--- product_id: 11979895 title: "Vitamin B-12 1000 mcg Prolonged Release Tablets, 110 Count" brand: "21st century" price: "€ 16.71" currency: EUR in_stock: true reviews_count: 13 url: https://www.desertcart.hr/products/11979895-vitamin-b-12-1000-mcg-prolonged-release-tablets-110-count store_origin: HR region: Croatia --- # Prolonged release for sustained support 1000 mcg B12 for all-day energy Tiny, easy-to-swallow tablet Vitamin B-12 1000 mcg Prolonged Release Tablets, 110 Count **Brand:** 21st century **Price:** € 16.71 **Availability:** ✅ In Stock ## Summary > ⚡ Unlock your brainpower and energy—one tiny tablet at a time! ## Quick Answers - **What is this?** Vitamin B-12 1000 mcg Prolonged Release Tablets, 110 Count by 21st century - **How much does it cost?** € 16.71 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/11979895-vitamin-b-12-1000-mcg-prolonged-release-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 - • **One Tablet, All Day:** Prolonged release formula delivers steady B12 absorption without multiple doses - • **Pure & Clean Formula:** Gluten-free with zero artificial additives for trusted daily wellness - • **Stay Sharp & Focused:** Supports neurological function and mental clarity for peak performance - • **Power Through Your Day:** 1000 mcg B12 fuels natural energy production to crush afternoon slumps - • **Effortless Daily Routine:** Compact, easy-to-swallow tablets make consistency a breeze ## Overview 21st Century Vitamin B-12 1000 mcg Prolonged Release Tablets provide a potent, sustained dose of essential B12 to support energy metabolism, neurological health, and red blood cell formation. With 110 easy-to-swallow tablets, this gluten-free formula ensures over three months of consistent, clean supplementation designed for busy professionals seeking mental clarity and all-day vitality. ## Description Promote healthy tissues and blood cells with 21st Century Vitamin B-12. This member of the B complex, also known as cyanocobalamin, promotes the grown and maintenance of tissue and is essential for red blood cell formation. ## Features - [Feel the difference in your energy] 1000 mcg B12 supports your body's natural energy production so you can power through your day without the afternoon slump - [Your brain and nerves depend on B12] this essential vitamin supports neurological function, mental clarity, and mood so you stay sharp and focused daily - [No more remembering to take vitamins twice] the prolonged release design means one tablet works all day, slowly releasing B12 for hours of sustained support - [Tiny tablet, big results] the compact, easy-to-swallow size means no struggling with large capsules, making your daily health routine effortless and consistent - [Clean formula you can trust every day] gluten free with no artificial additives, so you get pure B12 support without unnecessary ingredients or fillers - [110 tablets means over 3 months of daily support in one purchase] stock up less often and stay consistent with your B12 routine without interruption ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B0007PQARK | | Date First Available | October 2, 2002 | | Item Model Number | 21104 | | 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:** Unflavored - **Item Form:** Tablet - **Primary Supplement Type:** Vitamin B12 ## Images ![Vitamin B-12 1000 mcg Prolonged Release Tablets, 110 Count - Image 1](https://m.media-amazon.com/images/I/61SOyYMP32L.jpg) ![Vitamin B-12 1000 mcg Prolonged Release Tablets, 110 Count - Image 2](https://m.media-amazon.com/images/I/61KfCVssYZL.jpg) ![Vitamin B-12 1000 mcg Prolonged Release Tablets, 110 Count - Image 3](https://m.media-amazon.com/images/I/71KEHwW0-wL.jpg) ![Vitamin B-12 1000 mcg Prolonged Release Tablets, 110 Count - Image 4](https://m.media-amazon.com/images/I/61jBiKRhGwL.jpg) ![Vitamin B-12 1000 mcg Prolonged Release Tablets, 110 Count - Image 5](https://m.media-amazon.com/images/I/71B8CtZJqYL.jpg) ## Available Options This product comes in different **Size, Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Value + *by on Reviewed in the United States 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. ### ⭐⭐⭐⭐⭐ I misunderstood.... *by on Reviewed in the United States May 7, 2020* I had purchased the 5000 mcg sublingual tablets and I loved the flavor and how they dissolved, but they were too potent for every day use. I prefer to take them daily so I don't lose track of when I took one, so I ordered the 1000 mcg version but I didn't realize that they were NOT sublinguals... I can take pills but I enjoyed the little fruity treat every morning...it reminded me of being a kid and taking my vitamin....now I'm back to being an old lady having to swallow a pill... but on a good note the 1000 mcg tablets do work well, and they were a great price and are easy to swallow...so I can't complain about the actual product...I just wish they had been sublingual like the 5000mcg ones... ### ⭐⭐⭐⭐⭐ Helped me *by on Reviewed in the United States June 12, 2026* Love them. They did the trick. My levels are back up. ## Frequently Bought Together - 21st Century B 12 1000 mcg Prolonged Release Tablets, 110 Count - 21st Century Slow Release Iron Tablets, 60 Count - 21st Century D 5000 IU Tablets, 110 Count --- ## 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.hr/products/11979895-vitamin-b-12-1000-mcg-prolonged-release-tablets-110-count](https://www.desertcart.hr/products/11979895-vitamin-b-12-1000-mcg-prolonged-release-tablets-110-count) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-09-27*