---
product_id: 15331169
title: "21st Century B 12 2500 mcg Sublingual Tablets, 110 Count"
brand: "21st century"
price: "€ 17.20"
currency: EUR
in_stock: true
reviews_count: 13
category: "21st Century"
url: https://www.desertcart.ie/products/15331169-21st-century-b-12-2500-mcg-sublingual-tablets-110-count
store_origin: IE
region: Ireland
---

# no artificial additives 2500 mcg high potency fast sublingual absorption 21st Century B 12 2500 mcg Sublingual Tablets, 110 Count

**Brand:** 21st century
**Price:** € 17.20
**Availability:** ✅ In Stock

## Summary

> ⚡ Elevate your energy game with fast-acting, pure B12 power!

## Quick Answers

- **What is this?** 21st Century B 12 2500 mcg Sublingual Tablets, 110 Count by 21st century
- **How much does it cost?** € 17.20 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/15331169-21st-century-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
- • **Rapid Nutrient Delivery:** Sublingual tablets dissolve quickly for instant bloodstream absorption
- • **Ultra-High Potency Boost:** 2500 mcg B12 delivers maximum energy support daily
- • **Clinically Trusted Quality:** Manufactured in FDA-approved cGMP facility ensuring purity & potency
- • **Millennial-Approved Wellness:** Supports red blood cell formation & tissue growth for vibrant health

## 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 maintenance. With no artificial additives and manufactured under strict FDA-approved cGMP standards, these tablets ensure purity, freshness, and label potency. Perfect for busy professionals seeking a clean, effective boost to energy and wellness.

## Description

Product 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. From the Manufacturer Vitamin B-12 2500mcg Sublingual 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.10% FreePromotes tissue growth & maintenance*Essential for red blood cell formation*Sublingual release vitamins quickly release nutrients into the blood stream under the tongue, bypassing the digestive systemGluten freeIngredientsVitamin B-12Other IngredientsSucrose, Mannitol, Sorbitol, Cellulose, Crospovidone, Natural Cherry Flavor, Silicon Dioxide, Stearic Acid, Magnesium Stearate, Polyplasdone, Sucralose.DirectionsTake one (1) tablet daily with any meal for maximum daily results, or as directed by your healthcare provider. Do not exceed recommended dosage.Safety WarningsKeep out of reach of children. Do not use if product appears to be tampered with or seal is broken. Store at room temperature.Vitamin BB Vitamins play a key role in maintaining a healthy nervous system and provide support for energy metabolism.* 21st Century's mix of B Vitamin Complexes support a healthy nervous system and provide nourishment for the stress of daily living.*About 21st Century The 21st Century Difference: Refreshingly Innovative, Realistically Priced, Reassuringly Reliable21st Century has been providing quality vitamins and supplements to health minded consumers for over 20 years. We use only superior raw materials, cutting edge formulations and unique packaging: square vanilla-scented bottles, color-coordinated caps and easy-to-read labels. Our comprehensive product line offers the latest vitamin, mineral and specialty supplements, as well as standardized herbal extracts in vegetarian capsules, herbal slimming teas and natural deodorants. Our longevity and success bear testament to our continuous efforts in Research & Development. Our dedication to providing you with clinically developed and carefully blended formulations based on the latest scientific research, coupled with our commitment to state-of-the-art manufacturing and quality control enables us to provide innovative and affordable solutions for all your family’s health and wellness needs. We take great pride in providing you with a high quality product at a great price.The 21st Century Guarantee21st Century products are unconditionally guaranteed for purity, freshness and label potency. To safeguard your health and well-being, all 21st Century nutritional products are manufactured using ingredients which pass stringent quality assurance standards under rigorous laboratory protocols and current Good Manufacturing Practices (cGMP). Our FDA-approved manufacturing facility is in Tempe, Arizona, USA. *These statements have not been evaluated by the Food and Drug Administration. These products are 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 | #15,321 in Health & Household ( See Top 100 in Health & Household ) #93 in Vitamin B12 Supplements #1,449 in Sales & Deals |
| Customer Reviews | 4.7 4.7 out of 5 stars (5,919) |
| 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

![21st Century B 12 2500 mcg Sublingual Tablets, 110 Count - Image 1](https://m.media-amazon.com/images/I/619OWwf1LuL.jpg)

## 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

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-01-28*