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Critical Mass Professional Lean Mass Gainer Chocolate 2.4Kg (40 Servings)

by Applied Nutrition

4 reviews analysed · 1 sources · Last verified: 19 Feb 2026 · Price data: 19 Feb 2026 · Confidence: 17% · Reviewed by Bart, Health & Tech Enthusiast
Critical Mass Professional Lean Mass Gainer Chocolate 2.4Kg (40 Servings)
70
Overall Score
Good

Compare Prices

Holland & Barrett
£75.00 View →

Applied Nutrition Critical Mass Professional is a high-calorie lean mass gainer delivering 1,000+ calories per serving with protein, carbs, creatine, and glutamine. Best for Hard gainers seeking muscle growth and Beginners new to mass gainers.

According to the AIScored 0–100 scoring system, Critical Mass Professional Lean Mass Gainer Chocolate 2.4Kg (40 Servings) by Applied Nutrition scores 70.0/100, ranking #6 out of 23 products in Mass Gainers (2026). Strongest category: Effectiveness (80.0/100). Weakest: Certifications (30.0/100).

Data quality note: this page currently has limited evidence coverage (low review/source volume or lower confidence). Treat this as directional and cross-check with primary sources.

Is Critical Mass Professional Lean ... worth buying?

“Applied Nutrition Critical Mass Professional scores 70/100, and every reviewer raved about the taste and mixing quality—genuinely rare in mass gainers. At 1,000+ calories per serving with creatine and glutamine, it's an efficient muscle-builder that won't upset sensitive digestive systems even for beginners.”

— AIScored Editorial Team, Feb 2026

What Do Reviewers Say?

No directly attributable source excerpts are available for this product yet. The summary above is based on the currently stored dataset and will be expanded as new sources are ingested.

How does Critical Mass Professional Lean Mass ... score?

Detailed score breakdown and key findings from our analysis of 4 reviews across 1 source.

Effectiveness How well the product works based on user reviews
80.0/100
Good
Ingredient Quality Clean label, bioavailable forms, minimal fillers
70.0/100
Good
Value for Money Price relative to quality and quantity
80.0/100
Good
Side Effects Profile Higher = fewer/milder side effects reported
80.0/100
Good
Certifications & Testing Third-party testing, GMP, and quality certifications
30.0/100
Below Average
Overall Score Weighted overall recommendation
70.0/100
Good

Pros

  • +Excellent taste and smooth mixing (all reviewers noted this)
  • +1,000+ calories per serving supports lean muscle gain efficiently
  • +Well-tolerated by beginners and sensitive digestive systems
  • +Good value for price point (noted by reviewers)
  • +Includes creatine monohydrate and glutamine for recovery support

Cons

  • -Not third-party tested or certified (no banned substance verification)
  • -High calorie density may not suit users with smaller appetites or cutting phases
  • -Only 4 reviews available; limited sample size for reliability assessment
  • -May contain added sugars typical of mass gainers (nutritional label not provided)

Best For

Hard gainers seeking muscle growth Beginners new to mass gainers Athletes with higher caloric needs Individuals with sensitive digestive systems Budget-conscious fitness enthusiasts

Watch Out

  • !No third-party testing; verify ingredients independently if banned substance concerns exist
  • !High calorie content may cause bloating or GI discomfort in individuals with lower caloric needs
  • !Limited long-term user feedback; only short-term (few weeks) positive reports available
  • !Contains creatine; ensure adequate hydration and monitor kidney health if using long-term

What is Critical Mass Professional Lean Mass Gainer Chocolate 2.4Kg (40 Servings)?

Critical Mass Professional Lean Mass Gainer Chocolate 2.4Kg (40 Servings) is a mass gainers product by Applied Nutrition, scoring 70.0/100 on AIScored.

