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Protein Supplements

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An essential element in muscle building and repair, protein is a staple no matter your sport - so why not ensure you're investing in the best, courtesy of OnBuy's edit? Ticking off all the popular formats (in the most mouthwatering flavours!) from top sports nutrition brands, our collection has it all - trainers at the ready! Read More >
NuZest's CLEAN LEAN PROTEIN Smooth Vanilla 1KG approx. 40 servings - each with 21.1g protein and 0.0g sugar. NuZest's Clean Lean Protein (CLP) comes from premium quality European Golden Peas (Pisum sativum), grown in France under conditions protecting them from environmental toxins. The protein is...
£48.06
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CocoPro is the world's first high protein pure coconut water. The combination of pure coconut water and premium protein provides the ultimate fuel for your body when it needs it most. Providing 20 grams of the highest quality protein, whey isolate with the naturally rich in electrolytes, coconut wat...
£6.60
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CocoPro is the world's first high protein pure coconut water. The combination of pure coconut water and premium protein provides the ultimate fuel for your body when it needs it most. Providing 20 grams of the highest quality protein, whey isolate with the naturally rich in electrolytes, coconut wat...
£6.60
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Biona Creations - Organic Raisin Peanut Gourmet Nut Spread
£5.55
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Comvita Children's Lemon & Honey Lollipops 10 units
£10.13
Free Delivery
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Good Hemp Raw Protein, one of the most balanced sources of protein from nature. 50% Protein, with Omega 3 and Good Fibre. Easy to digest. Suitable for Vegans and with no known allergens.
£33.78
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Derived from top quality herbs that are cultivated without the use of chemicals, preservatives, herbicides, pesticides, fumicides or irradiation to maintain purity and high potency.
£9.92
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Grenade:Defend®, an advanced, full spectrum amino acid supplement primarily designed for use during or immediately post workout.
£35.56
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Greens Org Pumpkin Prot Powder
£11.14
Free Delivery
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Kinetica Whey Protein is an advanced whey protein supplement using the most natural and highest quality whey proteins. Whey protein is essential for anyone looking to build lean muscle and recover from intense training.
£52.43
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Kinetica Whey Protein is an advanced whey protein supplement using the most natural and highest quality whey proteins. Whey protein is essential for anyone looking to build lean muscle and recover from intense training.
£52.43
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Kinetica Whey Protein is an advanced whey protein supplement using the most natural and highest quality whey proteins. Whey protein is essential for anyone looking to build lean muscle and recover from intense training.
£52.43
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Combining high-quality Whey Protein, essential peptides and amino acids, and the digestive enzyme Aminogen, our whey protein supplements have been precisely developed to replenish your body's amino acid levels and support lean muscle growth and recovery. And because it's absorbed quickly by the bo...
£52.43
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Lestrin is a dietary supplement containing two important, naturally occurring plant substances, Beta-sitosterol (25mg) and Beta-sitostanol (79mg). These plant sterols/stanols are present in Lestrin in the same ratios as are found in nature. They may help maintain normal cholesterol levels as part of...
£14.35
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Soy Protein Isolate boasts the highest protein content of any soy protein powder. Our Soy Protein Isolate is made from 100% NON-GMO defatted soy beans suing a stringent process which removes a vast majority of the fat and carbohydrate content. The resulting product yields over 90% protein content wi...
£16.37
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The best value whey protein anywhere in Europe!* Impact Whey Protein® is produced using only premium grade whey protein concentrate, delivering a high 82% protein content. This product has broken all sales records due to its exceptional value for money and great taste. We guarantee* you won...
£16.09
+£4.75 Delivery
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Our Impact Whey Isolate® is an extremely rich source of whey protein derived from vegetarian sweet cheese, sourced directly from the world's leading whey protein manufacturers. Whey Protein Isolate (WPI) is the ultimate form of whey protein, containing over 90% protein with very little fat...
£27.35
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Our Impact Whey Isolate® is an extremely rich source of whey protein derived from vegetarian sweet cheese, sourced directly from the world's leading whey protein manufacturers. Whey Protein Isolate (WPI) is the ultimate form of whey protein, containing over 90% protein with very little fat...
£27.30
