---
product_id: 4359037
title: "TRUE-MASS Weight Gainer, Mass Gainer Protein Powder, Post Workout Muscle Recovery Powder, Muscle Gainer, 4:1 Carbs to Protein Ratio, Chocolate Milkshake, 10.38 Pound, 15 Servings"
brand: "bsn"
price: "¥39225"
currency: JPY
in_stock: true
reviews_count: 10
category: "Bsn"
url: https://www.desertcart.jp/products/4359037-true-mass-weight-gainer-mass-gainer-protein-powder-post-workout
store_origin: JP
region: Japan
---

# 215g complex carbs (rolled oats) 1200+ calories/serving 4:1 carbs-to-protein ratio TRUE-MASS Weight Gainer, Mass Gainer Protein Powder, Post Workout Muscle Recovery Powder, Muscle Gainer, 4:1 Carbs to Protein Ratio, Chocolate Milkshake, 10.38 Pound, 15 Servings

**Brand:** bsn
**Price:** ¥39225
**Availability:** ✅ In Stock

## Summary

> 💪 Bulk smarter, recover faster, and never miss a rep!

## Quick Answers

- **What is this?** TRUE-MASS Weight Gainer, Mass Gainer Protein Powder, Post Workout Muscle Recovery Powder, Muscle Gainer, 4:1 Carbs to Protein Ratio, Chocolate Milkshake, 10.38 Pound, 15 Servings by bsn
- **How much does it cost?** ¥39225 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/4359037-true-mass-weight-gainer-mass-gainer-protein-powder-post-workout)

## Best For

- bsn enthusiasts

## Why This Product

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

## Key Features

- • **Clean Complex Carbs:** 215g carbs primarily from rolled oats for sustained energy without the crash.
- • **Versatile Anytime Fuel:** Perfect post-workout, between meals, or before bed to keep your bulk on track.
- • **Extreme Caloric Powerhouse:** Fuel your gains with 1200+ calories per serving—no compromises.
- • **Multi-Source Protein Matrix:** 50g of premium proteins plus 12g BCAAs & 25g EAAs for superior muscle repair.
- • **Precision Carb-Protein Blend:** Optimized 4:1 ratio to maximize muscle recovery and growth.

## Overview

BSN TRUE-MASS 1200 is a premium mass gainer delivering over 1200 calories per serving with a scientifically balanced 4:1 carbohydrate-to-protein ratio. Featuring 50g of multi-source protein, 215g of complex carbs from rolled oats, and a rich amino acid profile, it’s designed for serious athletes and hard gainers seeking efficient muscle growth and recovery. Ideal for post-workout or anytime nutrition, this chocolate milkshake-flavored powder supports extreme training demands with clean, sustained energy.

## Description

TRUE-MASS 1200 by BSN is the ultimate formulation for the serious mass gainer in need of extreme caloric support alongside their intense, heavy workout schedule. TRUE-MASS 1200 features a 4:1 ratio of protein to carbohydrates, with 50g of BSN's ultra-premium protein matrix along with 215g of BSN’s unique complex carbohydrate blend that includes ground whole oats. The formula also includes 12 grams of naturally occurring BCAAs and 25 grams of EAAs per serving along with added dietary fiber and Medium Chain Triglycerides to round out the nutritional value of each shake. Used post-workout, between meals, and/or before bed, TRUE-MASS 1200 weight gainer can fuel your recovery from heavy training while providing the nutrients your body needs to keep on building.

