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Serious Mass

Optimum Nutrition
  • 1250 kcal per shake

  • 53g of high quality protein per serving to help the growth of muscle
  • 250g of carbohydrate per serving to help the body recover

From £25.95
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Product Overview

High Protein
Low sugar
Low fat

Increase muscle size and weight with Serious Mass powder

If you’re looking to increase muscle size and weight then Serious Mass from the makers of Gold Standard 100% Whey is just what you need. One of the best-known weight gain powders available, each serving of Serious Mass is packed with 53g of protein to support the growth of muscle. Plus, 250g of carbohydrate, and 1250 kcal per serving boosts the number of calories in your diet, while Serious Mass is also packed with added vitamins and minerals, as well as creatine, glutamine, inositol and choline. Best of all, Serious Mass comes in six fantastic flavours and tastes great too!

Packed with high-quality ingredients to help build size

Serious Mass is packed with high-quality ingredients. Whey protein concentrate, calcium caseinate and egg albumin provide a high-quality protein blend that includes all amino acids. The source of carbohydrate is maltodextrin, which helps to aid recovery after intense exercise – so long you as you take on board 4g/kg body mass within 4-6 hours of your exercise. With an added vitamin and mineral blend to support your daily nutrient intake plus a delicious creamy taste, Serious Mass is a must for anybody serious about getting bigger!


  • 1250 kcal per shake
  • 53g of high quality protein per serving to help the growth of muscle
  • 250g of carbohydrate per serving to help the body recover
  • A blend of vitamins and minerals
  • Added glutamine and choline
  • Available in a range of pack sizes and fantastic flavours
  • Nutritional information may vary depending on flavour.

Suggested Use

Just mix two scoops of Serious Mass (334g) with 710ml of water to create a tasty, calorie-packed shake. 

Nutritional Information


Serious Mass Nutritional Information 1

Customer Reviews

Overall Rating (4.6)
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Review by Angele on Jan 1, 2021
Excellent site! Envoie très rapide et super soigné, ravie de mes achats à chaque commande
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Review by Laurent on Dec 25, 2020
Stop essayer 50 gainers différents sans jamais être satisfait, ici : Dilution parfaite dans un shaker pour 200g de Serious Mass chocolat / 400ml d'eau. Gout correct, se boit tout seul, jamais écoeurant, très peu sucré. Digestion parfaite, pas de crampe d'estomac, pas de ballonnements. Niveau perf, c'est ce qu'on attend d'un gainer : des calories + vitamines / minéraux en bonus, réel gain d'énergie et de motivation, aussi bien pendant les séances que pour le reste. Pour 200g de produit ça me fait 30g de protéines en 1 prise, parfait. 2 à 3 prises par jour. Légère prise de graisse, suffit de faire attention. Au top !
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Review by Estella on Dec 20, 2020
Ein super Preis und ein sehr leckerer Geschmack.
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Très bien.

Review by David on Dec 7, 2020
Très bon produit et livraison rapide.
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Good product

Review by Anonymous on Dec 4, 2020
Produits de qualité! et fast deliver
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Review by Anonymous on Nov 27, 2020
Tot nu altijd gewerkt en drinkt ook makkelijk
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Review by Jorge on Nov 26, 2020
Excelente sabor e ótimo produto... Apenas a quantidade do pó e muito elevada... A concentração devia ser mais elevada para deduzir o volume...
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Erg tevreden

Review by Maan on Nov 25, 2020
Een goed product wat ik standaard koop! Zeer tevreden! De smaak banaan; aanrader!
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Review by Younes on Nov 15, 2020
Very good product tasting delicious banana
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Review by Bahaa on Nov 13, 2020
Het werkt prima. Chocolate is de lekkerste smaak
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Combi Deals
Buy together and save up to 14%

Serious Mass Duo Pack (1+1)

14% OFF
Serious Mass
Serious Mass
Serious Mass 1
7 flavours available
5455 grams (16 Shakes)
Serious Mass 2
7 flavours available
5455 grams (16 Shakes)
£85.90 £73.50