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Myprotein Figure 8 Straps are a fantastic training accessory to help enhance lifting technique and reduce premature grip fatigue. These heavy duty cotton straps are the ideal replacement for the traditional lifting straps which are known for their impractical and uncomfortable design. The Myprote...
£10.40
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It is made-up of 100% premium grade whey protein concentrate and has 20g of protein per serving (80%). This has a comprehensive amino acid profile providing all the essential amino acids (EAA's) and contains over 2g of Leucine per serving. If you're looking for a premium quality whey protein powder ...
£20.45
+£4.75 Delivery
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Citrulline Malate is a unique combination of the amino acid citrulline and the organic salt malate that offers athletes a potential method of improving performance, delaying fatigue and accelerating recovery. It is particularly useful for people involved in high intensity exercise such as weight lif...
£18.75
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WHEY PROTEIN Advanced high protein formula designed to support growth and maintain muscle - High Protein - Derived from grass fed, hormone free cow's milk - 5.7g of BCAAs per 30g serving - Low in sugar - Added digestive enzyme Aminogen® - Gluten free - suitable for coel...
£15.62
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We are proud to present the strongest Tribulus Terrestris extract currently available with a massive 95% Saponin (active ingredient of Tribulus) content. We have also increased the amount of Tribulus per capsule to a mighty 300 mg! Tribulus terrestris has been used for centuries in ancient Greece,...
£11.08
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Brewers Yeast are the dried cells of Sacharomyces cerevisiae, a type of fungus, which contain several micronutrients. This product is commonly taken by vegetarians and vegans.
£9.17
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The best value whey protein anywhere in Europe!* Impact Whey Protein® is produced using only premium grade whey protein concentrate, delivering a high 82% protein content. This product has broken all sales records due to its exceptional value for money and great taste. We guarantee* you won...
£21.68
Free Delivery
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It is made-up of 100% premium grade whey protein concentrate and has 20g of protein per serving (80%). This has a comprehensive amino acid profile providing all the essential amino acids (EAA's) and contains over 2g of Leucine per serving. If you're looking for a premium quality whey protein powder ...
£21.92
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Reishi Mushroom 480mg 60 capsules
£9.98
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It is made-up of 100% premium grade whey protein concentrate and has 20g of protein per serving (80%). This has a comprehensive amino acid profile providing all the essential amino acids (EAA's) and contains over 2g of Leucine per serving. If you're looking for a premium quality whey protein powder ...
£38.35
Free Delivery
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It is made-up of 100% premium grade whey protein concentrate and has 20g of protein per serving (80%). This has a comprehensive amino acid profile providing all the essential amino acids (EAA's) and contains over 2g of Leucine per serving. If you're looking for a premium quality whey protein powder ...
£21.92
Free Delivery
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Containing over 90% of protein with very little fat and lactose, Myprotein's bestselling Impact Whey Isolate is a much-loved choice for good reason. Aimed at male or female athletes, bodybuilders or sports enthusiasts whose main training focus is to build lean muscle, Impact Whey Isolate contains h...
£27.30
Free Delivery
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The best value whey protein anywhere in Europe!* Impact Whey Protein® is produced using only premium grade whey protein concentrate, delivering a high 82% protein content. This product has broken all sales records due to its exceptional value for money and great taste. We guarantee* you won...
£21.73
Free Delivery
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Protein + Complex Carbohydrates: Fuel muscle growth and accelerate fat loss with the ideal blended ratio of complex carbohydrates and whey protein. An ideal, dynamic, supplement that can be adapted for muscle growth and fat burning whatever your sport.
£16.76
Free Delivery
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About Protein Supplements

The building block of muscles, protein supplements are a key part of reaching (and smashing!) your goals - made trickier by the fact our bodies don't store it easily! Luckily for you, OnBuy's edit is packed with protein for workouts of all types to see you at peak performance. Phew!

From protein capsules to protein drinks, our collection ticks off the top protein supplements (not forgetting the vegan protein supplements, of course!) - and with targeted protein for weight gain and protein for weight loss alike, you're bound to find what you need to succeed here. 

Hunting for protein powder? Discover powdered protein here to slot into all diets and regimes seamlessly: with everything from whey protein to soy protein powder and casein protein powder, finding the best protein powder for you has never been so simple - thank us later!

Browse All Popular Protein Supplements >

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