---
product_id: 253302628
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 - Strawberry, 6 Lbs (2.72 KG)"
brand: "optimum nutrition"
price: "$174.46"
currency: USD
in_stock: true
reviews_count: 13
category: "Optimum Nutrition"
url: https://www.desertcart.us/products/253302628-optimum-nutrition-on-serious-mass-high-protein-muscle-building-weight
store_origin: US
region: United States of America
---

# 50g blended protein 1250 calories/serving 25 vitamins & minerals 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 - Strawberry, 6 Lbs (2.72 KG)

**Brand:** optimum nutrition
**Price:** $174.46
**Availability:** ✅ In Stock

## Summary

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

## 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 - Strawberry, 6 Lbs (2.72 KG) by optimum nutrition
- **How much does it cost?** $174.46 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/253302628-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

- • **Power-Packed Protein:** 50 grams of premium blended protein to accelerate muscle recovery and growth.
- • **Massive Calorie Boost:** Fuel your gains with 1,250 calories per serving—because size matters.
- • **Deliciously Convenient:** Strawberry flavor that makes hitting your macros a treat, not a chore.
- • **Immune-Boosting Formula:** Infused with Vitamin C, Zinc, and Vitamin D to keep you strong inside and out.
- • **Enhanced Performance Blend:** Includes Creatine, Glutamine & Glutamic Acid for next-level workout support.

## Overview

Optimum Nutrition Serious Mass is a high-calorie weight gainer delivering 1,250 calories and 50 grams of blended protein per serving, enriched with 25 essential vitamins and minerals plus performance enhancers like creatine and glutamine. Designed for serious muscle builders seeking rapid size gains and immune support, this strawberry-flavored powder is your ultimate post-workout and between-meal shake.

## 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.

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
- 50 Grams of Blended Protein
- Creatine, Glutamine and Glutamic Acid & 25 Vitamins and Essential Minerals

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0015R36XU |
| ASIN  | B0015R36XU |
| Additives | Creatine, Glutamine |
| Age Range Description | Kid |
| Allergen Information | Eggs, Milk, Soy, Wheat |
| Best Sellers Rank | #1,236 in Health ( See Top 100 in Health ) #741 in Multiple Vitamin-Mineral Combination Supplements |
| Brand | Optimum Nutrition |
| Country of origin | us |
| Customer Reviews | 4.2 4.2 out of 5 stars (47,119) |
| Customer reviews | 4.2 4.2 out of 5 stars (47,119) |
| Date First Available | 7 August 2012 |
| Department  | unisex-adult |
| Format | Powder |
| Is Discontinued By Manufacturer  | No |
| Item model number  | 1031919 |
| Manufacturer  | Optimum Nutrition |
| Product Dimensions  | 20.32 x 20.32 x 25.7 cm; 2.72 kg |
| Product Name | HEALTH_PERSONAL_CARE |
| Serving Recommendation | 2 Heaping Scoop |
| Units | 2730 Grams |
| Weight | 7 Pounds |

## Product Details

- **Brand:** Optimum Nutrition
- **Flavour:** Strawberry
- **Item weight:** 2.72 kg
- **Material type free:** Sugar Free
- **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 - Strawberry, 6 Lbs (2.72 KG) - Image 1](https://m.media-amazon.com/images/I/7195s9ZoYzL.jpg)

## Available Options

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

## 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, Strawberry, 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 United States of America*
*Store origin: US*
*Last updated: 2026-02-28*