--- product_id: 11979895 title: "SMART MONKEY TECHNOLOGIES 21st Century B12 1000 mcg Prolonged Release Tablets, Cyanocobalamin for Energy and Nerve Support, Gluten Free, 110 Count for Adults" brand: "21st century" price: "60 zł" currency: PLN in_stock: true reviews_count: 13 category: "21st Century" url: https://www.desertcart.pl/products/11979895-smart-monkey-technologies-21st-century-b12-1000-mcg-prolonged-release store_origin: PL region: Poland --- # Prolonged release formula Gluten-free & vegan-friendly 1000 mcg B12 per tablet SMART MONKEY TECHNOLOGIES 21st Century B12 1000 mcg Prolonged Release Tablets, Cyanocobalamin for Energy and Nerve Support, Gluten Free, 110 Count for Adults **Brand:** 21st century **Price:** 60 zł **Availability:** ✅ In Stock ## Summary > ⚡ Power your day with B12 brilliance — don’t get left behind! ## Quick Answers - **What is this?** SMART MONKEY TECHNOLOGIES 21st Century B12 1000 mcg Prolonged Release Tablets, Cyanocobalamin for Energy and Nerve Support, Gluten Free, 110 Count for Adults by 21st century - **How much does it cost?** 60 zł with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/11979895-smart-monkey-technologies-21st-century-b12-1000-mcg-prolonged-release) ## 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 - • **Trusted & Proven:** Top-rated with 4.7 stars from nearly 6,000 reviews—join the wellness movement. - • **Clean & Conscious:** Gluten-free, non-GMO, and vegan—perfect for mindful lifestyles. - • **High Potency Dose:** 1000 mcg per tablet delivers a powerful, effective B12 punch. - • **Compact & Convenient:** Small, unflavored tablets dissolve quickly for easy daily use on the go. - • **Sustained Energy Boost:** Prolonged release ensures steady B12 absorption for all-day vitality. ## Overview 21st Century B12 1000 mcg Prolonged Release Tablets provide a potent, steady dose of vitamin B12 to support healthy blood cells and tissue maintenance. With a gluten-free, vegan-friendly formula and top-tier customer ratings, these tablets offer an effective, convenient way to boost energy and overall wellness. ## 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. 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 - 10% Free - Promotes tissue growth and maintenance and is essential for red blood cell formation - Easy-to-swallow smaller tablet - Prolonged release vitamins slowly release nutrients into the body over an extended period of time - Gluten free - During the summer months products may arrive warm but desertcart stores and ships products in accordance with manufacturers' recommendations, when provided. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0007PQARK | | ASIN | B0007PQARK | | Age Range Description | Adult | | Allergen Information | Gluten Free | | Best Sellers Rank | #15,871 in Health & Household ( See Top 100 in Health & Household ) #91 in Vitamin B12 Supplements #1,434 in Sales & Deals | | Brand Name | 21st Century | | Color | No Color | | Customer Reviews | 4.7 4.7 out of 5 stars (5,977) | | Date First Available | October 2, 2002 | | Diet Type | Gluten Free | | Dosage Form | 1000 | | Flavor | Unflavored | | Global Trade Identification Number | 00740985211045 | | Is Discontinued By Manufacturer | No | | Item Dimensions | 2.38 x 1.75 x 3.75 inches | | Item Form | Tablet | | Item Weight | 55 Grams | | Item model number | 21104 | | Manufacturer | 21st Century | | Manufacturer | 21st Century | | Manufacturer Part Number | 21104 | | Model Name | See packaging | | Model Number | 21104 | | Number of Items | 1 | | Primary Supplement Type | Vitamin B2 | | Product Benefits | Antioxidant | | Product Dimensions | 2.38 x 1.75 x 3.75 inches; 1.94 ounces | | Specific Uses For Product | Heart | | UPC | 740985211045 | | Unit Count | 110 Count | ## Product Details - **Brand:** 21st Century - **Diet Type:** Gluten Free - **Flavor:** Unflavored - **Item Form:** Tablet - **Primary Supplement Type:** Vitamin B2 ## Images ![SMART MONKEY TECHNOLOGIES 21st Century B12 1000 mcg Prolonged Release Tablets, Cyanocobalamin for Energy and Nerve Support, Gluten Free, 110 Count for Adults - Image 1](https://m.media-amazon.com/images/I/71bJQVuT68L.jpg) ## Available Options This product comes in different **Size, Style** options. ## 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 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.pl/products/11979895-smart-monkey-technologies-21st-century-b12-1000-mcg-prolonged-release](https://www.desertcart.pl/products/11979895-smart-monkey-technologies-21st-century-b12-1000-mcg-prolonged-release) --- *Product available on Desertcart Poland* *Store origin: PL* *Last updated: 2026-05-29*