Serious protein
Serious protein for sale on Ireland's largest auction and classifieds sites
Serious whey protein powder - whey, & - £39.99
Premium blend milk • Protein casein whey • 4kg 133 servings - Free postage - New and Used
Premium blend milk • Protein casein whey • 4kg 133 servings - Free postage - New and Used
Serious 4kg lean - go, diet - £31.99
Plus high protein • Make sure you • Hitting your daily - Free postage - New and Used
Plus high protein • Make sure you • Hitting your daily - Free postage - New and Used
Anabolic serious gains 4kg - anabolic, - £30.99
Its energy dense • Formula ensures you • Get fuel necessary - Free postage - New and Used
Its energy dense • Formula ensures you • Get fuel necessary - Free postage - New and Used
Mass gainer 4kg protein shake - mass, - £30.99
Its energy dense • Formula ensures you • Get fuel necessary - Free postage - New and Used
Its energy dense • Formula ensures you • Get fuel necessary - Free postage - New and Used
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Serious whey protein - protein, & - £35.00
- Free postage - New and Used
- Free postage - New and Used
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48 listings · from £21.99 · avg £37.4
⚠️ These listings were last updated more than 105 days ago.
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Browse 48 serious protein listings currently in our index. Prices range from £21.99 to £60.99, with an average of £37.4. Whether you are hunting for a bargain or looking for a top-spec model, the selection below covers all price points — new, used and refurbished. More about serious protein →
Diet whey protein powder - whey, - £39.99
Serious shredz • 4kg 133 servings • About training leaning - Free postage - New and Used
Serious shredz • 4kg 133 servings • About training leaning - Free postage - New and Used
Serious protein whey powder - whey, - £39.99
Soy protein isolate • Premium blend milk • 4kg 133 servings - Free postage - New and Used
Soy protein isolate • Premium blend milk • 4kg 133 servings - Free postage - New and Used
Serious whey protein powder - serious, - £39.99
Premium blend milk • Protein casein whey • 4kg 133 servings - Free postage - New and Used
Premium blend milk • Protein casein whey • 4kg 133 servings - Free postage - New and Used
Serious protein 4kg - serious, – - £39.99
Serious protein 4kg • Powder muscle growth • Lean gains bulk - Free postage - New and Used
Serious protein 4kg • Powder muscle growth • Lean gains bulk - Free postage - New and Used
Serious protein whey - protein, powder - £39.99
Premium blend milk • Protein casein whey • 4kg 133 servings - Free postage - New and Used
Premium blend milk • Protein casein whey • 4kg 133 servings - Free postage - New and Used
Serious gainz weight - weight, gain - £29.99
Whey milk protein • Maltodextrin oat flour • Concentrate cocoa powder - Free postage - New and Used
Whey milk protein • Maltodextrin oat flour • Concentrate cocoa powder - Free postage - New and Used
Serious protein whey - protein, & - £39.99
Premium blend milk • Protein casein whey • 4kg 133 servings - Free postage - New and Used
Premium blend milk • Protein casein whey • 4kg 133 servings - Free postage - New and Used
Serious supplements deals - supplements, - £39.99
Serious protein 4kg • 133 servings huge • Tub premium blend - Free postage - New and Used
Serious protein 4kg • 133 servings huge • Tub premium blend - Free postage - New and Used
Matrix nutrition 4kg monster - matrix, - £37.49
Matrix monster calories • Weight gainer that • Incorporates important muscle - Free postage - New and Used
Matrix monster calories • Weight gainer that • Incorporates important muscle - Free postage - New and Used
Whey protein serious perform - protein, - £35.99
Perform lean mass • Gainer ideal choice • Anyone that trying - Free postage - New and Used
Perform lean mass • Gainer ideal choice • Anyone that trying - Free postage - New and Used
1ne nutrition bulk - nutrition, - £30.99
Directions optimum results • Use servings 1ne • Nutrition bulk daily - Free postage - New and Used
