---
product_id: 700861579
title: "Mass - Natural Weight Gainer Protein Powder - 12LB Bulk, NSF Certified, GMO Free, Gluten Free & Soy Free. No Artificial Ingredients - 1,250 Calories per Serving"
brand: "naked"
price: "¥53684"
currency: JPY
in_stock: true
reviews_count: 13
category: "Naked"
url: https://www.desertcart.jp/products/700861579-mass-natural-weight-gainer-protein-powder-12lb-bulk-nsf-certified
store_origin: JP
region: Japan
---

# Gluten-free organic tapioca carbs 50g Protein per serving 1,250 Calories for serious gains Mass - Natural Weight Gainer Protein Powder - 12LB Bulk, NSF Certified, GMO Free, Gluten Free & Soy Free. No Artificial Ingredients - 1,250 Calories per Serving

**Brand:** naked
**Price:** ¥53684
**Availability:** ✅ In Stock

## Summary

> 🚀 Bulk smarter, not harder with Naked Mass—clean calories, pure muscle fuel!

## Quick Answers

- **What is this?** Mass - Natural Weight Gainer Protein Powder - 12LB Bulk, NSF Certified, GMO Free, Gluten Free & Soy Free. No Artificial Ingredients - 1,250 Calories per Serving by naked
- **How much does it cost?** ¥53684 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/700861579-mass-natural-weight-gainer-protein-powder-12lb-bulk-nsf-certified)

## Best For

- naked enthusiasts

## Why This Product

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

## Key Features

- • **Calorie King:** Massive 1,250 calories and 252g carbs per serving to fuel unstoppable growth.
- • **Versatile Fuel:** Unflavored and mixable—perfect for shakes, smoothies, or custom high-calorie recipes.
- • **Pure Power Trio:** Only 3 clean ingredients—no artificial junk, just Naked Whey, Casein & organic maltodextrin.
- • **Certified Clean Gains:** NSF Certified for purity, GMO-free, soy & gluten-free—trust your body with the best.
- • **Multi-Phase Protein Boost:** Fast-absorbing whey plus slow-digesting casein keeps muscle synthesis firing all day.

## Overview

NAKED Mass is a premium 12LB bulk weight gainer protein powder featuring a clean, minimal ingredient list with no artificial additives. Each serving delivers 50g of protein from grass-fed whey and micellar casein, 1,250 calories, and 252g of gluten-free organic tapioca carbs. NSF Certified and free from GMOs, soy, gluten, and artificial ingredients, it supports serious muscle growth and weight gain with trusted purity and multi-phase protein release.

## Description

Buy NAKED Mass - Natural Weight Gainer Protein Powder - 12LB Bulk, NSF Certified, GMO Free, Gluten Free & Soy Free. No Artificial Ingredients - 1,250 Calories per Serving on desertcart.com ✓ FREE SHIPPING on qualified orders

