---
product_id: 249603014
title: "Optimum Nutrition (ON) Serious Mass: High Protein Muscle Building & Weight Gainer Protein Powder, 50 Grams of Protein, Vitamin C, Zinc And Vitamin D For Immune Support - Chocolate, 6 Lbs (2.72 KG)"
brand: "optimum nutrition"
price: "R2415"
currency: ZAR
in_stock: true
category: "Optimum Nutrition"
url: https://www.desertcart.co.za/products/249603014-optimum-nutrition-on-serious-mass-high-protein-muscle-building-weight
store_origin: ZA
region: South Africa
---

# 25 Vitamins & Minerals + Creatine boost 50g Blended Protein for muscle recovery 1,250 Calories per serving Optimum Nutrition (ON) Serious Mass: High Protein Muscle Building & Weight Gainer Protein Powder, 50 Grams of Protein, Vitamin C, Zinc And Vitamin D For Immune Support - Chocolate, 6 Lbs (2.72 KG)

**Brand:** optimum nutrition
**Price:** R2415
**Availability:** ✅ In Stock

## Summary

> 💥 Bulk Up Boldly, Recover Rapidly!

## Quick Answers

- **What is this?** Optimum Nutrition (ON) Serious Mass: High Protein Muscle Building & Weight Gainer Protein Powder, 50 Grams of Protein, Vitamin C, Zinc And Vitamin D For Immune Support - Chocolate, 6 Lbs (2.72 KG) by optimum nutrition
- **How much does it cost?** R2415 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/249603014-optimum-nutrition-on-serious-mass-high-protein-muscle-building-weight)

## Best For

- optimum nutrition enthusiasts

## Why This Product

- Trusted optimum nutrition brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Clean Carb Surge:** Over 250g of carbohydrates with zero added sugar for sustained energy and lean mass.
- • **Calorie Powerhouse:** Fuel your gains with a massive 1,250 calories per serving—no more compromises.
- • **Recovery Amplifiers:** Enhanced with Creatine, Glutamine, and Glutamic Acid for faster post-workout recovery.
- • **Immune-Boosting Formula:** Infused with Vitamin C, Zinc, and Vitamin D to keep your defenses strong while you bulk.
- • **Protein-Packed Performance:** 50 grams of premium blended protein to accelerate muscle repair and growth.

## Overview

Optimum Nutrition Serious Mass is a high-calorie, high-protein weight gainer designed for serious muscle building. Each serving delivers 1,250 calories, 50 grams of blended protein, and over 250 grams of carbs with no added sugar, complemented by 25 essential vitamins and minerals plus recovery-enhancing creatine and amino acids. Perfect for professionals committed to maximizing muscle growth and immune support in a delicious chocolate flavor.

## Description

Product Description Serious Mass is the ultimate in weight gain formulas. With 1,250 calories per serving and 50 grams of protein for muscle recovery support, this instantized powder makes the ideal post-workout and between meals shake for sizing up your goals. Serious Mass provides you with the tools you need to pack on the pounds and help you develop the physique you’ve always wanted. Set Contains: 1 x Pack

## Features

- Adding Calories Has Never Been This Easy or Tasted So Good
- 1,250 Calories
- 50 Grams of Blended Protein & 25 Vitamins and Essential Minerals
- Over 250 Grams of Carbohydrates with NO ADDED SUGAR
- Creatine, Glutamine and Glutamic Acid

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B06XH28C1K |
| ASIN  | B06XH28C1K |
| Age Range Description | Adult |
| Best Sellers Rank | #1,084 in Health ( See Top 100 in Health ) #47 in Sports Supplements |
| Brand Name | Optimum Nutrition |
| Country of Publication | USA |
| Country of origin  | USA |
| Customer Reviews | 4.2 4.2 out of 5 stars (305) |
| Customer reviews | 4.2 4.2 out of 5 stars (305) |
| Diet Type | Vegetarian |
| Flavor | Chocolate |
| Is Discontinued By Manufacturer  | Yes |
| Item Dimensions | 8 x 4 x 6 centimeters |
| Item Nype Name | HEALTH_PERSONAL_CARE |
| Item Weight | 0.27 Kilograms |
| Item model number  | SERIOUS MASS CHOCOLATE 6lbs |
| Manufacturer | Optimum Nutrition |
| Manufacturer  | Optimum Nutrition |
| Manufacturer Part Number | SERIOUS MASS CHOCOLATE 6lbs |
| Material Type Free | Finished Product |
| Model Number | SERIOUS MASS CHOCOLATE 6lbs |
| Number of Items | 1 |
| Package Type Name | Bottle |
| Product Benefits | High Calorie, High Protein formula for Muscle and Mass Gain Support |
| Product Dimensions  | 8 x 4 x 6 cm; 272.1 g |
| Total Servings Per Container | 8 |
| UPC | 748927022995 748927070132 |
| Unit Count | 2720 Grams |

## Product Details

- **Brand:** Optimum Nutrition
- **Flavour:** Chocolate
- **Item weight:** 0.27 Kilograms
- **Material type free:** Finished Product
- **Servings per container:** 8

## Images

![Optimum Nutrition (ON) Serious Mass: High Protein Muscle Building & Weight Gainer Protein Powder, 50 Grams of Protein, Vitamin C, Zinc And Vitamin D For Immune Support - Chocolate, 6 Lbs (2.72 KG) - Image 1](https://m.media-amazon.com/images/I/71qpIQW5NlL.jpg)

## Available Options

This product comes in different **Size, Flavor** options.

## Questions & Answers

**Q: Can I need one kg**
A: Dear Valued Customer,

I hope this message finds you well.

We wanted to inform you that Optimum Serious Mass in the 1 kg variant is currently not in production by the company. However, we do have the following options available:

Optimum Nutrition (ON) Serious Mass: Chocolate, 12 Lbs (5.44 KG)
Optimum Nutrition (ON) Serious Mass: Chocolate, 6lb (2.73 KG)

Thank You!

**Q: When the date of expiry?**
A: 1 year ahead is the minimum requirement of all nutritional stuff in Amazone

**Q: Is there a version of this product without creatine?**
A: Hi,
This product contains Creatine. There is no version of this product without creatine.

**Q: What is the expiry date ?**
A: October/2022

## Frequently Bought Together

- OPTIMUM NUTRITION Serious Mass Chocolate No Sugar Added, 272.1 g
- Optimum Nutrition Gold Standard Whey Protein, Muscle Building Powder with Naturally Occurring Glutamine and Amino Acids, Double Rich Chocolate, 29 Servings, 899 g, Packaging May Vary
- Optimum Nutrition Micronised Creatine Powder, 100% Pure Creatine Monohydrate Powder for Performance and Muscle Power, Unflavoured Shake, 93 Servings, 317 g

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-08-28*