Directions optimum results • Use servings 1ne • Nutrition bulk daily - Free postage - New and Used
Serious whey protein - whey, powder - £39.99
Serious protein 4kg • 133 servings huge • Tub premium blend - Free postage - New and Used
Serious protein 4kg • 133 servings huge • Tub premium blend - Free postage - New and Used
Serious protein whey casein - serious, - £39.99
Serious protein facts • 24g high quality • Scoop huge 133 - Free postage - New and Used
Serious protein facts • 24g high quality • Scoop huge 133 - Free postage - New and Used
Serious protein powder - powder, milk - £39.99
Serious protein 4kg • 133 servings huge • Tub premium blend - Free postage - New and Used
Serious protein 4kg • 133 servings huge • Tub premium blend - Free postage - New and Used
Serious gainz weight gainer - serious, - £34.99
Put gain mass • 400 lean calories • Per serving serious - Free postage - New and Used
Put gain mass • 400 lean calories • Per serving serious - Free postage - New and Used
Optimum nutrition serious - nutrition, - £46.19
Servings per container • 16.0 added sugar • Protein powder formula - Free postage - New and Used
Servings per container • 16.0 added sugar • Protein powder formula - Free postage - New and Used
Serious gainz weight - gainz, gainer - £34.99
Put gain mass • 400 lean calories • Per serving serious - Free postage - New and Used
Put gain mass • 400 lean calories • Per serving serious - Free postage - New and Used
Serious gainz weight gain - serious, - £34.99
Put gain mass • 400 lean calories • Per serving serious - Free postage - New and Used
Put gain mass • 400 lean calories • Per serving serious - Free postage - New and Used
Optimum nutrition serious - optimum, - £46.50
Servings per container • 16.0 added sugar • Protein powder formula - Free postage - New and Used
Servings per container • 16.0 added sugar • Protein powder formula - Free postage - New and Used
Optimum nutrition serious mass - nutrition, - £32.99
Optimum nutrition serious • Mass high calorie • Gainer protein powder - Free postage - New and Used
Optimum nutrition serious • Mass high calorie • Gainer protein powder - Free postage - New and Used
Serious shredz ultralean - serious, - £44.99
Serious shredz • 4kg 133 servings • About training leaning - Free postage - New and Used
Serious shredz • 4kg 133 servings • About training leaning - Free postage - New and Used
Serious protein whey - protein, powder - £30.86
- Free postage - New and Used
- Free postage - New and Used
Serious protein powder milk - powder, & - £32.99
- Free postage - New and Used
- Free postage - New and Used
Weight gainer 4kg - whey, protein - £25.99
Pro elite force • Mass gainer help • Build good quality - Free postage - New and Used
Pro elite force • Mass gainer help • Build good quality - Free postage - New and Used
5kg perform serious mass - perform, - £35.99
Perform lean mass • Gainer ideal choice • Anyone that trying - Free postage - New and Used
Perform lean mass • Gainer ideal choice • Anyone that trying - Free postage - New and Used
Pro elite mass gainer 4kg - mass, - £25.99
Anabolic designs pro • Elite force mass • Gainer help build - Free postage - New and Used
Anabolic designs pro • Elite force mass • Gainer help build - Free postage - New and Used
Proelite lean mass gainer - proelite, 4kg - £25.99
Optimum results use • Servings proelite xforce • Daily pro elite - Free postage - New and Used
Optimum results use • Servings proelite xforce • Daily pro elite - Free postage - New and Used
Serious whey protein - whey, & - £37.95
- Free postage - New and Used
- Free postage - New and Used
Bulk 4kg serious mass - bulk, - £30.99
Anabolic designs ingredients • Hydrolysed whey protein • Casein whole milk - Free postage - New and Used
Anabolic designs ingredients • Hydrolysed whey protein • Casein whole milk - Free postage - New and Used
Serious protein - serious, – - £37.19
- Free postage - New and Used
- Free postage - New and Used
Optimum nutrition serious - optimum, mass - £28.99
Optimum nutrition serious • Mass 2.73kg strawberry • Powder gain shake - Free postage - New and Used
Optimum nutrition serious • Mass 2.73kg strawberry • Powder gain shake - Free postage - New and Used
