Price History (90 days)
Quick Facts
- Form
- Powder
- Dose
- 23g protein per 30g serving
- Serving
- 1 scoop (30g)
- Servings
- 83
- Vegan
- No
- Made in
- UK
Myprotein Slow-Release Casein 2.5kg
by Myprotein
An affordable micellar casein powder providing 23g of slow-digesting protein per serving. Designed for before bed or between meals when sustained amino acid delivery is desired. As with most Myprotein products, the value proposition is the standout feature — significantly cheaper than ON Casein at a similar protein content. Available in core flavours.
AI Review Summary
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.
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
Watch Out
- !Use a blender — shaker mixing produces lumps
Ingredients & Composition
Active Ingredients
- Protein
- 23g per serving
Other Ingredients
Micellar Casein (Milk), Flavouring, Emulsifier (Soy Lecithin), Thickener (Xanthan Gum), Sweetener (Sucralose)
Clean Label Analysis
Cleaner additive profile than ON Casein — uses only xanthan gum as a thickener versus four thickeners in the ON version. No carrageenan. A simpler, more straightforward formula which is a genuine advantage.
Quality & Testing
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.
Additional Specifications
- Type
- Sports
- Form
- Powder
- Dose
- 23g protein per 30g serving
- Serving Size
- 1 scoop (30g)
- Protein Per Serving
- 23g
- Calories Per Serving
- 107 kcal
- Protein Source
- Micellar Casein
- Fillers Analysis
- Cleaner additive profile than ON Casein — uses only xanthan gum as a thickener versus four thickeners in the ON version. No carrageenan. A simpler, more straightforward formula which is a genuine advantage.
- Allergens
- Contains: milk, soy. May contain: gluten, egg, nuts
- Made In
- UK
How We Score Supplements
Our AI analyses reviews from Reddit, Amazon, YouTube, and specialist forums, then scores each product on a 1-10 scale across six evidence-based categories:
Effectiveness
How well the product delivers its claimed benefits, based on aggregated user experiences.
Ingredient Quality
Bioavailable forms, clean label, minimal fillers, no artificial junk. Higher = cleaner.
Value for Money
Price per serving relative to ingredient quality and effectiveness.
Side Effects Profile
Higher score = fewer side effects. 10 means virtually no adverse reactions reported.
Certifications & Testing
Third-party lab testing, GMP certification, and independent quality verification.
Overall Score
Weighted combination of all factors. Our bottom-line recommendation.
Disclaimer: AIScored provides AI-generated 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.