Optimum Nutrition
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Optimum Nutrition Serious Mass Protein Powder, 2.73 Kg, 8 Servings
Optimum Nutrition Serious Mass Protein Powder, 2.73 Kg, 8 Servings
Optimum Nutrition Serious Mass Protein Powder, 2.73 Kg, 8 Servings
Optimum Nutrition Serious Mass Protein Powder, 2.73 Kg, 8 Servings
Optimum Nutrition Serious Mass Protein Powder, 2.73 Kg, 8 Servings
Optimum Nutrition Serious Mass Protein Powder, 2.73 Kg, 8 Servings
Optimum Nutrition Serious Mass Protein Powder, 2.73 Kg, 8 Servings
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Optimum Nutrition Serious Mass Protein Powder, 2.73 Kg, 8 Servings
Optimum Nutrition Serious Mass Protein Powder, 2.73 Kg, 8 Servings
Optimum Nutrition Serious Mass Protein Powder, 2.73 Kg, 8 Servings
Optimum Nutrition Serious Mass Protein Powder, 2.73 Kg, 8 Servings
Optimum Nutrition Serious Mass Protein Powder, 2.73 Kg, 8 Servings
Optimum Nutrition Serious Mass Protein Powder, 2.73 Kg, 8 Servings
Optimum Nutrition Serious Mass Protein Powder, 2.73 Kg, 8 Servings
Serious Mass is the ultimate in weight gain formulas with 1,250 calories and 50 grams of protein per serving
Optimum Nutrition Serious Mass Protein Powder, 2.73 Kg, 8 Servings
Item #: 8580559

Optimum Nutrition Serious Mass Protein Powder, 2.73 Kg, 8 Servings

88% of respondents would recommend this to a friend

Item #: 8580559

XPF 8548

Price Details

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*All items will import from UK

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Order now and get it around Wednesday, October 07
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Serious Mass is the ultimate in weight gain formulas with 1,250 calories and 50 grams of protein per serving
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What Stands Out

High Calorie Boost
Packed with high calories, this mass gainer effectively supports weight gain, helping hard gainers and athletes build muscle and achieve their fitness goals effortlessly.
Nutrient-Rich Formula
Includes essential vitamins, creatine, and glutamine to enhance recovery and muscle growth, ensuring your body gets the nutrients it needs for optimal performance.
Delicious Vanilla Flavor
Enjoy a tasty shake with the smooth vanilla flavor, making it easy and enjoyable to incorporate into your daily nutrition routine without compromising on taste.

Product Details

Shop the high-calorie weight gainer with vitamins, minerals, creatine, and glutamine. Boost muscle growth and recovery. Available in multiple flavors. Order now from Ubuy Wallis and Futuna Islands!
  • Packaging may vary - New look, with the same trusted Quality!
  • Exposure to heat or sunlight may lead to melting/damage of product. Customers are expected to be available during product delivery.
  • 1,250 Calories per 2-Scoop Serving
  • 50 Grams of Protein per Serving
  • Over 250 Grams of Carbohydrates per Serving
  • 25 Vitamins & Minerals Plus Creatine & Glutamine
FlavourVanilla
Diet TypeVegetarian
BenefitsWeight Gain
Protein12 g, 15 g
Vitamins And Minerals0.57 g, 0.57, 0.6 milligrams
Brand NameOptimum Nutrition
Package Type NameTub
Age Range DescriptionAdult
Model NameOptimum Nutrition Serious
Global Trade Identification Number00748927023008
UPC748927023008 748927070040
Manufacturer Contact Information4 Waterside, Dublin 24, Ireland
ManufacturerOPTIG
Model Number1098370
Manufacturer Part Number1098370
Item Weight0.9 Kilograms
Item Dimensions15.6 x 15.6 x 24.8 centimetres
Total Servings Per Container32.0
Unit Count2730.0 gram
Number of Items1
Net Content Volume11.91 Litres
Recommended Uses For ProductPost-Workout, Pre-Workout
Allergen InformationContains: Milk, Soy
Material Type FreeCaffeine Free
BrandOptimum Nutrition
Servings per container32.0
Product benefitsWeight Gain

Who Should Buy?

Suitable For
  • Athletes in Training

    Ideal for athletes looking to gain mass and improve recovery through a high-calorie protein supplement.

  • Hardgainers

    Perfect for individuals with high metabolism struggling to gain weight or muscle mass effectively.

  • Post-Workout Recovery

    Beneficial for those needing a quick post-exercise protein source to aid in recovery and muscle growth.

