Best Casein Proteins Deals Online in the UK (25 Deals Found)

Last Updated - 14/12/2025 Sort By:

Best Choice
Optimum Nutrition

New
Optimum Nutrition Gold Standard 100% Casein Slow Digesting Protein Powder with Zinc, Magnesium and Amino Acids, Support
SLOW-DIGESTING PROTEIN powder FORTIFIED with zinc which contributes to a healthy immune system and magnesium to support

£67.95
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Premium Body Nutrition

New
PBN - Premium Body Nutrition Micellar Casein 2kg Vanilla
VANILLA - Micellar casein 2 kg. Jar with a delicious Vanilla flavour

£25.70
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New
Casein Protein Powder Slow Release Digestive Enzyme, Probiotic Blend 30 Servings
Five 5 hours after consuming 30 grams of casein protein, you will be back to base plasma-amino acid baseline. Built By J

£28.45 £29.95
Applied Nutrition

New
Applied Nutrition Casein Protein Powder - Micellar Casein Supplement, Slow Release Protein (900g - 30 Servings) (Chocola
IDEAL FOR PRE-BEDTIME: Casein protein powder is perfect to use just before you go to bed. It has time-release protein th

£25.94 £29.99
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New
Casein Protein Powder Slow Release Digestive Enzyme, Probiotic Blend 60 Servings
Five 5 hours after consuming 30 grams of casein protein, you will be back to base plasma-amino acid baseline. Built By J

£52.20 £54.95
Premium Body Nutrition

New
PBN - Premium Body Nutrition Micellar Casein. 2 kg — Chocolate
CHOCOLATE - Micellar casein 2 kg. Jar with a delicious Chocolate flavour

£25.70
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Best Value
Optimum Nutrition

New
Optimum Nutrition Gold Standard 100% Casein Slow Digesting Protein Powder with Zinc, Magnesium and Amino Acids, Support
SLOW-DIGESTING PROTEIN powder FORTIFIED with zinc which contributes to a healthy immune system and magnesium to support

£38.95 £45.00
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New
Applied Nutrition 100% Casein Protein 1.8kg - Slow release/night time protein
This could have a negative impact on both muscle recovery and performance.

£46.49
Applied Nutrition

New
Applied Nutrition Casein Protein Powder - Micellar Casein Supplement, Slow Release Protein (900g - 30 Servings) (Vanilla
IDEAL FOR PRE-BEDTIME: Casein protein powder is perfect to use just before you go to bed. It has time-release protein th

£25.94 £29.99
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New
6kg Chocolate Protein Whey Casein Creatine Crossfit Post Workout Recovery/Gainer
Preparation Factors (Creatine, L-Glutamine). 5g of Creatine. Cross training depletes the muscles of their energy source

£49.00
Applied Nutrition

New
Applied Nutrition Casein Protein Powder - Micellar Casein Supplement, Slow Release Protein (900g - 30 Servings) (Strawbe
IDEAL FOR PRE-BEDTIME: Casein protein powder is perfect to use just before you go to bed. It has time-release protein th

£25.94 £29.99
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Bulk

New
Bulk Micellar Casein Protein Powder, Protein Shake, Vanilla, 500 g
Packaging May Vary

£15.99
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New
Micellar Casein Concentrate Protein Powder - Bedtime Protein - All Flavours
Although they share similarities, the body processes and absorbs Casein protein significantly more slowly than Whey prot

£102.99
Ekopura

New
Ekopura Casein Protein Powder - 500g | 78% Protein | Hormone Free, GMO-Free, Soy-Free, Additive Free, Sugar-Free | Promo
✔ 100% ORGANIC: Enjoy our Organic Casein protein powder from grass-fed cows. Free from hormones, GMOs, and soy, it’s a p

£24.99
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New
Serious Whey Protein Powder & Casein Blend 4kg Lean Muscle Complex Amazing Value
A Premium Blend of Milk Protein (80% Casein and 20% Whey Naturally) and Soy Protein Isolate! Serious Protein - 4kg (133

£39.99
Premium Body Nutrition

PBN - Premium Body Nutrition Micellar Casein Strawberry 1kg Pouch
STRAWBERRY - Micellar casein 1 kg. Pouch with a delicious Strawberry flavour
New
Optimum Nutrition Gold 100% Casein Protein 924g Chocolate Supreme - BB 31/07/25
Optimum Nutrition Gold 100% Casein Protein 924g Chocolate Supreme - BB 31/07/25. This item is brand new and 100% genuine

£24.99
New
MICELLAR CASEIN PROTEIN POWDER - SLOW RELEASE - MATRIX NUTRITION
Ultra-Slow Digesting Protein: Matrix Micellar Casein contains premium grade micellar casein protein, this ensures amino

£56.99
New
Sports Fuel Premium Whey Protein Powder & Casein Blend 1kg - 5kg Shake Drink 80%
Sports Fuel Premium Whey Protein Powder & Casein Blend. You want a high quality, premium protein powder for a fair price

£11.99 £14.99
New
MyProtein - Micellar Casein Protein Powder
Each ~30 g serving provides ~23 g of protein, ~2.0 g carbohydrate, and ~0 g fat. Key notes: Suitable for vegetarians. Co

£27.79
New
Serious Protein Whey Powder & Casein Blend 4kg Tub Anabolic Matrix Shake - Straw
A Premium Blend of Milk Protein (80% Casein and 20% Whey Naturally) and Soy Protein Isolate! Serious Protein - 4kg (133

£39.99 £44.99
New
Serious Whey Protein Powder & Casein Blend 4kg Lean Muscle Complex Choco Peanut
A Premium Blend of Milk Protein (80% Casein and 20% Whey Naturally) and Soy Protein Isolate! Serious Protein - 4kg (133

£39.99 £44.99
New
Micellar Casein Protein Powder
Ultra-Slow Digesting Protein: Matrix Micellar Casein contains premium grade micellar casein protein, this ensures amino

£54.99
New
QRP Nutrition MICELLAR CASEIN PROTEIN 1800g (Salted Caramel)
QRP Nutrition MICELLAR CASEIN PROTEIN 1800g (Salted Caramel).

£40.00
New
QRP Nutrition Micellar Casein Protein 700g (Vanilla Flavour)
QRP Nutrition Micellar Casein Protein 700g (Vanilla Flavour).

£20.00

25 Casein Proteins deals are available from: Amazon, eBay stores, starting from £11.99.
The biggest discount we found is 10%% on Optimum Nutrition Gold Standard 100% Casein Slow Digesting Protein Powder with Zinc, Magnesium and Amino Acids, Support Muscle Growth & Repair Overnight, Strawberry Flavour, 55 Servings, 1.82 kg at Amazon.
The lowest price we found is £11.99 while the highest is £102.99.
Prices for the best Casein Proteins deals average at £38.04.
Last updated on December 14, 2025.
We scanned these quality online stores and more to deliver you with the best offers online available for Casein Proteins.