---
product_id: 253468835
title: "(ON) Serious Mass: High Protein Muscle Building & Weight Gainer Protein Powder, 50 Grams of Protein, Vitamin C, Zinc And Vitamin D For Immune Support - Vanilla, 6 Lbs (2.72 KG)"
brand: "optimum nutrition"
price: "KSh26912"
currency: KES
in_stock: true
reviews_count: 8
url: https://www.desertcart.co.ke/products/253468835-on-serious-mass-high-protein-muscle-building-and-weight-gainer
store_origin: KE
region: Kenya
---

# 25 Vitamins & Minerals + Creatine boost 50g Blended Protein for muscle growth 1250 Calories per serving (ON) Serious Mass: High Protein Muscle Building & Weight Gainer Protein Powder, 50 Grams of Protein, Vitamin C, Zinc And Vitamin D For Immune Support - Vanilla, 6 Lbs (2.72 KG)

**Brand:** optimum nutrition
**Price:** KSh26912
**Availability:** ✅ In Stock

## Summary

> 🚀 Bulk up smarter, not harder with Serious Mass!

## Quick Answers

- **What is this?** (ON) Serious Mass: High Protein Muscle Building & Weight Gainer Protein Powder, 50 Grams of Protein, Vitamin C, Zinc And Vitamin D For Immune Support - Vanilla, 6 Lbs (2.72 KG) by optimum nutrition
- **How much does it cost?** KSh26912 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.ke](https://www.desertcart.co.ke/products/253468835-on-serious-mass-high-protein-muscle-building-and-weight-gainer)

## 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 carbs with zero added sugar—energy that works as hard as you do.
- • **Advanced Recovery Complex:** Creatine, Glutamine, and Glutamic Acid team up for faster muscle repair and growth.
- • **Immune-Boosting Essentials:** Vitamin C, Zinc, and Vitamin D included to keep you strong inside and out.
- • **Massive Calorie Powerhouse:** Fuel your gains with a whopping 1,250 calories per serving—because size matters.
- • **Protein-Packed Muscle Builder:** 50 grams of premium blended protein to accelerate recovery and sculpt your physique.

## Overview

Optimum Nutrition Serious Mass is a high-calorie weight gainer designed for serious muscle growth and recovery. Each serving delivers 1,250 calories, 50 grams of blended protein, and over 250 grams of carbohydrates without added sugar. Enhanced with 25 essential vitamins and minerals plus creatine and amino acids, it supports immune health and accelerates muscle repair—perfect for professionals committed to leveling up their fitness game.

## 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

Review: this good - this good
Review: هل يزيد بالوزن - Good product fast delivery

## 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 | B0015R6ZPQ |
| Age Range Description | Adult |
| Allergen Information | Milk, Soy |
| Best Sellers Rank | #1,629 in Health ( See Top 100 in Health ) #64 in Sports Supplements #3,152 in Vitamins, Minerals & Supplements |
| Brand | Optimum Nutrition |
| Brand Name | Optimum Nutrition |
| Country of Publication | USA |
| Customer Reviews | 4.2 out of 5 stars 47,119 Reviews |
| Diet Type | Vegetarian |
| Diet type | Vegetarian |
| Flavor | Vanilla |
| Flavour | Vanilla |
| Global Trade Identification Number | 00748927023008 |
| Item Dimensions | 20.5 x 20.5 x 26.4 centimeters |
| Item Nype Name | HEALTH_PERSONAL_CARE |
| Item Weight | 6 Pounds |
| Item weight | 6 Pounds |
| Manufacturer | Optimum Nutrition |
| Material Type Free | Caffeine Free |
| Material type free | Caffeine Free |
| Net Content Volume | 11.91 Liters |
| Number of Items | 1 |
| Package Type Name | Tub |
| Product Benefits | Immune Support, Muscle Growth, Weight management |
| Protein Source | Whey |
| Recommended Uses For Product | Immune Support |
| Servings per container | 8 |
| Supplement Formulation | Multi-Supplement |
| Total Servings Per Container | 8 |
| UPC | 748927023008 748927070040 |
| Unit Count | 2720 Grams |

## Product Details

- **Brand:** Optimum Nutrition
- **Flavour:** Vanilla
- **Item weight:** 6 Pounds
- **Material type free:** Caffeine Free
- **Servings per container:** 8

## Images

![(ON) Serious Mass: High Protein Muscle Building & Weight Gainer Protein Powder, 50 Grams of Protein, Vitamin C, Zinc And Vitamin D For Immune Support - Vanilla, 6 Lbs (2.72 KG) - Image 1](https://m.media-amazon.com/images/I/71YmthhE0ML.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

## Customer Reviews

### ⭐⭐⭐⭐⭐ this good
*by H***L on 29 December 2025*

this good

### ⭐⭐⭐⭐⭐ هل يزيد بالوزن
*by H***L on 10 December 2025*

Good product fast delivery

### ⭐⭐⭐⭐ Will recommend
*by M***. on 3 December 2025*

It works superbly

## Frequently Bought Together

- Optimum Nutrition Serious Mass, Weight Gainer Protein Powder, Mass Gainer, Vitamin C and Zinc for Immune Support, Creatine, Vanilla, 6 Pound (Packaging May Vary)
- Optimum Nutrition Micronized Creatine Monohydrate Powder, Unflavored, 60 Servings, 300 Grams (Packaging May Vary)
- VELOMIX -2 Pack- 28 oz Protein Shaker Bottles for Protein Mixes - 2x Wire Whisk | Leak Proof Shaker Cups for Protein Shakes | Protein Shaker Bottle Pack | Shakers for Protein Shakes-Black&Transparent

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*Product available on Desertcart Kenya*
*Store origin: KE*
*Last updated: 2026-02-14*