Casein Protein
Casein Protein
Casein Protein
1 3
500g bag
20 servings

Casein Protein

A slow-release, dairy-based protein. Our European calcium caseinate offers a steady release of essential amino acids to support muscle maintenance and overall health. It is heat stable so you can stir it into warm porridge, hot chocolate or a bedtime drink without compromising its benefits. Ideal for evening use or between meals when you need longer-lasting support.

23g protein per 25g serving and naturally low in lactose.

23g protein per 25g serving. Sourced from European milk and blended with sunflower lecithin. Slow-digesting for sustained nourishment. Low in lactose. 20 servings per bag.

MILK protein (Calcium Caseinate), Sunflower lecithin

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93% protein

With 23g of protein per 25g serving.

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Slow release

Slow digesting protein provides long lasting nourishment.

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Essential amino acids

Contains all 9 essential amino acids + BCAAs.

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No sweeteners

Completely free from any sweeteners or flavourings.

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It's the only protein I trust. It's unique in having no additives or sweeteners, just pure protein. Tastes great in milk.

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This is the quality protein I've ben looking for. I've tried many, always ending up with an upset gut. I can assure anyone if your looking for a clean protein, this is the one.

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The unflavoured and unsweetened protein is my go to daily protein intake , very versatile and clean tasting product

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Highly recommend. I use the unflavoured protein and it's great. Mixes well in overnight oats and not grainy at all.

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More to my taste than flavoured powders. I add it to my smoothie most mornings.

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I'm very fussy about my protein powder. I love this one.

Slow-release nourishment

Our casein protein offers a steady release of essential amino acids to support muscle maintenance and overall health. It's an ideal choice for those seeking prolonged protein delivery throughout the day, in between meals or at night.

A heat-stable protein

Calcium caseinate is heat-stable, so you can stir it into warm porridge, hot chocolate or a bedtime drink without compromising its benefits. Perfect for a slower-digesting, more comforting source of protein - especially in the evening.

TOP TIP to enjoy as a protein coffee or hot chocolate

Mix 2-3 tbsp of casein into a paste with some milk before adding the rest of your liquid. This guarantees a lovely, smooth drink.

European calcium caseinate

  • 93% Protein
  • 23g protein per 25g serving
  • Low in lactose
  • Rich in calcium
  • Slow-release
  • Heat stable
  • Versatile use

Quick Compare Our Proteins

Whey Protein Isolate Whey Protein Concentrate Golden Pea Protein Isolate Fava Bean Protein Isolate Casein Protein
Protein Per 25g serving 23g 21g 20g 20g 23g
% protein 93% 82% 80% 80% 93%
9 essential amino acids + BCAAs ✔ ✔ ✔ ✔ ✔
Vegan friendly ✔ ✔
Hypoallergenic ✔ ✔
View Whey Isolate View Whey Concentrate View Pea Protein View Fava Bean Protein You're viewing this product

Your Casein Protein Questions

What is the protein per serving? + -

This differs by protein type. For each 25g serving:

This protein: Whey Protein Isolate: 23g (93%)

Whey Protein Concentrate: 21g (82%)

Pea Protein: 20g (80%)

Fava Bean Protein: 20g (80%)

This protein: Casein Protein: 23g (93%)

How are they different to other protein powders? + -

Our plain proteins are unsweetened, unflavoured and completely free from artificial extras.

If you've tried other protein powders you know they often come with a sickly sweet taste or strange texture. Ours do not, thanks to being pure and all-natural.

How is casein protein different to whey isolate? + -

While both come from milk and are high in protein, the key difference is how your body digests them. Whey protein isolate is fast-digesting—ideal for after exercise when your body needs a quick protein boost. It’s filtered to remove nearly all fat and lactose, making it light and easy on the stomach.

Calcium caseinate, on the other hand, digests slowly. This means it releases amino acids steadily over several hours, making it perfect for between meals or before bed. It’s more filling and sustaining—ideal if you're looking to stay nourished for longer. Think of whey as your post-workout go-to, and casein as your all-day or overnight support.

Does it contain all 9 essential amino acids + BCAAs? + -

Yep! Every plain protein at Purition has all 9 essential amino acids + BCAAs

Is this product suitable for vegetarians? + -

Yes, our Calcium Caseinate is suitable for vegetarians.

When is the best time to consume Calcium Caseinate protein? + -

Due to its slow-digesting nature, it's ideal to consume before bedtime or between meals to support sustained amino acid delivery.

Casein Protein + -

Ingredients:

MILK protein (Calcium Caseinate), Sunflower lecithin

Nutrients Per 25g Serving % DV
Energy 387 KJ 5%
Calories 92 kcal 5%
Total Fat 0 g 0%
Saturated Fat 0 g 0%
Monounsaturated Fat 0 g ^^
Polyunsaturated Fat 0 g ^^
Total Carbohydrate 0 g 0%
Sugar 0 g ^^
Fibre 0 g 0%
Protein 22.8 g 46%
Salt 0 g 0%
Cholesterol 0 mg 0%
Vitamins & Minerals Per 100g % DV
Thiamin B1 0.0 mg 0%
Riboflavin B2 0.0 mg 0%
Niacin B3 0.0 mg 0%
Pantothenic Acid B5 0.0 mg 0%
Vitamin B6 0.0 mg 0%
Food Folate B9 0.0 µg 0%
Vitamin E 0.0 mg 0%
Vitamin D 0.0 µg 0%
Vitamin A 0.0 µg 0%
Vitamin C 0.0 mg 0%
Iodine 0.0 µg 0%
Chloride 25.0 mg 3%
Calcium 375.0 mg 47%
Copper 0.0 mg 0%
Iron 0.0 mg 0%
Magnesium 1.3 mg 0%
Manganese 0.0 mg 0%
Phosphorus 185.0 mg 26%
Potassium 3.1 mg 0%
Selenium 0.0 µg 0%
Zinc 0.0 mg 0%
Vitamin B12 0.0 µg 0%
Biotin 0.0 µg 0%
Vitamin K 0.0 µg 0%

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