)
Whey Protein Concentrate (Milk))
L-Leucine
Glutamine Peptides (Wheat)
Creatine Monohydrate
CLA Powder (Conjugated Linoleic Acid)
MCT (Medium Chain Triglycerides)
HMB (Beta-Hydroxy Beta-Methylbutyrate)
Colour (Beetroot Powder)
Flavouring
Emulsifier (Soy Lecithin)
HICA (Alpha-Hydroxy Isocaproic Acid)
ALA (Alpha Lipoic Acid)
DigeZyme® Multi-Enzyme Complex (Amylase
Protease
Cellulase
Lactase
Lipase)
Sweetener (Sucralose)
LactoSpore® (Bacillus Coagulans)
Chromium (as Chromium Picolinate). Vanilla Flavour Organic Ground Oats
Maltodextrin
Protein Blend (Milk Protein Isolate (Milk)
Whey Protein Isolate (Milk)
Whey Protein Concentrate (Milk))
L-Leucine
Glutamine Peptides (Wheat)
Creatine Monohydrate
CLA Powder (Conjugated Linoleic Acid)
MCT (Medium Chain Triglycerides)
HMB (Beta-Hydroxy Beta-Methylbutyrate)
Flavouring
Emulsifier (Soy Lecithin)
HICA (Alpha-Hydroxy Isocaproic Acid)
ALA (Alpha Lipoic Acid)
DigeZyme® Multi-Enzyme Complex (Amylase
Protease
Cellulase
Lactase
Lipase)
Sweetener (Sucralose)
LactoSpore® (Bacillus Coagulans)
Chromium (as Chromium Picolinate). White Chocolate Raspberry Flavour Organic Ground Oats
Maltodextrin
Protein Blend (Milk Protein Isolate (Milk)
Whey Protein Isolate (Milk)
Whey Protein Concentrate (Milk))
L-Leucine
Glutamine Peptides (Wheat)
Creatine Monohydrate
CLA Powder (Conjugated Linoleic Acid)
MCT (Medium Chain Triglycerides)
HMB (Beta-Hydroxy Beta-Methylbutyrate)
Colour (Beetroot Powder)
Flavouring
Emulsifier (Soy Lecithin)
HICA (Alpha-Hydroxy Isocaproic Acid)
ALA (Alpha Lipoic Acid)
DigeZyme® Multi-Enzyme Complex (Amylase
Protease
Cellulase
Lactase
Lipase)
Sweetener (Sucralose)
LactoSpore® (Bacillus Coagulans)
Chromium (as Chromium Picolinate). ALLERGENS: Please see ingredients in Bold. Made in a facility that handles milk
egg
soy
fish
cereals containing gluten and products thereof.

Discover

Shop The Applied Nutrition Collection

5 stars: 24 (75%)
4 stars: 4 (13%)
3 stars: 0 (0%)
2 stars: 0 (0%)
1 star: 4 (13%)

Good weight gainer

Good weight gainer, very good ingredients, very good mixability and good taste, highly recommended.

Banana flavour is awful

Banana favour is diabolically terrible. It smells nice, but after a few gulps, it begins tasting more and more 'chemical'. Near the end, it turns very bitter and just about bearable.

Avoid this flavour at all costs.

good

fairly food

Does the job

Excellent product

Nice

Nice

good

fairly food

Does the job

Excellent product

Banana flavour is awful

Banana favour is diabolically terrible. It smells nice, but after a few gulps, it begins tasting more and more 'chemical'. Near the end, it turns very bitter and just about bearable.

Avoid this flavour at all costs.

Almost perfect.

Mixes easy, tastes good. Calories provided by organic oats, not loads of sugar. I always add a couple of eggs to this after every workout to boost the macros, perfect meal replacement / substitute when you can't eat enough for recovery / gains.

good

fairly food

Products performance

Nice product and easy to mix. And it has make me to gain more weight within a short period of time.

Great tasting and effective

Bought this for my partner who is very ill, has no appetite, had lost a lot of weight, and needs extra nutrition and calories. This product is effective and delivers on both fronts. It has no particular smell. Easy to use, it blends nicely with any other ingredients you may wish to add to your shake. It mixes well in a blender and has a great, smooth and creamy taste on its own. Since my partner is in dire need of vitamins and minerals I also add some frozen spinach, carrots and some fresh fruits to his shake. For calories, I top it up with some peanut butter and Nutella. It may seem excessive, but he splits this shake in half and drinks it twice a day with his medications. In one month he gained a stone, which I was very pleased with, though he still needs to gain more weight. His blood work shows improvement in all areas. Because of all other things I add to the shake I use about 1.5 a scoop , which is enough for our needs. The tub is very big, and with 2 scoops a day it will still last for at least a month. It may seem a bit pricey, but considering the quality and how long it lasts, in my opinion it is a good value for money. When it comes to the size of the tub and the amount of the product in it do not make a mistake of thinking that there is some product missing. I don't believe there is. The fact is that all products in powder form settle down once packed in a tub and visually go down in volume after a while; what matters is the weight and that it remains the same as it was at the time of packaging. If you have doubts, which I don't, I suggest you weigh the powder before coming to a conclusion that there is something amiss. This was my second purchase of this protein and I am so satisfied with its quality and performance that I intend to continue buying it for my partner even after he recovers.

Banana flavour is awful

Banana favour is diabolically terrible. It smells nice, but after a few gulps, it begins tasting more and more 'chemical'. Near the end, it turns very bitter and just about bearable.

Avoid this flavour at all costs.