  • Applied Nutrition Critical Mass Professional Lean Mass Gainer Chocolate 2.4Kg (40 Servings)The UK's most trusted mass gainer for serious size & strength – Critical Mass Professional is the ultimate high-calorie weight gainer.1,000+ calories per serving – packed with high-quality protein & carbs – delivers a caloric surplus essential for lean muscle gain.Powerful creatine & glutamine complex for performance & recovery – enhanced with creatine monohydrate.Optimal weight gain formula for hard gainers & athletes.Easy mixing & delicious flavours for maximum enjoyment – designed for convenience, this instantized protein powder mixes effortlessly in water or milk, creating a smooth, creamy texture with no lumps or grittiness.UK: Applied Nutrition Limited, Trio, Acornfield Road, Knowsley, L33 7UGEU: Applied Nutrition Limited, Unit 495, Moat House, 54 Bloomfield Avenue, Belfast, BT5 5AD.

Is Critical Mass Professional Lean Mass Gainer Chocolate 2.4Kg (40 Servings) Independently Tested?

?

No Third-Party Testing Visible

We could not find evidence of independent third-party testing for this product. This doesn't mean it's unsafe, but independent verification provides additional assurance.

How We Score Supplements

Our methodology analyses review data, ingredient science, and product information, then scores each product on a 0-100 scale across evidence-based categories:

1

Effectiveness

How well the product delivers its claimed benefits, based on reviews and ingredient evidence.

2

Ingredient Quality

Bioavailable forms, clinically effective dosages, clean label, minimal fillers.

3

Value for Money

Price relative to ingredient quality, dosage count, and effectiveness.

4

Side Effects Profile

Higher score = fewer side effects. 100 means virtually no adverse reactions reported.

5

Certifications & Testing

Third-party lab testing, GMP certification, and independent quality verification.

6

Overall Score

Weighted combination of all factors. Our bottom-line recommendation.

How Does Critical Mass Professional Lean Mass Gainer Chocolate 2.4Kg (40 Servings) Compare?

See how this product stacks up against the top-rated mass gainers in our database.

Product Score Price
Critical Mass Professional Lean ... (this) 70.0 £75.00
Critical Mass Professional Lean ... 80.0 £40.00
Critical Mass Professional Lean ... 74.0 £52.95

Price History (90 days)

Quick Facts

Vegan
No

Frequently Asked Questions

Is Critical Mass Professional Lean Mass Gainer Chocolate 2.4Kg (40 Servings) worth buying in 2026?
Critical Mass Professional Lean Mass Gainer Chocolate 2.4Kg (40 Servings) scores 70.0/100 in our analysis, based on 4 reviews. Applied Nutrition Critical Mass Professional is a high-calorie lean mass gainer delivering 1,000+ calories per serving with protein, carbs, creatine, and glutamine. All four Holland & Barrett reviewers gave 5-star ratings, praising the taste, mixabil...
What is the best price for Critical Mass Professional Lean Mass Gainer Chocolate 2.4Kg (40 Servings) in the UK?
The best price we found is £75.00 at Holland & Barrett. We compare prices from 1 UK retailer and update them regularly.
What are the pros and cons of Critical Mass Professional Lean Mass Gainer Chocolate 2.4Kg (40 Servings)?
Pros: Excellent taste and smooth mixing (all reviewers noted this). 1,000+ calories per serving supports lean muscle gain efficiently. Well-tolerated by beginners and sensitive digestive systems. Cons: Not third-party tested or certified (no banned substance verification). High calorie density may not suit users with smaller appetites or cutting phases. Only 4 reviews available; limited sample size for reliability assessment.
Is Critical Mass Professional Lean Mass Gainer Chocolate 2.4Kg (40 Servings) third-party tested?
We could not find evidence of third-party testing for this product. While this does not mean the product is unsafe, independent testing provides additional quality assurance.
How does Critical Mass Professional Lean Mass Gainer Chocolate 2.4Kg (40 Servings) compare to Critical Mass Professional Lean Mass Gainer Banana 2.4kg (16 Servings)?
Critical Mass Professional Lean Mass Gainer Chocolate 2.4Kg (40 Servings) scores 70.0/100 while Critical Mass Professional Lean Mass Gainer Banana 2.4kg (16 Servings) scores 80.0/100. Read full comparison →

Disclaimer: AIScored provides research-backed summaries based on publicly available reviews and product information. This is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Affiliate links may earn us a commission at no extra cost to you.

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