---
product_id: 78984636
title: "Vitamin B12 Sublingual Liquid Drops (5000 mcg) Plus B1 & B6 in Fastest Absorption Way. Best Formula to Support Brain Cells & Nerve Tissue, Enhance Red Blood Cell Function, Increase Energy & Metabolism"
brand: "biotoplevel"
price: "₩65544"
currency: KRW
in_stock: true
reviews_count: 8
category: "Biotoplevel"
url: https://www.desertcart.kr/products/78984636-vitamin-b12-sublingual-liquid-drops-5000-mcg-plus-b1-b6
store_origin: KR
region: South Korea
---

# Fastest sublingual absorption 5000 mcg B12 liquid drops Triple neurotrophic vitamins B1+B6+B12 Vitamin B12 Sublingual Liquid Drops (5000 mcg) Plus B1 & B6 in Fastest Absorption Way. Best Formula to Support Brain Cells & Nerve Tissue, Enhance Red Blood Cell Function, Increase Energy & Metabolism

**Brand:** biotoplevel
**Price:** ₩65544
**Availability:** ✅ In Stock

## Summary

> ⚡ Unlock your brain’s full potential with every drop!

## Quick Answers

- **What is this?** Vitamin B12 Sublingual Liquid Drops (5000 mcg) Plus B1 & B6 in Fastest Absorption Way. Best Formula to Support Brain Cells & Nerve Tissue, Enhance Red Blood Cell Function, Increase Energy & Metabolism by biotoplevel
- **How much does it cost?** ₩65544 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/78984636-vitamin-b12-sublingual-liquid-drops-5000-mcg-plus-b1-b6)

## Best For

- biotoplevel enthusiasts

## Why This Product

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

## Key Features

- • **Ultra-Fast Absorption:** Sublingual drops deliver 100x better bioavailability than pills
- • **Clean & Natural Formula:** 100% organic, preservative-free for safe daily use
- • **Energy & Metabolism Boost:** Clinically potent 5000 mcg dose to elevate energy and red blood cell function
- • **Triple Neurotrophic Power:** B1, B6 & methylcobalamin B12 combined for brain & nerve vitality
- • **Trusted Quality & Satisfaction:** BIOTOPLEVEL’s proprietary tech ensures premium results with zero adverse effects

## Overview

Vitamin B12 Sublingual Liquid Drops (5000 mcg) with B1 & B6 offer a cutting-edge, fast-absorbing formula designed to support brain cells, nerve tissue, and red blood cell function. Using BIOTOPLEVEL’s proprietary sublingual technology, this natural, preservative-free supplement delivers superior bioavailability—up to 100 times greater than traditional pills—boosting energy, metabolism, and cognitive clarity for busy professionals seeking peak performance.

## Description

Buy Vitamin B12 Sublingual Liquid Drops (5000 mcg) Plus B1 & B6 in Fastest Absorption Way. Best Formula to Support Brain Cells & Nerve Tissue, Enhance Red Blood Cell Function, Increase Energy & Metabolism on desertcart.com ✓ FREE SHIPPING on qualified orders

Review: Best product in the market. Hands down! - If you are used to taking regular Vitamin B12 pills from other brands, you will never go back after trying a good sublingual liquid form, such as this. Suffering from low levels of various vitamins and minerals, some of the downsides of B12 deficiency I have experienced over the years include low energy levels, brain function, irregular metabolism and mood. I have been taking sublingual B12 pills, but I decided to try this liquid formulation since it was the only one available in desertcart that included B1, B6 and B12 all in one product, to see if I got better absorption and results. I couldn’t be happier with this product! Among the many forms of B12 I've consumed, only this has produced a “boost” I can feel. Other forms of B12 I took previously helped me function regularly and maintained my energy levels stable, but I feel a “noticeable boost’’ in my energy since I am taking these drops. My brain and body are functioning better and I feel more clear and energetic. The flavor is pleasant, this natural product is definitely a great alternative to other pills or liquids.
Review: The best in years - I've been using this product since 2018. It's great quality. I suffer from acid reflux and take acid inhibitors, so I need sublingual B12 supplements, and this is the best I've used. Its latest 5000mcg formula with B1 and B6 gives me energy and helps my nervous system. It has a pleasant taste. I take it for 8 days, 10 drops per day, which is enough for my 49 years.

