Myprotein Slow-Release Casein 2.5kg vs Dymatize ISO100 Hydrolyzed Whey Protein Isolate 2.2kg

Side-by-side AI analysis based on real user reviews from Reddit, Amazon, YouTube & more.

Score Comparison

Myprotein Slow-Release Casein 2.5kg
Dymatize ISO100 Hydrolyzed ...
Myprotein Slow-Release Casein 2.5kg
Myprotein
Dymatize ISO100 Hydrolyzed ...
Dymatize
Overall Score 7 8
Effectiveness 7/10 9/10
Best
Ingredient Quality 7/10 9/10
Best
Value for Money 9/10
Best
5/10
Side Effects 7/10 10/10
Best
Certifications 4/10 7/10
Best
Best Price £67.73
Cheapest
£89.99
Form Powder Powder
Dose 23g protein per 30g serving 25g protein per 32g serving
Third-Party Tested ✗ No ✓ Yes
Reviews Analysed 2 3

Myprotein Slow-Release Casein 2.5kg

Pros

  • +Significantly cheaper than ON Gold Standard Casein
  • +Cleaner ingredient list with fewer thickeners
  • +23g protein per serving from micellar casein
  • +Made in the UK

Cons

  • -Poor mixability — blender strongly recommended
  • -Limited to just 4 flavour options
  • -No third-party testing certification
  • -Bland taste compared to premium alternatives

Best For

Budget nighttime protein supplementation Price-conscious casein users
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Dymatize ISO100 Hydrolyzed Whey ...

Pros

  • +Outstanding taste — widely considered best-tasting isolate
  • +Ultra-lean macros: <1g sugar, <1g fat
  • +Hydrolyzed for rapid absorption and easy digestion
  • +Excellent for lactose-intolerant individuals

Cons

  • -Premium price — roughly double the cost of concentrate
  • -Marginal real-world benefit of hydrolysis for most users
  • -Limited availability in UK retail stores

Best For

Lactose-intolerant athletes Those prioritising taste and lean macros
View full review →
AI

AI Comparison Analysis

Myprotein Slow-Release Casein 2.5kg vs Dymatize ISO100 Hydrolyzed Whey Protein Isolate 2.2kg

Myprotein Slow-Release Casein 2.5kg: Myprotein Slow-Release Casein offers the same fundamental benefit as premium casein proteins — sustained amino acid release from micellar casein — at a significantly lower price. The 23g protein per serving is competitive, and the ingredient list is actually cleaner than ON's version with only one thickener and no carrageenan. The main trade-offs are poorer mixability (a blender is almost essential), limited flavour options, and the lack of third-party testing certification. For those who want nighttime casein without paying a premium, it represents strong value.

Scores: effectiveness: 7/10, ingredient_quality: 7/10, value_for_money: 9/10, side_effects: 7/10, certifications: 4/10, overall: 7/10

Dymatize ISO100 Hydrolyzed Whey Protein Isolate 2.2kg: Dymatize ISO100 is a premium hydrolyzed whey isolate that excels in protein purity, taste, and digestibility. With 25g protein, under 1g sugar, and under 1g fat per serving, it is one of the leanest options available. The hydrolysis process provides faster absorption, which may benefit post-workout recovery though the real-world advantage over standard isolate is debated. The taste, particularly Gourmet Chocolate, is widely considered best-in-class. The significant drawback is the price — roughly double that of budget whey concentrates — making it hard to justify unless you specifically need a lactose-free isolate.

Scores: effectiveness: 9/10, ingredient_quality: 9/10, value_for_money: 5/10, side_effects: 10/10, certifications: 7/10, overall: 8/10

Disclaimer: AIScored provides AI-generated comparisons based on publicly available reviews. This is not medical advice. Affiliate links may earn us a commission at no extra cost to you.