Review: Best Weight Gainer I’ve Used — Almost 10 Years - I’ve been using Naked Mass for almost 10 years, and it is by far my favorite weight gainer/protein shake. A lot of other protein powders I’ve tried make me feel sick or like I’m going to throw up, especially ones with a long list of fillers, artificial ingredients, and synthetic-tasting flavors. What keeps me coming back to Naked Mass is how simple and natural it is. It doesn’t have that strong artificial taste, and my body handles it much better than other weight gainers I’ve tried. It makes it easy for me to add calories and protein when I’m trying to build muscle and gain weight. I always get the unflavored version because it gives me the freedom to add my own organic flavorings. I can make it chocolate, vanilla, or switch up the flavor whenever I want instead of being stuck with the same taste every day. After almost a decade of using it, I keep choosing it over everything else. If you want a straightforward weight gainer without a bunch of unnecessary ingredients, I highly recommend it.
Review: Amazing!! - I can't say enough good things about this mass gainer. I finally decided to switch to naked Mass after months of contemplation, because the natural aspect of it made me a little hesitant. I switched from Optimum Nutrition, chocolate flavor because up until now that was the only protein that had a bearable flavor in my opinion. But drinking that one made me feel so terrible for ingesting the artificial ingredients, and just felt so unhealthy consuming that in place of food. Sometimes I have a hard time eating, so I needed something natural that I could feel good about consuming when I am not able to eat food. After sometime, the ON chocolate one became so unbearably sweet and heavy that I would have a hard time finishing it and end up pouring half of it down the drain. I'm so glad I found this stuff, I got the unflavored one in hopes that I could find something that was not overly sweet but still had a delicious flavor. This protein powder is perfect because it has the calories and protein and nutrients that I need, it has only three ingredients and nothing artificial, plus it has an amazing flavor, and I actually feel good about drinking it because it only has a couple of essential ingredients and feels healthy and Light. I have been mixing it with almond milk and I'm literally obsessed.!! The unflavored one has a very very slight vanilla ice cream flavor, with only a hint of sweetness, not overwhelming at all and just perfectly balanced and creamy. I fear that I'm probably going to gain a lot with this because it just tastes so yummy and I'll be drinking it throughout the day and night :) Thank you!!

## Features

- ONLY THREE INGREDIENTS: Naked Whey, Naked Casein and Organic Maltodextrin (made from gluten free organic tapioca). Naked Mass contains no artificial sweeteners, flavors, or colors and is GMO Free, No rBGH or rBST, Soy Free and Gluten Free.
- MAXIMUM NUTRITION: 50g of Protein, 252g of Carbs, 1,250 Calories, 11.5g of BCAAs (branched-chain amino acids) per serving and only 5g sugar - compare vs other weight gain supplements for bulking. As an NSF Certified protein powder, Naked Mass is verified for purity and safety.
- MULTI-PHASE CLEAN PROTEIN: Keep protein synthesis up by combining fast release grass-fed whey with slow-digesting micellar casein. Plus, get the healthy amino acids your body needs. Combine with a high-calorie diet and exercise to gain weight and transform yourself from a hard gainer to a pro gainer.
- PREMIUM COMPLEX CARBOHYDRATES: Unlike other weight gainer supplements that use wheat-based maltodextrins, Naked Mass is a serious, true mass gainer and uses gluten free organic tapioca maltodextrin for clean source complex carbohydrates.
- BEST WEIGHT GAINER SHAKES AND RECIPES: Our unflavored super mass gainer protein powder is versatile for making smoothies and recipes. Boost calories and give your body optimum nutrition by adding Naked Mass to homemade protein bars, shakes, and more.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0DJ6FF1GW |
| Allergen Information | Egg Free, Gluten Free, Non-GMO, Preservative-Free, Soy Free |
| Best Sellers Rank | #5,351 in Health & Household ( See Top 100 in Health & Household ) #3 in Sports Nutrition Weight Gainers |
| Brand | NAKED |
| Brand Name | NAKED |
| Caffeine Content Description | Caffeine Free |
| Customer Reviews | 4.2 out of 5 stars 2,323 Reviews |
| Diet Type | Gluten Free, Vegetarian |
| Flavor | Unflavored |
| Item Dimensions | 8 x 8.03 x 11.06 inches |
| Item Weight | 12 pounds |
| Manufacturer | NAKED nutrition |
| Manufacturer Part Number | unflavoredmass |
| Material Type Free | Caffeine Free, No Artificial Colors, No Artificial Flavors, No Artificial Sweeteners, Soy Free |
| Number of Items | 1 |
| Package Type Name | Canister |
| Product Benefits | Meal Replacement, Muscle Growth, Weight Gain |
| Protein | 50 g |
| Protein Source | Blend, Casein, Whey |
| Recommended Uses For Product | Post-Workout |
| UPC | 850066113165 |
| Unit Count | 192 Ounce |
| Vitamins And Minerals | 489, 489, 75 milligrams |

