Promo !


Le prix initial était : د.م. 1.000.Le prix actuel est : د.م. 849.


  •  Powerful Formula to Accelerate Mass Gain
  • 1st Gainer in the United States!
  •  Complete protein matrix
  •  Contributes to increasing muscle mass
  •  Enriched with creatine and L-Glutamine
  •  Contains 25 vitamins and minerals
  •  Hyper rapid weight gain
  •  Economical Format 5.4kg


A  large pouch format weighing more than 5kg  for amateurs in an intensive phase of mass gain addicted to  Serious Mass  from Optimum Nutrition!


SKU GP_4H5DQ8GB1B6S Categories , ,

Livraison gratuite à partir de 700dh !

Serious Mass Gainer has been a reference in hard gainers for almost 20 years. It is manufactured by the Optimum Nutrition brand.

This formula is specially developed for people who have difficulty gaining muscle mass despite a diet already high in calories.

SERIOUS MASS from Optimum Nutrition is a powerful mass accelerator that allows beginners and experienced athletes to quickly increase their body weight and muscle mass.
If you’re struggling to gain weight or build muscle despite your best efforts and a high-carb, high-protein diet, here’s the ultimate formula for building muscle!.
serious mass

Why take Serious Mass?

Each serving of Serious Mass 5kg  contains 1263 calories, 50g of protein to help increase muscle mass, and 251g of natural sugars.
The gain in SERIOUS MASS is due to the fact that it is very high in Maltodextrins, complex sugars which are slowly assimilated in the body, allowing a powerful caloric intake and a responsible increase in volume without gaining grassy mass.
The SERIOUS MASS protein gainer is also based on a tri-source protein matrix (Whey Protein, Oat Protein, Casein).
Whey is quickly absorbed by the body, but Casein and Uf are absorbed slowly, which helps nourish the body and muscles for prolonged periods and prevents muscle breakdown (catabolism).
The combination of these three protein sources allows for a constant supply of amino acids, which significantly stimulates muscle growth.
SERIOUS MASS contains 3g of creatine monohydrate, Choline, which contributes to normal lipid metabolism and the maintenance of normal liver function, Inositol for lipid metabolism, MCT oil, which is easy to digest and used as fuel by the body, as well as 8 vitamins (A, D, E, C, B) and 10 essential minerals.
SERIOUS-MASS is ideal for athletes who need to gain weight quickly and efficiently, as well as those who have difficulty gaining ectomorph type weight.

Features of Serious Mass

  • Contains a complete protein matrix

serious mass

  • Contributes to increasing muscle mass
  • Enriched with creatine monohydrate and L-Glutamine
  • Contains 25 vitamins and minerals
  • 1250 calories including 16% protein
  • No added sugar

Thanks to its complete high-calorie composition, Serious Mass allows you to increase your macronutrient intake throughout the day and contribute to the increase and maintenance of muscle mass thanks to proteins.

To gain weight and mass, it is essential to have a calorie surplus, which means that you must take in more calories than you expend.

Serious Mass is enriched with 25 vitamins and minerals as well as antioxidants. It is also a multi-phase protein, a carbohydrate matrix also multi-phase, for sustainable assimilation over time while offering better nitrogen retention.

Each 334g serving provides 1250 calories divided into 250g of carbohydrates and 50g of protein. With such a composition, it becomes easier to increase daily calorie intake.

Seven flavors are available: chocolate, vanilla, fresh fruit, banana, cookie & cream (with chocolate crumbs), chocolate – peanut butter and chocolate – mint.

How to use Serious Mass?

Take 2 scoops (i.e. 334g) in approximately 400ml of cool water or skimmed milk and consume for breakfast, as a snack, and/or after training.

The composition of serious mass

Maltodextrin, Protein Blend (Whey Protein Concentrate, Calcium Caseinate, Egg Albumin, Sweet Dairy Whey), Natural and Artificial Flavors, Vitamin and Mineral Blend (DiPotassium Phosphate, Magnesium Aspartate, DiCalcium Phosphate, Calcium Citrate, Ascorbic Acid, Niacinamide, Zinc Citrate, Beta Carotene, D-Calcium Pantothenate,

D-Alpha Tocopheryl Succinate, Selenomethionine, Copper Gluconate, Ferrous Fumarate, Manganese Amino Acid Chelate, Thiamin Mononitrate, Pyridoxine Hydrochloride, Riboflavin, Chromium Polynicotinate, Folic Acid, Biotin, Molybdenum Amino Acid Chelate, Cholecalciferol, Potassium Iodide, Cyanocobalamin), Medium Chain Triglycerides, Lecithin, Malic Acid, Acesulfame Potassium, Sucralose, FD&C Yellow #5.

Allergen Warning

Allergen Information: Contains Milk, Egg, Wheat (Glutamine Peptides) and Soy (Lecithin) Ingredients


Optimum nutrition serious mass gainer 5.4kg | GYM PHARMA

achetez optimum nutrition Serious mass le meilleur Gainer pour la prise de masse rapide pour les personnes ectomorphe au prix plus bas au maroc disponible chez gym pharma nutrition

UGS du produit: ONSERMASS5.45

Marque du produit: Optimum Nutrition

Devise du produit: MAD

Prix du produit: 849

Prix valable jusqu’au: 2023-07-20

Produit en stock: InStock

Note de l’éditeur/éditrice :
Poids 5,4 kg