## Features

- ✅ THREE NEUROTROPHIC VITAMINS (B1+B6+B12 as methylcobalamin) are combined in our very unique formulation to be used sublingual and give you the fastest absorption and the highest optimal use of the vitamins into your body. Innovative formulation created in an easily absorbed liquid form to Support Brain Cells and Nerve Tissue, Enhance Red Blood Cell Function, Increase Energy and Metabolism.
- ✅ INNOVATIVE AND DIFFERENT TO THE STANDARDS FORMULATIONS, our 100% natural formulation is activated with a new and proprietary technology to potentiate the effect of the active ingredients in our product and give our customers an optimal absorption. This technology makes this formulation a unique product.
- ✅ SUBLINGUAL USE PROMOTES A FAST ACTING, Safe and Effective Response. The absorption of all the active ingredientes provided by Biotoplevel technology is equivalent to a value 100x greater than those of tables, caps, and any other liquid forms. Since the substances in our product are absorbed immediately under the tongue and get into the bloodstream without having to go through the gastrointestinal tract, our product provides the highest bioavailability or optimal use of all the ingredients.
- ✅ NO ADVERSE EFFECTS. Our formulation is all pure Natural and Organic, and does not contain any harmful preservatives. It is made with the highest-quality components available. Our customers get the desired results without feeling any adverse effect.
- ✅ CUSTOMER SATISFACTION has been the main objective of BIOTOPLEVEL over the years, it is the incentive to keep us researching and working hard to give our customers the best products with the highest quality.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN  | B078SJTTST |
| Best Sellers Rank | #156,152 in Health & Household ( See Top 100 in Health & Household ) #558 in Vitamin B12 Supplements |
| Customer Reviews | 4.3 4.3 out of 5 stars (325) |
| Date First Available  | January 3, 2018 |
| Is Discontinued By Manufacturer  | No |
| Manufacturer  | BIOTOPLEVEL |
| Package Dimensions  | 4.45 x 1.26 x 1.02 inches; 2.89 ounces |

## Product Details

- **Brand:** BIOTOPLEVEL
- **Diet Type:** Vegan
- **Flavor:** Strawberry
- **Item Form:** Liquid
- **Primary Supplement Type:** Vitamin B1, Vitamin B12, Vitamin B6

## Images

![Vitamin B12 Sublingual Liquid Drops (5000 mcg) Plus B1 & B6 in Fastest Absorption Way. Best Formula to Support Brain Cells & Nerve Tissue, Enhance Red Blood Cell Function, Increase Energy & Metabolism - Image 1](https://m.media-amazon.com/images/I/61EZEbxFjpL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Best product in the market. Hands down!
*by J***L on January 26, 2019*

If you are used to taking regular Vitamin B12 pills from other brands, you will never go back after trying a good sublingual liquid form, such as this. Suffering from low levels of various vitamins and minerals, some of the downsides of B12 deficiency I have experienced over the years include low energy levels, brain function, irregular metabolism and mood. I have been taking sublingual B12 pills, but I decided to try this liquid formulation since it was the only one available in Amazon that included B1, B6 and B12 all in one product, to see if I got better absorption and results. I couldn’t be happier with this product! Among the many forms of B12 I've consumed, only this has produced a “boost” I can feel. Other forms of B12 I took previously helped me function regularly and maintained my energy levels stable, but I feel a “noticeable boost’’ in my energy since I am taking these drops. My brain and body are functioning better and I feel more clear and energetic. The flavor is pleasant, this natural product is definitely a great alternative to other pills or liquids.

### ⭐⭐⭐⭐⭐ The best in years
*by G***E on February 4, 2026*

I've been using this product since 2018. It's great quality. I suffer from acid reflux and take acid inhibitors, so I need sublingual B12 supplements, and this is the best I've used. Its latest 5000mcg formula with B1 and B6 gives me energy and helps my nervous system. It has a pleasant taste. I take it for 8 days, 10 drops per day, which is enough for my 49 years.

### ⭐⭐⭐⭐⭐ Good vitamin
*by T***A on July 17, 2025*

I found this product very helpful for energy. Taste is not bad.

## Frequently Bought Together

- Vitamin B12 Sublingual Liquid Drops (5000 mcg) Plus B1 & B6 in Fastest Absorption Way. Best Formula to Support Brain Cells & Nerve Tissue, Enhance Red Blood Cell Function, Increase Energy & Metabolism
- BIOTOPLEVEL Liquid Glucosamine, Chondroitin, MSM, Biotin, Hyaluronic Acid, All in One Formula for Good Health of Joints, Bones, Hair, Skin & Nails
- BIOTOPLEVEL Liquid Turmeric Curcumin Plus Natural Organic Black Pepper.

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.kr/products/78984636-vitamin-b12-sublingual-liquid-drops-5000-mcg-plus-b1-b6](https://www.desertcart.kr/products/78984636-vitamin-b12-sublingual-liquid-drops-5000-mcg-plus-b1-b6)

---

*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-02-25*