---
product_id: 18548319
title: "Serious Mass, Weight Gainer Protein Powder, Mass Gainer, Vitamin C and Zinc for Immune Support, Creatine, Chocolate Peanut Butter, 12 Pound (Packaging May Vary)"
brand: "optimum nutrition"
price: "₱20599"
currency: PHP
in_stock: true
reviews_count: 8
category: "Optimum Nutrition"
url: https://www.desertcart.ph/products/18548319-serious-mass-weight-gainer-protein-powder-mass-gainer-vitamin-c
store_origin: PH
region: Philippines
---

# 250g carbs per serving 50g blended protein 1200+ kcal/serving Serious Mass, Weight Gainer Protein Powder, Mass Gainer, Vitamin C and Zinc for Immune Support, Creatine, Chocolate Peanut Butter, 12 Pound (Packaging May Vary)

**Brand:** optimum nutrition
**Price:** ₱20599
**Availability:** ✅ In Stock

## Summary

> 🚀 Bulk Up Boldly with Serious Mass — Because Gains Wait for No One!

## Quick Answers

- **What is this?** Serious Mass, Weight Gainer Protein Powder, Mass Gainer, Vitamin C and Zinc for Immune Support, Creatine, Chocolate Peanut Butter, 12 Pound (Packaging May Vary) by optimum nutrition
- **How much does it cost?** ₱20599 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ph](https://www.desertcart.ph/products/18548319-serious-mass-weight-gainer-protein-powder-mass-gainer-vitamin-c)

## 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

- • **Calorie Powerhouse:** Fuel your gains with 1,200+ calories per 2-scoop serving—because serious size demands serious energy.
- • **Carb-Loaded for Mass:** 250 grams of fast-absorbing carbohydrates to replenish glycogen and maximize weight gain potential.
- • **Immune Boost Formula:** Packed with Vitamin C and Zinc to keep your defenses strong while you bulk up.
- • **Customizable Shake Experience:** Blend with fruits, peanut butter, or nuts for a personalized, calorie-dense shake that fits your lifestyle.
- • **Muscle-Building Protein Blend:** 50 grams of premium whey protein to support lean muscle growth and recovery after every workout.

## Overview

Optimum Nutrition Serious Mass is a high-calorie weight gainer delivering over 1,200 calories, 50g of blended whey protein, and 250g of carbohydrates per 2-scoop serving. Enhanced with 20+ vitamins and minerals including immune-supporting Vitamin C and Zinc, it’s designed for busy professionals and fitness enthusiasts aiming for serious muscle growth and weight gain. Versatile enough to customize with your favorite calorie boosters, this 12-pound tub fuels your post-workout recovery and daily calorie needs with convenience and proven results.

## Description

More calories. More protein. More carbs. SERIOUS MASS by Optimum Nutrition serves over 1,200 calories, 50g of blended protein, and over 249g of carbohydrates per 2-scoop serving to help you maximize your daily caloric intake – the ideal post-workout and between meals shake for sizing up your goals. SERIOUS MASS provides you with more tools to help you pack on pounds, when taken in addition to normal calorie intake and over time with regular resistance training.

Review: lives up to its name - Serious Mass really lives up to its name. If you’re looking to put on size, this is one of the easiest ways to get a huge calorie and protein boost in one shake.. The taste is solid (I’ve tried Chocolate and Vanilla), though it’s definitely thick — I usually blend mine with milk or add a banana/peanut butter to make it smoother. It’s filling, so I don’t use it every day, but on heavy training days it’s perfect. The bag is big and lasts a while, though it can be a bit pricey. Overall, a great option if you’re serious about bulking and need extra calories.
Review: Best Purchase that Money can Buy - My most recent purchase from desertcart was the protein supplement, Optimum Nutrition Serious Mass. The reason I am writing this review (I usually don’t write reviews, unless the product is exceptional) is because I’ve found this product to be extremely helpful in my fitness goals. As a male in college, I don’t always have a lot of time on my hands. As you can imagine, college students often have varying and complicated schedules that require convenience and on-the-go products for our busy lives. But this product is definitely not only for college students but for people of all walks of life; people who need the right amount of nutrients and calories in a quick and convenient way that tailors to their schedule. I’ve been using this protein shake for quite some time now as this has been my fourth or fifth purchase. I wanted to wait for some time to see if this product does indeed have any positive effect on my fitness goals, so in short, Serious Mass by Optimum Nutrition does work. Who is this for? Serious Mass protein powder is for anyone looking to gain weight in a healthy, convenient, and safe way. It is for people who may need a boost in their weight due to their health situations, for lifters, bodybuilders, athletes, fitness enthusiasts and the list goes on. As for me, I am using this product to add on more weight when I go to the gym to lift and to increase muscle mass. Convenience Naturally, I have an extremely high metabolism. Since I am a hard gainer, to acquire more weight I need to eat a lot throughout the day. Because of time constraints and busy schedules, Serious Mass makes it easy to consume, essentially, a high-caloric meal. How much to use? The directions for this protein shake asks for a serving of two scoops; however, I have found this to be way too much as it is too chunky and thick even with the help of a blender. I suggest to use just one scoop as the scoop that’s included is very large with it being already about 625 calories. You can use this as a meal replacement but for optimal effect, this should be taken in between meals and before bed. Personal Experience I personally have found this extremely beneficial in gaining muscle. Within a couple of weeks to a month there are noticeable gains in muscle growth. As for taste, the protein powder actually tastes good unlike other brands; so far I’ve had strawberry and chocolate, both are very good. The only small issue that I have had with Serious Mass (along with all other protein powder supplements) is the need to use a bathroom relatively soon after consuming this product. As with many protein powder and supplements, it usually increases bowel movement. Then again it can be thought of as a small sacrifice to the greater benefits that are to come. Despite this review being quite lengthy, I truly hope that your goals will be met for whatever situation you try to achieve. As I have found this product very helpful; I hope that it too will benefit you all as well. Best wishes to your health and journey!

