---
product_id: 15331169
title: "B 12 2500 mcg Sublingual Tablets, 110 Count"
brand: "21st century"
price: "€ 17.88"
currency: EUR
in_stock: true
reviews_count: 13
category: "21st Century"
url: https://www.desertcart.sk/products/15331169-b-12-2500-mcg-sublingual-tablets-110-count
store_origin: SK
region: Slovakia
---

# no artificial additives 2500 mcg high potency fast sublingual absorption B 12 2500 mcg Sublingual Tablets, 110 Count

**Brand:** 21st century
**Price:** € 17.88
**Availability:** ✅ In Stock

## Summary

> ⚡ Elevate your energy game with the B12 boost that works as fast as you do!

## Quick Answers

- **What is this?** B 12 2500 mcg Sublingual Tablets, 110 Count by 21st century
- **How much does it cost?** € 17.88 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/15331169-b-12-2500-mcg-sublingual-tablets-110-count)

## Best For

- 21st century enthusiasts

## Why This Product

- Trusted 21st century brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Clean & Pure Formula:** Free from salt, yeast, preservatives, artificial flavors, and colors
- • **Proven User Satisfaction:** Top-rated with 4.7 stars and thousands of positive reviews
- • **Ultra-High Potency Boost:** 2500 mcg B12 delivers maximum energy support per tablet
- • **Clinically Trusted Quality:** Manufactured in cGMP-certified facilities ensuring purity and potency
- • **Rapid Sublingual Absorption:** Dissolves quickly under the tongue for fast nutrient delivery

## Overview

21st Century B12 2500 mcg Sublingual Tablets provide a potent, fast-absorbing vitamin B12 supplement designed to support red blood cell formation and tissue growth. With a clean formula free from artificial additives and manufactured under strict cGMP standards, these tablets ensure purity, freshness, and label accuracy. Trusted by thousands with a 4.7-star rating, they offer a convenient, effective way to maintain optimal B12 levels and sustain energy throughout your busy day.

## Description

21st Century's Hi-Potency Sublingual Vitamin B-12 (Cyanocobalamin) promotes maintenance and growth of tissue and is essential for red blood cell formation.* Sublingual release vitamins quickly release nutrients into the blood stream under the tongue bypassing the digestive system. Unconditionally guaranteed for purity, freshness and label potency. No added Salt, Yeast, Preservatives, Artificial Flavors or Colors. 21st Century Vitamins and Supplements are manufactured in a cGMP facility under the strictest standards for product quality, including potency and purity. 21st Century prides itself on providing you with a great product at the best value. *This statement has not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

Review: Definitely work! - These B12 supplements have been great. About a year ago I found out I was quite low on B12. I actually had to get B12 shots for a while. After I was back to a more normal level I was told to use these. I was worried that supplements wouldn’t help, but these dissolve right under your tongue and so it goes right to your bloodstream. When I went back recently I was actually at the high end of normal!! These dissolve pretty quickly, taste alright, and are pretty small. Definitely would recommend.
Review: Value + - The 21st Century B12 1000 mcg Prolonged Release Tablets are a real bargain. I’ve noticed a difference in my energy levels, and the prolonged-release formula makes them easy on the system. Good quality, effective, and very affordable—definitely recommend if you need a reliable B12 supplement.

## Features

- It essential for red blood cell formation.
- Unconditionally guaranteed for purity, freshness and label potency.
- No added salt, yeast, preservatives, artificial flavors or colors.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN  | B001RN9BY0 |
| Best Sellers Rank | #15,997 in Health & Household ( See Top 100 in Health & Household ) #91 in Vitamin B12 Supplements #1,477 in Sales & Deals |
| Customer Reviews | 4.7 4.7 out of 5 stars (5,929) |
| Date First Available  | February 23, 2009 |
| Is Discontinued By Manufacturer  | No |
| Item model number  | 27112 |
| Manufacturer  | 21st Century |
| Product Dimensions  | 2.38 x 1.75 x 3.75 inches; 1.94 ounces |

## Product Details

- **Brand:** 21st Century
- **Diet Type:** Gluten Free
- **Flavor:** Cherry flavor
- **Item Form:** Tablet
- **Primary Supplement Type:** Vitamin B12

## Images

![B 12 2500 mcg Sublingual Tablets, 110 Count - Image 1](https://m.media-amazon.com/images/I/619OWwf1LuL.jpg)

## Available Options

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

## Questions & Answers

**Q: Is this product vegan?**
A: Sucrose (v), mannitol (v), sorbitol (v), cellulose (v), crospovidone (v), polyplasdone (a binder used in pharmaceuticals - unknown), natural cherry flavor (? - but presumably vegan,) silicone dioxide (v), stearic acid (can be derived from either a vegan or non-vegan source), magnesium stearate (can be derived from either a vegan or non-vegan source), sucralose (v)You'll have to decide for yourself how you feel or call the maker. 21st Century Phone:480-966-8201Toll Free: (800) 530-2178	Fax:(480) 927-9300Email Support: GoodHealth@21stcenturyvitamins.com

**Q: contain shellfish ?**
A: I don't see shellfish in the ingredients list: B-12 as Cyanocobalamin; other ingredients: Sucrose, Mannitol, Sorbitol, Cellulose, Crospovidone, Polyplasdone, Natural Cherry Flavor, Silicon Dioxide, Stearic Acid, Magnesium Stearate, Sucralose.

**Q: how many mg is 1 tablet ?**
A: There's 2500 micrograms in 1 tablet so that is equivalent to 2.5 milligrams.

**Q: Does anyone know the flavor of 1000 mg tablets?**
A: The flavor of this tablet is like cherry.  I don’t used them my husband does.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Definitely work!
*by L***N on June 18, 2025*

These B12 supplements have been great. About a year ago I found out I was quite low on B12. I actually had to get B12 shots for a while. After I was back to a more normal level I was told to use these. I was worried that supplements wouldn’t help, but these dissolve right under your tongue and so it goes right to your bloodstream. When I went back recently I was actually at the high end of normal!! These dissolve pretty quickly, taste alright, and are pretty small. Definitely would recommend.

### ⭐⭐⭐⭐⭐ Value +
*by P***T on December 16, 2025*

The 21st Century B12 1000 mcg Prolonged Release Tablets are a real bargain. I’ve noticed a difference in my energy levels, and the prolonged-release formula makes them easy on the system. Good quality, effective, and very affordable—definitely recommend if you need a reliable B12 supplement.

### ⭐⭐⭐⭐⭐ B12
*by T***A on November 5, 2025*

Great flavor. Great price

## Frequently Bought Together

- 21st Century B 12 2500 mcg Sublingual Tablets, 110 Count
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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-02-09*