---
product_id: 252445966
title: "Fully Active B Complex, 30 Veggie Caps"
brand: "doctor's best"
price: "₩40287"
currency: KRW
in_stock: true
reviews_count: 5
category: "Doctor's Best"
url: https://www.desertcart.kr/products/252445966-fully-active-b-complex-30-veggie-caps
store_origin: KR
region: South Korea
---

# 1000 mcg active B12 for energy MTHF active folate, no synthetic folic acid 30 vegan capsules Fully Active B Complex, 30 Veggie Caps

**Brand:** doctor's best
**Price:** ₩40287
**Availability:** ✅ In Stock

## Summary

> 💼 Power your hustle with the B-complex that works as hard as you do!

## Quick Answers

- **What is this?** Fully Active B Complex, 30 Veggie Caps by doctor's best
- **How much does it cost?** ₩40287 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/252445966-fully-active-b-complex-30-veggie-caps)

## Best For

- doctor's best enthusiasts

## Why This Product

- Trusted doctor's best brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Pure & Potent Folate:** Uses natural MTHF, the body-ready folate, avoiding synthetic folic acid’s absorption issues.
- • **Maximum B12 Absorption:** 1000 mcg of fully active B12 ensures superior uptake for nervous system support.
- • **Optimized Energy Boost:** Generous doses of fully active B vitamins fuel your metabolism and brain power.
- • **Clean & Conscious Formula:** Vegan, gluten-free, soy-free capsules crafted for the mindful professional.
- • **Metabolism & Immune Support:** Supports carbohydrate metabolism and immune health to keep you performing at your peak.

## Overview

Doctor's Best Fully Active B Complex delivers 30 vegan capsules packed with the most bioavailable forms of B vitamins, including 1000 mcg of active B12 and natural MTHF folate. Designed for optimal absorption and metabolism support, this gluten- and soy-free formula fuels energy production, brain function, and immune health—perfect for professionals seeking a clean, effective daily boost.

## Description

The breakthrough features of this formulation include: supplies only the best-utilized b vitamin forms. Most b vitamin supplements use cheap forms that are not optimally utilized in the body. This formulation does not compromise-it provides generous amounts of the most active b vitamins. Substitutes naturally fully active folate for synthetic folic acid. Folic acid is an artificial folate that is difficult for the body to assimilate. This formulation instead provides the body's most fully active folate, MTHF (methyl-tetra-hydro-folate). Provides sufficient, fully active vitamin B12. Very few supplements provide sufficient amounts of active vitamin B12. This formulation provides 1000 micrograms of fully active B12 to help ensure excellent oral absorption. Thiamin ("vitamin B1") is fundamental to human metabolism because it is essential for the metabolism of oxygen. The microscopic "power plants" of our cells (mitochondria) require thiamin to generate energy, but elsewhere in the cells it is also required for energy generation. Thiamin is important for metabolizing amino acids, the building blocks of proteins, but is especially important for managing sugar and other carbohydrates, and can be depleted by high-carbohydrate diets. Thiamine even helps support the delicate blood vessels of the retina and other tissues in the presence of high levels of circulating blood sugar. This vitamin is absorbed only as thiamin (not as other thiamin vitamins) in the upper small intestine. Alcohol can impair the proteins that transport thiamin, and high alcohol consumption is linked to thiamine deficiency. The brain and other nervous tissues have especially high thiamin requirements. Other organs with high oxygen requirements, such as the heart, also have high demand for thiamine.

Review: جميل - السعر مناسب وجوده عاليه وسرعه التوصيل
Review: Good VIT B - Good Items

## Features

- Brand :Doctors Best
- Product Size : 30 Vegetarian Capsules
- Type : Vitamin B Complex