Review: I've put on about 18lbs with the help of this stuff! - I've been working out for the last 6 months or so with the goal of putting on muscle mass & bulking up a bit. I'm a tall, skinny guy (aka hard gainer), and what makes things even more challenging is that I recently had a baby who I often take care of. If you've done any childcare, then you know how difficult it can be to get a decent meal in while the kid is crying and tearing the house up. It was almost impossible for me to get in enough calories to make any gains even though I hit the weights 3xs per week. I did some research and found out there were high calorie shakes that could help me with my weight goals. I read a bunch of desertcart reviews and I decided on ordering BSN True Mass (Chocolate flavor) and was surprised how decent it tasted. I've been through I think 4 or 5 tubs of this stuff so far, and I still don't mind drinking it. I guess I should try another flavor, but I'm a bit afraid the other flavors might not taste as good. I usually make a blended shake with frozen bananas & other fruits, milk or rice milk, and sometimes peanut butter. It's good stuff, pretty easy to drink, and I haven't noticed any gas or anything like that. My original goal was to go from a scrawny 153lbs to 163lbs. Well in just a few months I'm already at 171lbs! (I don't mean to sound like an infomercial, but it's true.) So now I'm setting a new goal of 193lbs (I'll keep you posted on the progress). About a month ago I was curious to check out some of the competing brands, so I tried ON's Serious Mass because it had pretty decent reviews and a good price. A word of advice-- ON Serious Mass tastes DISGUSTING!! I thought it would be similar to BSN True Mass, but it wasn't at all. The serving sizes were insane and the stuff tasted like oily rotten artificially flavored nastiness. I gagged a bit the first time I tried to drink ON Serious Mass it because it was so nasty. I usually don't leave too many reviews on desertcart, but Serious Mass was so bad that I wrote a one star review explaining why it tasted like crap. Do yourself a favor and spend the extra few bucks to get BSN True Mass (or some other brand that is not ON Serious Mass). Good luck with your gains!
Review: Protein - Great taste better than the junk at Walmart!

## Features

- BSN TRUE MASS 1200: The ultra-premium super mass gainer for extreme training
- MAXIMUM CALORIES: Contains over 1200 calories per serving – the highest amount made by BSN
- ULTIMATE CARB-PROTEIN MIX: 4:1 ratio of carbohydrates to protein
- ULTRA-PREMIUM PROTEIN MATRIX: 50g of multi-source protein per serving plus branched chain, essential, and non-essential amino acids
- PEAK CARB COUNT: 215g of carbohydrates per serving, primarily from rolled oats.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN  | B00BXLEDPI |
| Best Sellers Rank | #21,541 in Health & Household ( See Top 100 in Health & Household ) #17 in Sports Nutrition Weight Gainers #1,776 in Sales & Deals |
| Customer Reviews | 4.5 4.5 out of 5 stars (4,961) |
| Date First Available  | April 1, 2013 |
| Is Discontinued By Manufacturer  | No |
| Item model number  | 1047870 |
| Manufacturer  | Glanbia Performance Nutrition |
| Product Dimensions  | 11.5 x 5.5 x 16.65 inches; 10.25 Pounds |

## Product Details

- **Age Range (Description):** Adult
- **Brand:** BSN
- **Flavor:** Chocolate Milkshake
- **Item Form:** Powder
- **Item Weight:** 4649 Grams
- **Item dimensions L x W x H:** 11.5 x 5.5 x 16.65 inches
- **Package Information:** Bag
- **Primary Supplement Type:** Protein
- **Product Benefits:** Muscle Growth, Weight Gain
- **Unit Count:** 166.08 Ounce

## Images

![TRUE-MASS Weight Gainer, Mass Gainer Protein Powder, Post Workout Muscle Recovery Powder, Muscle Gainer, 4:1 Carbs to Protein Ratio, Chocolate Milkshake, 10.38 Pound, 15 Servings - Image 1](https://m.media-amazon.com/images/I/71BFec3EMjL.jpg)

## Available Options

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

## Questions & Answers

**Q: Is this okay to drink for someone who doesn't exercise but just needs to gain weight?**
A: Yes it is. Due to illness I lost over 30 pounds in less than 2 months. Dropped down to 98 pounds. I made smoothies and shakes with this to help put weight back on. I didn't use it as a meal replacement, I drank my smoothies with my meals and they supplemented my caloric intake. It worked well, gave me energy, and tastes really good.

**Q: Can it be used together ?**
A: Not sure what you want to use this product together with, but a healthy balanced diet of food and regular exercise program are essential for producing results.

**Q: What do you mix the powder with?**
A: Blend it with 16 Oz of milk and a couple scoops of Bryers natural strawberry ice cream (has to be that brand or the shake will taste wierd). Makes the best tasting protein shakes you'll ever have.