## Features

- HIGH CALORIE WEIGHT GAINER: More than 1,200 calories per 2-scoop serving
- 50 grams of blended protein per 2-scoop serving
- 250 grams of carbohydrates per 2-scoop serving
- With over 20 vitamins and minerals including Vitamin C and Zinc to provide immune support
- MORE VERSATILITY: Using an electric blender, add fresh or frozen fruits, peanut butter, nuts, and other calorie dense foods to boost your weight gain potential

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00OV0VYHI |
| Age Range Description | Adult |
| Allergen Information | Milk, Soy |
| Best Sellers Rank | #32,031 in Health & Household ( See Top 100 in Health & Household ) #23 in Sports Nutrition Weight Gainers #2,205 in Sales & Deals |
| Brand | Optimum Nutrition |
| Brand Name | Optimum Nutrition |
| Caffeine Content Description | Caffeine Free |
| Customer Reviews | 4.5 out of 5 stars 2,631 Reviews |
| Diet Type | Vegetarian |
| Flavor | Chocolate Peanut Butter |
| Global Trade Identification Number | 00748927052572 |
| Item Dimensions | 11.5 x 5.5 x 16 inches |
| Item Weight | 12 Pounds |
| Manufacturer | Glanbia Performance Nutrition |
| Manufacturer Part Number | 1056371 |
| Material Type Free | Caffeine Free |
| Model Name | ON SERIOUS MASS CHOC PB 12LB |
| Model Number | 1056371 |
| Number of Items | 1 |
| Package Type Name | Tub |
| Product Benefits | Immune Support, Muscle Growth, Weight Gain |
| Protein | 50 Grams |
| Protein Source | Whey |
| Recommended Uses For Product | Calorie Increase, Muscle Growth, Post-Workout, Weight Gain |
| Servings per Container | 16 |
| Supplement Formulation | Multi-Supplement |
| Total Servings Per Container | 16 |
| UPC | 748927052572 |
| Unit Count | 192.0 Ounce |
| Vitamins And Minerals | 0.9, 3.7, 30, 5, 700 Milligrams |

## Product Details

- **Brand:** Optimum Nutrition
- **Flavor:** Chocolate Peanut Butter
- **Item Weight:** 12 Pounds
- **Material Type Free:** Caffeine Free
- **Servings per Container:** 16

## Images

![Serious Mass, Weight Gainer Protein Powder, Mass Gainer, Vitamin C and Zinc for Immune Support, Creatine, Chocolate Peanut Butter, 12 Pound (Packaging May Vary) - Image 1](https://m.media-amazon.com/images/I/511yjH27xML.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ lives up to its name
*by K***K on December 14, 2025*

Serious Mass really lives up to its name. If you’re looking to put on size, this is one of the easiest ways to get a huge calorie and protein boost in one shake.. The taste is solid (I’ve tried Chocolate and Vanilla), though it’s definitely thick — I usually blend mine with milk or add a banana/peanut butter to make it smoother. It’s filling, so I don’t use it every day, but on heavy training days it’s perfect. The bag is big and lasts a while, though it can be a bit pricey. Overall, a great option if you’re serious about bulking and need extra calories.