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00DWDZPBG |
| Age Range Description | Adult |
| Allergen Information | Gluten Free, Soy Free |
| Best Sellers Rank | #11,610 in Health ( See Top 100 in Health ) #132 in Vitamin B Supplements |
| Brand | Doctor's Best |
| Brand Name | Doctor's Best |
| Color | tan |
| Customer Reviews | 4.6 out of 5 stars 2,636 Reviews |
| Diet Type | Vegan |
| Diet type | Vegan |
| Dosage Form | Capsule |
| Flavor | Unflavored |
| Flavour | Unflavored |
| Global Trade Identification Number | 00753950002999 |
| Item Dimensions | 5.4 x 5.4 x 9.5 centimeters |
| Item Form | Capsule |
| Item Weight | 0.04 Kilograms |
| Item form | Capsule |
| Manufacturer | Doctors Be |
| Material Type Free | en_AE |
| Model Name | Doctor ' S Best Fully Active Nongmo Gluten Free Vegan Count |
| Number of Items | 30 |
| Primary Supplement Type | B-Complex |
| Primary supplement type | B-Complex |
| Product Benefits | Metabolism Improvement |
| Product benefits | Metabolism Improvement |
| Specific Uses For Product | Immune Support |
| UPC | 753950002999 |
| Unit Count | 30 Count |

## Product Details

- **Brand:** Doctor's Best
- **Diet type:** Vegan
- **Flavour:** Unflavored
- **Item form:** Capsule
- **Primary supplement type:** B-Complex

## Images

![Fully Active B Complex, 30 Veggie Caps - Image 1](https://m.media-amazon.com/images/I/61+Zpf3mO1L.jpg)

## Questions & Answers

**Q: Is this made in usa? whether any ingredients are sourced from china?**
A: Personally, I find it bizarre that this question is asked so often. No matter where the product is made or source, do you actually think that the end product would not have to meet purity standards in order to be sold here in the US?  I googled the Kingdomway Group for further information, and it turns out they've been in business since 1998, selling vitamin A, D, DHA, Co-q-10, etc.. And NEWSFLASH: Probably 90% of all supplement companies get their raw materials from China, just like 90% of everything we buy in the US has some components made overseas.  Sheesh...

**Q: Can anyone tell me how large the capsules are? I am looking for a supplement for my daughter and she has some trouble swallowing large pills.**
A: Capsules have a rating system like 0,1,2 like small medium and large. This capsule is clear, unmarked and is 3/4 inch in length. It is not a creepy hard tablet that sticks to your throat.  I don't think that is considered the large - more medium.  It goes down well. For a child though might consider a chewable or liquid, although B's aren't that tasty to me.  The important thing is to get the Quatrefolic, the Cadillac of the folates. Drs Best has great B's.

**Q: Is this comparable to nutritional yeast?**
A: Better than nutritional yeast, I think. Both are bioactive. Like natural yeast, this complex has the active forms of Bs, so they can be utilized by people who cannot metabolize folic acid and other non-active b vitamins. About 45% of the population have what is called an MTHFR gene mutation, for instance, that doesn't allow them to metabolize the synthetic form of folate, folic acid.  As such, they lose out then on one pathway to healthy methylation - and production of neurotransmitters, hormones, immune and digestion enzymes and more.

But this is a much higher dosage than you can get in nutritional yeast without eating cupsful of it.  It's okay if the amounts of b vitamins, which are water-soluable, are high, as your body just burns off what you don't need.  But if you are deficient in a particular b vitamin(s), your body may need these higher amounts.  Nutritional yeast also needs to be supplemented with a active from of b12, such as methycobalamin, because it doesn't contain B12.

Nutritional yeast would be great for someone who knows they have good b-vitamin values already and are just looking to maintain.  But taking a daily active B12 supplement with the yeast would be generally be recommended.

**Q: Why is Dr. Best fully active B complex so inexpensive? And what is the purpose of absorbing acid  ( a synthetic vitamin c ) included in the formula?**
A: Well you're only getting 30 pills.  But also, this is a good brand IMO.  They're not trying to gouge the customer.  Not sure about your formulation question.

## Customer Reviews

### ⭐⭐⭐⭐⭐ جميل
*by A***N on 21 November 2020*

السعر مناسب وجوده عاليه وسرعه التوصيل

### ⭐⭐⭐⭐⭐ Good VIT B
*by A***A on 7 November 2019*

Good Items

### ⭐⭐⭐⭐ جيد جدا
*by A***D on 16 August 2022*

جيد جدا الطعم لابس به نوع ما

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- Doctor's Best Vitamin C with Q-C - Vitamin C 1000mg Non-GMO, Vegan, Gluten Free, Soy Free, Sourced from Scotland Veggie Caps, 120 Count

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-01-23*