**Q: Can i just use 1 scoop**
A: Sure can. Use one scoop in the morning and another before bed. It's a good source of extra calories for the day.

## Customer Reviews

### ⭐⭐⭐⭐⭐ I've put on about 18lbs with the help of this stuff!
*by J***N on October 31, 2011*

I've been working out for the last 6 months or so with the goal of putting on muscle mass & bulking up a bit. I'm a tall, skinny guy (aka hard gainer), and what makes things even more challenging is that I recently had a baby who I often take care of. If you've done any childcare, then you know how difficult it can be to get a decent meal in while the kid is crying and tearing the house up. It was almost impossible for me to get in enough calories to make any gains even though I hit the weights 3xs per week. I did some research and found out there were high calorie shakes that could help me with my weight goals. I read a bunch of Amazon reviews and I decided on ordering BSN True Mass (Chocolate flavor) and was surprised how decent it tasted. I've been through I think 4 or 5 tubs of this stuff so far, and I still don't mind drinking it. I guess I should try another flavor, but I'm a bit afraid the other flavors might not taste as good. I usually make a blended shake with frozen bananas & other fruits, milk or rice milk, and sometimes peanut butter. It's good stuff, pretty easy to drink, and I haven't noticed any gas or anything like that. My original goal was to go from a scrawny 153lbs to 163lbs. Well in just a few months I'm already at 171lbs! (I don't mean to sound like an infomercial, but it's true.) So now I'm setting a new goal of 193lbs (I'll keep you posted on the progress). About a month ago I was curious to check out some of the competing brands, so I tried ON's Serious Mass because it had pretty decent reviews and a good price. A word of advice-- ON Serious Mass tastes DISGUSTING!! I thought it would be similar to BSN True Mass, but it wasn't at all. The serving sizes were insane and the stuff tasted like oily rotten artificially flavored nastiness. I gagged a bit the first time I tried to drink ON Serious Mass it because it was so nasty. I usually don't leave too many reviews on Amazon, but Serious Mass was so bad that I wrote a one star review explaining why it tasted like crap. Do yourself a favor and spend the extra few bucks to get BSN True Mass (or some other brand that is not ON Serious Mass). Good luck with your gains!

### ⭐⭐⭐⭐⭐ Protein
*by V***Y on January 8, 2026*

Great taste better than the junk at Walmart!

### ⭐⭐⭐⭐⭐ Get this if you can afford it, you won't be disappointed...
*by A***A on March 12, 2015*

Although expensive, I love True Mass. Not only do you get an optimal quality protein shake, but you can immediately feel the results with what you are getting. Doesn't make you bloat, you always feel stronger and you definitely gain LEAN muscle mass. You will have more energy and this lean muscle mass gainer will be efficiently adsorbed so your muscles can build at their best. I have been using this product for a few years now and I cannot use any other gainer; I'll just drink whole milk if I cannot afford this. I almost forgot to talk about how it tastes and how well it mixes because these or the least of my concerns when using products to work toward my goals. This mixes just as well if not better than any other protein shake out there. Can mix it with milk, water or both and whatever other supplements you have. If you have a blender bottle, there's no need to stir this powder or use a blender; just make sure you have good about of liquid comparative to the supplements you put in and shake until dissolved. The tastes depends on preference. I have tasted several flavors and all seem tolerable, but with what I mix with this powder, anything chocolate seems to be the best tasting to me. Overall they do taste like slightly modified milkshakes, and anybody looking for something tasting better need not waste their time with such trivial concerns. Get this if you are looking for an extra boost in your gains without all the hype and hardcore methods that come with gaining muscle mass.

## Frequently Bought Together

- BSN TRUE-MASS Weight Gainer, Muscle Mass Gainer Protein Powder, Chocolate Milkshake, 10.38 Pound (Package May Vary)
- BSN Micronized Creatine Monohydrate Powder, Unflavored, 2 Months Supply-60 Servings, 10.9 ounce
- BSN SYNTHA-6 Whey Protein Powder with Micellar Casein, Milk Protein Isolate, Chocolate Milkshake, 48 Servings (Packaging May Vary)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-15*