---
product_id: 11164054
title: "MASON NATURAL Vitamin B1 Thiamine 250 mg, Support Energy, 100 Day Supply | 250 mg high-potency thiamine to support energy production, normal metabolism & nervous system function"
brand: "mason natural"
price: "¥2865"
currency: JPY
in_stock: true
category: "Mason Natural"
url: https://www.desertcart.jp/products/11164054-mason-natural-vitamin-b1-thiamine-250-mg-support-energy-100
store_origin: JP
region: Japan
---

# 250 mg pure Thiamine B1 Clean, allergen-free formula 100-day supply, once daily MASON NATURAL Vitamin B1 Thiamine 250 mg, Support Energy, 100 Day Supply | 250 mg high-potency thiamine to support energy production, normal metabolism & nervous system function

**Brand:** mason natural
**Price:** ¥2865
**Availability:** ✅ In Stock

## Summary

> ⚡ Unlock your energy potential with every tablet!

## Quick Answers

- **What is this?** MASON NATURAL Vitamin B1 Thiamine 250 mg, Support Energy, 100 Day Supply | 250 mg high-potency thiamine to support energy production, normal metabolism & nervous system function by mason natural
- **How much does it cost?** ¥2865 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/11164054-mason-natural-vitamin-b1-thiamine-250-mg-support-energy-100)

## Best For

- mason natural enthusiasts

## Why This Product

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

## Key Features

- • **Clean & Pure Formula:** Free from soy, gluten, artificial colors, and preservatives—because you deserve the best.
- • **Supports Vital Systems:** Boosts central nervous, cardiovascular, pulmonary, and immune health for holistic wellness.
- • **100 Days of Daily Energy:** One tablet a day keeps fatigue away—long-lasting support for your busy lifestyle.
- • **Trusted Legacy of Quality:** Over 50 years of rigorous testing and cGMP compliance for your peace of mind.
- • **Power-Packed 250 mg Thiamine:** High-potency B1 to fuel your nervous system and energy metabolism.

## Overview

MASON NATURAL Vitamin B1 Thiamine delivers a potent 250 mg dose of pure thiamine in an easy-to-swallow tablet, designed for adults seeking daily energy support. With a clean, allergen-free formula and a 100-day supply, this supplement supports nervous system function and helps convert food into vital energy. Backed by over 50 years of trusted manufacturing standards, it promotes overall health including cardiovascular, pulmonary, and immune systems.

## Description

What if you ate plenty of delicious food and yet had very little energy? That is how you might feel if you were severely deficient in any of the B-complex vitamins. Vitamin B1, along with B2, B12 and niacin are essential nutrients that play important roles in energy production, particularly in the metabolism of carbohydrates, fats and proteins. Without sufficient B1, you would feel weary, fatigued, and find it hard to function normally. The B vitamins are in a family of nutrients called coenzymes that help enzymes perform essential chemical reactions. This helps energy production, but also reactions critical to the function of neurotransmitters, hormones, digestive enzymes, mineral metabolism, and many more. Vitamin B1 helps to support the health of the central nervous system, cardiovascular system, pulmonary system, immune system and muscle function, which is why it is considered essential.

## Features

- DAILY ENERGY SUPPORT: Easy-to-swallow high-potency thiamine tablets for adults 18+ to take once daily, preferably with food, as a dietary supplement
- PURE THIAMINE (B1): Our potent formula delivers 250 mg of pure thiamine (B1) to support nervous system function and help convert food into energy
- BENEFITS: Vitamin B1 is part of a coenzyme family that assists enzymes in crucial chemical reactions, supporting the health of the central nervous, cardiovascular, pulmonary, & immune systems
- CLEAN INGREDIENTS: Soy & sodium free, with no added starch, wheat, corn, yeast, egg, artificial colors or flavors, gluten, fragrance, & preservatives
- TRUSTED FOR OVER 50 YEARS: Mason Natural has produced quality vitamin supplements for over five decades, adhering to cGMPs (current Good Manufacturing Practices) and US guidelines with rigorous testing & inspections

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0050NMR9O |
| ASIN  | B0050NMR9O |
| Age Range Description | Adult |
| Allergen Information | Soy Free |
| Best Sellers Rank | #17,678 in Health & Household ( See Top 100 in Health & Household ) #17 in Vitamin B1 (Thiamine) Supplements #1,522 in Sales & Deals |
| Brand Name | MASON NATURAL |
| Color | No Color |
| Customer Reviews | 4.6 4.6 out of 5 stars (3,424) |
| Date First Available  | May 13, 2011 |
| Diet Type | Vegetarian |
| Dosage Form | Tablet |
| Flavor | Unflavored |
| Global Trade Identification Number | 00311845056610 |
| Item Dimensions | 2 x 2 x 4.1 inches |
| Item Form | Tablet |
| Item Weight | 2.9 ounces |
| Item model number  | B002VPE80K |
| Manufacturer | Mason Vitamins |
| Manufacturer  | Mason Vitamins |
| Manufacturer Part Number | B002VPE80K |
| Model Name | NATURAL, Vitamin B-1 Thiamine Tablets, 250 Mg, 100-Count Bottle, Dietary Supplement Supports Energy Production and Healthy Metabolism, Helps Break Down Fats and Protein |
| Model Number | B002VPE80K |
| Number of Items | 1 |
| Primary Supplement Type | Multivitamins |
| Product Benefits | Energy Management |
| Product Dimensions  | 2 x 2 x 4.1 inches; 2.9 ounces |
| Special Ingredients | Thiamin (Vitamin B1) |
| Specific Uses For Product | Energy Health |
| UPC | 311845056610 |
| Unit Count | 100 Count |

## Product Details

- **Brand:** MASON NATURAL
- **Diet Type:** Vegetarian
- **Flavor:** Unflavored
- **Item Form:** Tablet
- **Primary Supplement Type:** Multivitamins

## Images

![MASON NATURAL Vitamin B1 Thiamine 250 mg, Support Energy, 100 Day Supply | 250 mg high-potency thiamine to support energy production, normal metabolism & nervous system function - Image 1](https://m.media-amazon.com/images/I/71SW29wcvaL.jpg)

## Available Options

This product comes in different **Unit Count** options.

## Frequently Bought Together

- MASON NATURAL Vitamin B-1 Thiamine 250 mg, 100 Day Supply Dietary Supplement, Easy-to-Swallow Tablets, Support Energy Production & Healthy Metabolism
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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-08-29*