Myprotein Slow-Release Casein 2.5kg vs Skyr Protein Shake Vanilla Honey 300g

Q: Which is better, Myprotein Slow-Release Casein 2.5kg or Skyr Protein Shake Vanilla Honey 300g?

Myprotein Slow-Release Casein 2.5kg scores 70.0/100 while Skyr Protein Shake Vanilla Honey 300g scores 70.0/100 in our analysis. Both products are equally rated.

Q: Is Myprotein Slow-Release Casein 2.5kg worth the price compared to Skyr Protein Shake Vanilla Honey 300g?

Myprotein Slow-Release Casein 2.5kg scores 82.0/100 for value, while Skyr Protein Shake Vanilla Honey 300g scores 60.0/100. Check our price comparison above for the latest UK prices.

Side-by-side comparison of scores, ingredients, prices and real customer feedback for Myprotein Slow-Release Casein 2.5kg and Skyr Protein Shake Vanilla Honey 300g.

Last verified: 07 Apr 2026 · Based on 14 reviews

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70.0

Quick Answer

Myprotein Slow-Release Casein 2.5kg scores 70.0/100 vs Skyr Protein Shake Vanilla Honey 300g at 70.0/100. Myprotein Slow-Release Casein 2.5kg wins on value for money, side effects, certifications. Skyr Protein Shake Vanilla Honey 300g is stronger on effectiveness and ingredient quality.

Which is better: Myprotein Slow-Release Casein 2.5kg or Skyr Protein Shake Vanilla ...?

Both score 70/100, but Myprotein Casein edges ahead on value (82 vs 60) and offers 83 servings for £67.64 — far better cost-per-serving than All Stars at £20 for 300g. Choose Myprotein if overnight recovery protein at low cost is the priority. All Stars Skyr suits those who want the taste and micronutrient richness of whole-food dairy protein and don't mind paying a premium per gram.

— AIScored Editorial Team

How Do the Scores Compare?

Myprotein Slow-Release Casein 2.5kg

Skyr Protein Shake Vanilla ...

	Myprotein Slow-Release Casein 2.5kg Myprotein	Skyr Protein Shake Vanilla ... All Stars
Overall Score	70.0	70.0
Effectiveness	74.0/100	80.0/100 Best
Ingredient Quality	68.0/100	70.0/100 Best
Value for Money	82.0/100 Best	60.0/100
Side Effects	76.0/100 Best	70.0/100
Certifications	32.0/100 Best	30.0/100
Best Price	£67.64 Amazon UK →	£20.00 Holland & Barrett → Cheapest
Price per Serving	£0.81 83 servings	N/A
Form	Powder	None
Dose	23g protein per 30g serving	None
Third-Party Tested	✗ No	✗ No
Reviews Analysed	13	1

Myprotein Slow-Release Casein 2.5kg

Pros

✓Micellar casein — the most bioavailable, slowest-digesting form ideal for overnight recovery
✓Cleaner additive profile than ON Gold Standard Casein — single thickener (xanthan gum), no carrageenan
✓Strong value for money — casein at Myprotein pricing with 83 servings per 2.5kg tub
✓Good mixability reported — dissolves quickly in liquid, uncommon for casein

Cons

✗Not third-party tested (Informed Sport, NSF) — relevant for athletes subject to testing
✗Contains soy lecithin — unsuitable for soy-allergic users; may contain gluten, egg, nuts
✗Casein taste can be chalky or overly sweet — one reviewer noted sweetness as a concern
✗Myprotein customer service has recurring complaints; discount codes not auto-applied at checkout

Best For

Bodybuilders and strength athletes using casein before bed for overnight muscle protein synthesis Budget-conscious gym-goers wanting slow-release protein at a lower price point than whey isolate People blending casein with whey concentrate for improved texture in shakes or high-protein desserts Anyone wanting a UK-made casein with a cleaner ingredient list than American alternatives

Amazon UK £67.64

View full review →

Skyr Protein Shake Vanilla Honey 300g

Pros

✓Excellent taste and mixability with no artificial protein aftertaste (reviewer-confirmed)
✓High protein density from traditional skyr production (requires 3-4x milk vs yogurt)
✓Rich micronutrient profile including vitamins and minerals from whole milk base
✓Versatile – blends well into oats, yogurt, and other foods

Cons

✗Not vegan – dairy-based product unsuitable for plant-based diets
✗No third-party testing or quality certifications listed
✗Limited review data (only 1 review) – insufficient for robust assessment
✗Potential lactose content concern for lactose-sensitive individuals (not specified in product info)

Best For

Lactose-tolerant protein seekers Those preferring whole-food dairy protein over isolates Athletes and active individuals seeking high-protein snacks People wanting to mix protein into oats and yogurt bowls Consumers prioritizing taste over maximum protein-per-serving

Holland & Barrett £20.00

View full review →

What does the data say about Myprotein Slow-Release... vs Skyr Protein Shake Van...?