### ⭐⭐⭐⭐⭐ Best Purchase that Money can Buy
*by A***R on September 18, 2016*

My most recent purchase from Amazon was the protein supplement, Optimum Nutrition Serious Mass. The reason I am writing this review (I usually don’t write reviews, unless the product is exceptional) is because I’ve found this product to be extremely helpful in my fitness goals. As a male in college, I don’t always have a lot of time on my hands. As you can imagine, college students often have varying and complicated schedules that require convenience and on-the-go products for our busy lives. But this product is definitely not only for college students but for people of all walks of life; people who need the right amount of nutrients and calories in a quick and convenient way that tailors to their schedule. I’ve been using this protein shake for quite some time now as this has been my fourth or fifth purchase. I wanted to wait for some time to see if this product does indeed have any positive effect on my fitness goals, so in short, Serious Mass by Optimum Nutrition does work. Who is this for? Serious Mass protein powder is for anyone looking to gain weight in a healthy, convenient, and safe way. It is for people who may need a boost in their weight due to their health situations, for lifters, bodybuilders, athletes, fitness enthusiasts and the list goes on. As for me, I am using this product to add on more weight when I go to the gym to lift and to increase muscle mass. Convenience Naturally, I have an extremely high metabolism. Since I am a hard gainer, to acquire more weight I need to eat a lot throughout the day. Because of time constraints and busy schedules, Serious Mass makes it easy to consume, essentially, a high-caloric meal. How much to use? The directions for this protein shake asks for a serving of two scoops; however, I have found this to be way too much as it is too chunky and thick even with the help of a blender. I suggest to use just one scoop as the scoop that’s included is very large with it being already about 625 calories. You can use this as a meal replacement but for optimal effect, this should be taken in between meals and before bed. Personal Experience I personally have found this extremely beneficial in gaining muscle. Within a couple of weeks to a month there are noticeable gains in muscle growth. As for taste, the protein powder actually tastes good unlike other brands; so far I’ve had strawberry and chocolate, both are very good. The only small issue that I have had with Serious Mass (along with all other protein powder supplements) is the need to use a bathroom relatively soon after consuming this product. As with many protein powder and supplements, it usually increases bowel movement. Then again it can be thought of as a small sacrifice to the greater benefits that are to come. Despite this review being quite lengthy, I truly hope that your goals will be met for whatever situation you try to achieve. As I have found this product very helpful; I hope that it too will benefit you all as well. Best wishes to your health and journey!

### ⭐⭐⭐⭐⭐ BUY THIS, GET BIG
*by T***R on March 24, 2017*

Tastes great and includes creatine and glutamine which were two supplements I had to take alongside my previous protein. I add a tablespoon of instant coffee with the serving (2 scoops) of this mass gainer and it tastes really good. The only supplements I take that aren't included in the shake are L-Arginine, Citrulline, and a multivitamin. I suggest either taking a probiotic or eating some yogurt everyday to keep your digestive system in check and get the most out of your increased calories! Everyone talks about protein but they forget about carbohydrates and if you want to get big you need A LOT carbohydrates post workout and throughout the day. As for the price, it may seem high, but, when you consider it includes creatine, glutamine, and it has more calories than a large meal per serving, it is actually an amazing price! Remember to eat a lot of real food throughout the day too. The scoop is HUGE! Do not buy a normal sized (24 oz) shaker cup. You might be able to squeeze it into a 28 oz but I would suggest 32 oz or higher. That being said it actually mixes easier than any protein I have tried, it is just a large volume. Get the chocolate peanut butter flavor and put some instant coffee in there! I mix with water and it tastes awesome. This is probably my new protein long term. As long as you take this only after you workout it seems to all be packed on as muscle at least for me. Obviously if you just sit on a couch and drink this stuff you would get huge. This stuff is all around perfect for skinny dudes and hard gainers like myself. If I had a time machine, I would tell myself in high school to take this stuff! PRO TIP: The scoop is buried in the bag, do not dig around for it like an animal! Open the bag, if you do not see it close the bag and invert it a few times, open the bag again. Repeat until you see the scoop! This stuff is sticky by the way, so you really don't want to dig around in it.

## Frequently Bought Together

- Optimum Nutrition Serious Mass, Weight Gainer Protein Powder, Mass Gainer, Vitamin C and Zinc for Immune Support, Creatine, Chocolate Peanut Butter, 12 Pound (Packaging May Vary)
- Optimum Nutrition Micronized Creatine Monohydrate Powder, Unflavored, 120 Servings, 600 Grams (Packaging May Vary)

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*Product available on Desertcart Philippines*
*Store origin: PH*
*Last updated: 2026-03-15*