Nice

Nice

Great tasting and effective

Bought this for my partner who is very ill, has no appetite, had lost a lot of weight, and needs extra nutrition and calories. This product is effective and delivers on both fronts. It has no particular smell. Easy to use, it blends nicely with any other ingredients you may wish to add to your shake. It mixes well in a blender and has a great, smooth and creamy taste on its own. Since my partner is in dire need of vitamins and minerals I also add some frozen spinach, carrots and some fresh fruits to his shake. For calories, I top it up with some peanut butter and Nutella. It may seem excessive, but he splits this shake in half and drinks it twice a day with his medications. In one month he gained a stone, which I was very pleased with, though he still needs to gain more weight. His blood work shows improvement in all areas. Because of all other things I add to the shake I use about 1.5 a scoop , which is enough for our needs. The tub is very big, and with 2 scoops a day it will still last for at least a month. It may seem a bit pricey, but considering the quality and how long it lasts, in my opinion it is a good value for money. When it comes to the size of the tub and the amount of the product in it do not make a mistake of thinking that there is some product missing. I don't believe there is. The fact is that all products in powder form settle down once packed in a tub and visually go down in volume after a while; what matters is the weight and that it remains the same as it was at the time of packaging. If you have doubts, which I don't, I suggest you weigh the powder before coming to a conclusion that there is something amiss. This was my second purchase of this protein and I am so satisfied with its quality and performance that I intend to continue buying it for my partner even after he recovers.

Does the job

Excellent product

Good weight gainer

Good weight gainer, very good ingredients, very good mixability and good taste, highly recommended.

Great tasting and effective

Bought this for my partner who is very ill, has no appetite, had lost a lot of weight, and needs extra nutrition and calories. This product is effective and delivers on both fronts. It has no particular smell. Easy to use, it blends nicely with any other ingredients you may wish to add to your shake. It mixes well in a blender and has a great, smooth and creamy taste on its own. Since my partner is in dire need of vitamins and minerals I also add some frozen spinach, carrots and some fresh fruits to his shake. For calories, I top it up with some peanut butter and Nutella. It may seem excessive, but he splits this shake in half and drinks it twice a day with his medications. In one month he gained a stone, which I was very pleased with, though he still needs to gain more weight. His blood work shows improvement in all areas. Because of all other things I add to the shake I use about 1.5 a scoop , which is enough for our needs. The tub is very big, and with 2 scoops a day it will still last for at least a month. It may seem a bit pricey, but considering the quality and how long it lasts, in my opinion it is a good value for money. When it comes to the size of the tub and the amount of the product in it do not make a mistake of thinking that there is some product missing. I don't believe there is. The fact is that all products in powder form settle down once packed in a tub and visually go down in volume after a while; what matters is the weight and that it remains the same as it was at the time of packaging. If you have doubts, which I don't, I suggest you weigh the powder before coming to a conclusion that there is something amiss. This was my second purchase of this protein and I am so satisfied with its quality and performance that I intend to continue buying it for my partner even after he recovers.

Almost perfect.

Mixes easy, tastes good. Calories provided by organic oats, not loads of sugar. I always add a couple of eggs to this after every workout to boost the macros, perfect meal replacement / substitute when you can't eat enough for recovery / gains.

good

fairly food

Products performance

Nice product and easy to mix. And it has make me to gain more weight within a short period of time.

Products performance

Nice product and easy to mix. And it has make me to gain more weight within a short period of time.

Good weight gainer

Good weight gainer, very good ingredients, very good mixability and good taste, highly recommended.

Almost perfect.

Mixes easy, tastes good. Calories provided by organic oats, not loads of sugar. I always add a couple of eggs to this after every workout to boost the macros, perfect meal replacement / substitute when you can't eat enough for recovery / gains.

Banana flavour is awful

Banana favour is diabolically terrible. It smells nice, but after a few gulps, it begins tasting more and more 'chemical'. Near the end, it turns very bitter and just about bearable.

Avoid this flavour at all costs.

Nice

Nice

Good weight gainer

Good weight gainer, very good ingredients, very good mixability and good taste, highly recommended.

Great tasting and effective

Bought this for my partner who is very ill, has no appetite, had lost a lot of weight, and needs extra nutrition and calories. This product is effective and delivers on both fronts. It has no particular smell. Easy to use, it blends nicely with any other ingredients you may wish to add to your shake. It mixes well in a blender and has a great, smooth and creamy taste on its own. Since my partner is in dire need of vitamins and minerals I also add some frozen spinach, carrots and some fresh fruits to his shake. For calories, I top it up with some peanut butter and Nutella. It may seem excessive, but he splits this shake in half and drinks it twice a day with his medications. In one month he gained a stone, which I was very pleased with, though he still needs to gain more weight. His blood work shows improvement in all areas. Because of all other things I add to the shake I use about 1.5 a scoop , which is enough for our needs. The tub is very big, and with 2 scoops a day it will still last for at least a month. It may seem a bit pricey, but considering the quality and how long it lasts, in my opinion it is a good value for money. When it comes to the size of the tub and the amount of the product in it do not make a mistake of thinking that there is some product missing. I don't believe there is. The fact is that all products in powder form settle down once packed in a tub and visually go down in volume after a while; what matters is the weight and that it remains the same as it was at the time of packaging. If you have doubts, which I don't, I suggest you weigh the powder before coming to a conclusion that there is something amiss. This was my second purchase of this protein and I am so satisfied with its quality and performance that I intend to continue buying it for my partner even after he recovers.

Does the job

Excellent product

Almost perfect.

Mixes easy, tastes good. Calories provided by organic oats, not loads of sugar. I always add a couple of eggs to this after every workout to boost the macros, perfect meal replacement / substitute when you can't eat enough for recovery / gains.