## Product Details

- **Brand:** NAKED
- **Diet Type:** Gluten Free, Vegetarian
- **Flavor:** Unflavored
- **Item Weight:** 12 pounds
- **Material Type Free:** Caffeine Free, No Artificial Colors, No Artificial Flavors, No Artificial Sweeteners, Soy Free

## Images

![Mass - Natural Weight Gainer Protein Powder - 12LB Bulk, NSF Certified, GMO Free, Gluten Free & Soy Free. No Artificial Ingredients - 1,250 Calories per Serving - Image 1](https://m.media-amazon.com/images/I/61-0EA31ifL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Best Weight Gainer I’ve Used — Almost 10 Years
*by J***N on August 13, 2026*

I’ve been using Naked Mass for almost 10 years, and it is by far my favorite weight gainer/protein shake. A lot of other protein powders I’ve tried make me feel sick or like I’m going to throw up, especially ones with a long list of fillers, artificial ingredients, and synthetic-tasting flavors. What keeps me coming back to Naked Mass is how simple and natural it is. It doesn’t have that strong artificial taste, and my body handles it much better than other weight gainers I’ve tried. It makes it easy for me to add calories and protein when I’m trying to build muscle and gain weight. I always get the unflavored version because it gives me the freedom to add my own organic flavorings. I can make it chocolate, vanilla, or switch up the flavor whenever I want instead of being stuck with the same taste every day. After almost a decade of using it, I keep choosing it over everything else. If you want a straightforward weight gainer without a bunch of unnecessary ingredients, I highly recommend it.

### ⭐⭐⭐⭐⭐ Amazing!!
*by T***K on December 28, 2024*

I can't say enough good things about this mass gainer. I finally decided to switch to naked Mass after months of contemplation, because the natural aspect of it made me a little hesitant. I switched from Optimum Nutrition, chocolate flavor because up until now that was the only protein that had a bearable flavor in my opinion. But drinking that one made me feel so terrible for ingesting the artificial ingredients, and just felt so unhealthy consuming that in place of food. Sometimes I have a hard time eating, so I needed something natural that I could feel good about consuming when I am not able to eat food. After sometime, the ON chocolate one became so unbearably sweet and heavy that I would have a hard time finishing it and end up pouring half of it down the drain. I'm so glad I found this stuff, I got the unflavored one in hopes that I could find something that was not overly sweet but still had a delicious flavor. This protein powder is perfect because it has the calories and protein and nutrients that I need, it has only three ingredients and nothing artificial, plus it has an amazing flavor, and I actually feel good about drinking it because it only has a couple of essential ingredients and feels healthy and Light. I have been mixing it with almond milk and I'm literally obsessed.!! The unflavored one has a very very slight vanilla ice cream flavor, with only a hint of sweetness, not overwhelming at all and just perfectly balanced and creamy. I fear that I'm probably going to gain a lot with this because it just tastes so yummy and I'll be drinking it throughout the day and night :) Thank you!!

### ⭐⭐⭐⭐⭐ Really Works
*by R***N on September 10, 2026*

The best. Really works. Easy to drink. Not too sweet.

## Frequently Bought Together

- NAKED Mass - Natural Weight Gainer Protein Powder - 12LB Bulk, GMO Free, Gluten Free & Soy Free. No Artificial Ingredients - 1,250 Calories per Serving
- NAKED Pure Micronized Creatine Monohydrate – 200 Servings, 1,000g Bulk – Vegan, Non-GMO, Gluten & Soy Free - Muscle Building, Strength Training, Gym & Fitness Supplement
- NAKED WHEY 5LB 100% Grass Fed Unflavored Whey Protein Powder - Only 1 Ingredient, Undenatured - No GMO, Soy or Gluten - No Preservatives - Promote Muscle Growth and Recovery - 76 Servings

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-10-22*