Not Suitable For
  • Weight Management

    Not suitable for individuals focused on losing weight or maintaining a caloric deficit for fat loss.

Product Description

Dietary Supplement Disclaimer

Statements regarding dietary supplements have not been evaluated by the Food and Drug Administration and are not intended to diagnose, treat, cure, or prevent any disease or health condition.


Have any Query? Chat with us

Customer Questions & Answers

  • Question: Which allergens are present in the product?

    Answer: The product contains allergens like milk, egg, wheat (Glutamine peptides), and soy (lecithin).
  • Question: How may exposure to heat or sunlight affect the product?

    Answer: Exposure to heat or sunlight may lead to the melting/damage of the product. Hence customers are expected to be available during the product delivery.
  • Question: What is the recommended serving size?

    Answer: The recommended serving size is 2 scoops per serving.

Optimum Nutrition Protein Blends 1098370 Editorial Review

  • ubuy Wallis and Futuna Islands
  • ubuy Wallis and Futuna Islands
  • ubuy Wallis and Futuna Islands
  • ubuy Wallis and Futuna Islands
  • ubuy Wallis and Futuna Islands
  • ubuy Wallis and Futuna Islands
  • ubuy Wallis and Futuna Islands
  • ubuy Wallis and Futuna Islands
  • ubuy Wallis and Futuna Islands
  • ubuy Wallis and Futuna Islands
  • ubuy Wallis and Futuna Islands
  • ubuy Wallis and Futuna Islands
  • ubuy Wallis and Futuna Islands
  • ubuy Wallis and Futuna Islands
  • ubuy Wallis and Futuna Islands

Optimum Nutrition Serious Mass Protein Powder, 2.73 Kg, 8 Servings is an excellent choice for those seeking to gain weight and muscle mass. Each serving packs around 1,250 calories and 50g of protein, complemented by creatine, glutamine, and essential vitamins and minerals, making it a comprehensive supplement. Users have praised its taste, especially when mixed with milk, and its filling nature, making it easier to increase calorie intake without feeling overstuffed. Many individuals struggling with a small appetite have found it to be life-changing, helping them gain weight and muscle efficiently. It's suitable for both post and pre-workout, catering to various workouts and dietary needs.

Customer Reviews & Ratings

12664 customers ratings
  • 5 Star
    73%
  • 4 Star
    14%
  • 3 Star
    8%
  • 2 Star
    2%
  • 1 Star
    3%

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Pros

  • Very good taste compared to many mass gainers
  • Extremely filling and satisfying
  • High calorie content helps with weight gain
  • Includes protein, creatine, glutamine and vitamins
  • Good quality from a well-known brand

Cons

  • A full serving can be quite large for some users

Platform Trust & Buyer Confidence

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4.2/5 9477 reviews
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JK
Jasmin
Verified buyer

“Great products and very good service: very easy and very fast international delivery.”

9 September 2026 · via Trustpilot
AG
Anke
Verified buyer

“Wonderful online shopping experience, smooth transaction from the start. Payment method works conveniently and delivery is unexpectedly fast and reliable. You go the extra mile for service. What makes this even more amazing, you deliver to Namibia. I will remain a happy Ubuy customer and will increase my purchases for sure! Thank you!”

10 September 2026 · via Trustpilot
H
Hazel
Verified buyer

“Very easy to find the products what you need, and so fast delivery, that’s why I highly recommended to others costumers to used ubuy.”

10 September 2026 · via Trustpilot
O
Opaleye
Verified buyer

“I received exactly what I ordered I was skeptical about your site because that was my first time to order. But the order came timely and neatly packaged. I was not disappointed. Thank you.”

11 September 2026 · via Trustpilot
AC
Adele
Verified buyer

“Easy to find and order what you want on the website. Delivery is quick to the UK”

8 September 2026 · via Trustpilot
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Important information

  • Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
  • Not all the products listed on Ubuy are for sale, as Ubuy is a global search engine. Products are subject to export/trade regulations.

XPF 8548

Order now and get it around Wednesday, October 07

QTY:

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PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.

Our Top Logistics Partners
  • fedex
  • dhl
Fastest cross-border delivery

Features & Benefits

  • 1,250 calories per 2 scoop serving
  • 50 grams of protein per serving
  • Over 250 grams of carbohydrates per serving
  • Contains 25 vitamins and minerals plus creatine and glutamine
  • Ideal post-workout and between meals shake
  • Allows addition of calorie-dense foods for increasing weight gain

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