Optimum nutrition serious mass - optimum, - £45.45
Servings per container • 16.0 added sugar • Protein powder formula - Free postage - New and Used
Servings per container • 16.0 added sugar • Protein powder formula - Free postage - New and Used
Optimum nutrition serious mass - serious, - £40.99
Nutrition rich piana • Serious mass ultimate • Weight gain formulas - Free postage - New and Used
Nutrition rich piana • Serious mass ultimate • Weight gain formulas - Free postage - New and Used
Optimum nutrition serious mass - nutrition, - £36.95
Serving this mass • Gainer contains essential • Vitamins minerals including - Free postage - New and Used
Serving this mass • Gainer contains essential • Vitamins minerals including - Free postage - New and Used
Pro elite lean mass - elite, - £21.99
Pro elite lean • Mass gainer specially • Aid muscle support - Free postage - New and Used
Pro elite lean • Mass gainer specially • Aid muscle support - Free postage - New and Used
Optimum nutrition serious mass - serious, - £60.99
Also ideal anyone • Who finds hard • Gain weight vitamin - Free postage - New and Used
Also ideal anyone • Who finds hard • Gain weight vitamin - Free postage - New and Used
4kg vegan protein - vegan, - £29.97
Suitable all vegan • Gainz give you • World class mass - Free postage - New and Used
Suitable all vegan • Gainz give you • World class mass - Free postage - New and Used
The bulk protein company - bulk, - £34.99
Serious gainz • Weight gainer 5kg • Fact sheet are - Free postage - New and Used
Serious gainz • Weight gainer 5kg • Fact sheet are - Free postage - New and Used
Serious gainz 5kg - 5kg, strong - £39.99
Put gain mass • 400 lean calories • Per serving serious - Free postage - New and Used
Put gain mass • 400 lean calories • Per serving serious - Free postage - New and Used
Serious whey protein - powder, & - £40.00
Serious protein facts • 24g high quality • Scoop huge 133 - Free postage - New and Used
Serious protein facts • 24g high quality • Scoop huge 133 - Free postage - New and Used
Serious gainz mass - serious, 5kg - £34.99
Put gain mass • 400 lean calories • Per serving serious - Free postage - New and Used
Put gain mass • 400 lean calories • Per serving serious - Free postage - New and Used
Optimum nutrition serious mass - nutrition, - £57.77
Because large carbohydrate • Load you have • Conditions like insulin - Free postage - New and Used
Because large carbohydrate • Load you have • Conditions like insulin - Free postage - New and Used
Optimum nutrition serious mass - optimum, - £58.99
Serious mass gainer • Formula supports muscle • Growth repair utilising - Free postage - New and Used
Serious mass gainer • Formula supports muscle • Growth repair utilising - Free postage - New and Used
Try this: healthlabs | dynamo pre workout | hey nutrition probiotic | alphaform labs epi | dark energy pre workout | gorilla mode pre workout | bettervits | colebil | ferrous sulphate 200mg asda | boots cranberry tablets
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Everything you need to know about serious protein
Whether you are looking for a brand-new or second-hand serious protein, eBay offers one of the largest selections available online. With 48 active listings at the time of this page's last update, you have plenty of choice across different conditions, sellers and price points. The cheapest option currently starts at £21.99, while premium listings can reach £60.99 — giving you a wide budget spread to work with. The average price of £37.4 can serve as a useful benchmark: listings below this tend to be used or auction-style, while those above often include extra accessories, warranties, or are sold by professional sellers with high feedback scores. Always check the seller's feedback rating and return policy before committing to a purchase. If you need the item quickly, filter by "Buy It Now" to avoid the uncertainty of auctions. For used items, look closely at the condition description and photos — terms like "good", "very good" and "like new" can mean very different things depending on the seller.