Myprotein Slow-Release Casein provides 23g of protein per 30g serving using micellar casein, a highly bioavailable powder. It costs £67.64 for a large 2.5kg tub containing 83 servings. Skyr Protein Shake Vanilla Honey costs £20.00 for 300g and uses traditional dairy production requiring four times more milk than yogurt. While both products score 70.0/100 overall, they work differently. The Myprotein powder uses xanthan gum as a thickener and contains no carrageenan. Skyr Protein Shake Vanilla Honey relies on a whole milk base to provide vitamins and minerals.

Bodybuilders and strength athletes should choose Myprotein Slow-Release Casein for overnight recovery. It is the better option for budget-conscious gym-goers because it scores 82.0/100 for value. If you prefer whole-food dairy over isolates, Skyr Protein Shake Vanilla Honey is the right pick. It scores 80.0/100 for effectiveness, beating the 74.0/100 earned by the powder. Athletes and active individuals wanting a high-protein snack will find the skyr shake more convenient.

Taste is a major factor here. Skyr Protein Shake Vanilla Honey has no artificial protein aftertaste. Myprotein Slow-Release Casein contains soy lecithin, so avoid it if you have a soy allergy. It might also contain traces of gluten and nuts. The powder works well for making high-protein desserts or mixing with whey. Skyr Protein Shake Vanilla Honey is only for those who can tolerate lactose and is not vegan.

Myprotein Slow-Release Casein 2.5kg Winner 70.0/100

Myprotein Slow-Release Casein 2.5kg uses micellar casein — the gold standard slow-digesting protein form — delivering 23g protein per 30g serving across a generous 83-serving tub.

Effectiveness

Myprotein Slow-R..

74.0/100

Skyr Protein Sha..

80.0/100

Ingredient Quality

Myprotein Slow-R..

68.0/100

Skyr Protein Sha..

70.0/100

Value for Money

Myprotein Slow-R..

82.0/100

Skyr Protein Sha..

60.0/100

Side Effects

Myprotein Slow-R..

76.0/100

Skyr Protein Sha..

70.0/100

Certifications

Myprotein Slow-R..

32.0/100

Skyr Protein Sha..

30.0/100

What are the key differences?

Myprotein Slow-Release .. is best for: Bodybuilders and strength athletes using casein before bed for overnight muscle protein synthesis, Budget-conscious gym-goers wanting slow-release protein at a lower price point than whey isolate

Skyr Protein Shake Vani.. is best for: Lactose-tolerant protein seekers, Those preferring whole-food dairy protein over isolates

Frequently Asked Questions

Which is better, Myprotein Slow-Release Casein 2.5kg or Skyr Protein Shake Vanilla Honey 300g? ▼

Myprotein Slow-Release Casein 2.5kg scores 70.0/100 overall while Skyr Protein Shake Vanilla Honey 300g scores 70.0/100. Both score equally overall — the difference comes down to individual dimensions. Myprotein Slow-Release Casein 2.5kg is best suited for Bodybuilders and strength athletes using casein before bed for overnight muscle protein synthesis and Budget-conscious gym-goers wanting slow-release protein at a lower price point than whey isolate. Skyr Protein Shake Vanilla Hon is better for Lactose-tolerant protein seekers and Those preferring whole-food dairy protein over isolates.

Is Myprotein Slow-Release Casein 2.5kg worth the price compared to Skyr Protein Shake Vanilla Honey 300g? ▼

Myprotein Slow-Release Casein 2.5kg costs £67.64 while Skyr Protein Shake Vanilla Honey 300g is £20.00. For value, Myprotein Slow-Release Casein 2.5kg scores 82.0/100 vs Skyr Protein Shake Vanilla Honey 300g's 60.0/100. Myprotein Slow-Release Casein 2.5kg delivers better value relative to its quality.

Which has fewer side effects? ▼

Myprotein Slow-Release Casein 2.5kg scores 76.0/100 for side effects (higher means fewer reported issues) while Skyr Protein Shake Vanilla Honey 300g scores 70.0/100. Reviewers report fewer side effects with Myprotein Slow-Release Casein 2.5kg. For certification and testing, Myprotein Slow-Relea scores 32.0/100 vs Skyr Protein Shake V's 30.0/100. Always consult a healthcare professional before starting any supplement.

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

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