--- product_id: 13471658 title: "21st Century Calcium 500mg + Vitamin D3 Tablets, Bone Health, 400 Count" brand: "21st century" price: "127.47 DT" currency: TND in_stock: true reviews_count: 9 category: "21st Century" url: https://www.desertcart.tn/products/13471658-21st-century-calcium-500mg-vitamin-d3-tablets-bone-health-400 store_origin: TN region: Tunisia --- # 500mg Calcium per tablet 400 tablets for long-term supply Vitamin D3 for optimal absorption 21st Century Calcium 500mg + Vitamin D3 Tablets, Bone Health, 400 Count **Brand:** 21st century **Price:** 127.47 DT **Availability:** ✅ In Stock ## Summary > 💪 Fortify your foundation—because strong bones never go out of style! ## Quick Answers - **What is this?** 21st Century Calcium 500mg + Vitamin D3 Tablets, Bone Health, 400 Count by 21st century - **How much does it cost?** 127.47 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/13471658-21st-century-calcium-500mg-vitamin-d3-tablets-bone-health-400) ## 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 - • **Absorption Amplified:** Vitamin D3 enhances calcium uptake for maximum benefit - • **Seamless Daily Routine:** Easy twice-daily dosing, gluten-free, no artificial additives - • **Power-Packed Bone Support:** 500mg calcium + vitamin D3 combo fuels stronger bones daily - • **Trusted Quality Assurance:** Made in FDA-registered US facility with 35+ years of expertise - • **Smart Value, Smarter Health:** Compare to Os-Cal and save without compromising quality ## Overview 21st Century Calcium 500mg + Vitamin D3 Tablets deliver a potent daily dose of calcium paired with vitamin D3 to support bone strength and density. With 400 gluten-free, unflavored tablets made in an FDA-registered US facility, this trusted supplement offers a cost-effective, easy-to-integrate solution for adults seeking long-term bone health support. ## Description 21st Century Calcium 500mg + Vitamin D3 Tablets, Bone Health, 400 Count Strong bones need calcium along with the vitamin D3 that helps your body absorb it, and 21st Century Calcium 500 + D3 delivers both in one tablet to help support bone strength and density.* Each tablet provides 500 mg of calcium from oyster shell plus vitamin D3, which is added to assist with calcium absorption.* It is an easy daily choice for men and women supporting their bone health, or anyone whose diet falls short on calcium and vitamin D. Adults take one tablet twice daily with a meal; tablets may be broken in half and can be taken with your multivitamin. Made with no added yeast or artificial flavors, and gluten free. Contains shellfish (oyster). With 400 tablets for months of coverage, made in the USA from domestic and globally sourced ingredients in an FDA-registered facility and quality-tested. *These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease. **This product is not manufactured or distributed by GlaxoSmithKline, owner of the registered trademark Os-Cal. Review: Good item . - Good value . Review: BEST CALCIUM BRAND I TRUST AND EXCELLENT QUALITY 👌 - CALCIUM 500 +D3 IT IS HELPING ME TROUGH MY MENOPAUSE, I FEEL BETTER!!! IT'S HELPING MY BONES OR EVERYTHING OVERALL. I REALLY, REALLY RECOMMEND IT!!! AND FOR THE PRICE AND THIS BRAND IS ONE OF THE BRANDS I TRUST THE MOST. ## Features - BONE HEALTH IN A SIMPLE DAILY DOSE: 500 mg of calcium paired with vitamin D3 to help support bone strength and density, with D3 added to aid calcium absorption.* - COMPARE VS. OS-CAL** CALCIUM +D3 AND SAVE: Compare the active ingredients to Os-Cal Calcium +D3. Get 500 mg of calcium with vitamin D3 at a smarter value. - CALCIUM AND D3, WORKING TOGETHER: Vitamin D3 helps your body absorb and use calcium, so the two work together to help support daily bone health.* - EASY TO WORK INTO YOUR ROUTINE: Take one tablet twice daily with meals; tablets can be broken in half and pair well with your multivitamin. Made with no added yeast or artificial flavors, and gluten free. - 400 TABLETS, TRUSTED FOR 35+ YEARS: A long-lasting supply, made in the USA from domestic and globally sourced ingredients in an FDA-registered facility and quality-tested. **This product is not manufactured or distributed by GlaxoSmithKline, owner of the registered trademark Os-Cal. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00H3KR9WC | | Age Range Description | Adult | | Allergen Information | Gluten Free, Shellfish | | Best Sellers Rank | #40,666 in Health & Household ( See Top 100 in Health & Household ) #227 in Calcium Mineral Supplements #2,387 in Sales & Deals | | Brand | 21st Century | | Brand Name | 21st Century | | Concentration | 500 Mg | | Customer Reviews | 4.7 out of 5 stars 1,827 Reviews | | Diet Type | Gluten Free | | Flavor | Unflavored | | Global Trade Identification Number | 00740985275238 | | Item Form | Tablet | | Item Highlight | Calcium 500 mg with Vitamin D3 for Bone Health Support, Compare VS. Os-Cal® Calcium +D3, Gluten Free, 400 Tablets | | Item Nype Name | Calcium Supplement | | Item Weight | 1.5 pounds | | Manufacturer | 21st Century HealthCare, Inc. | | Manufacturer Part Number | 27523 | | Material Type Free | Gluten Free, No Artificial Colors, No Artificial Flavors | | Model Number | 27523 | | Number of Items | 1 | | Primary Supplement Type | Calcium, Vitamin D3 | | Product Benefits | Bone Strength | | UPC | 740985275238 | | Unit Count | 400 Count | ## Product Details - **Brand:** 21st Century - **Flavor:** Unflavored - **Item Form:** Tablet - **Primary Supplement Type:** Calcium, Vitamin D3 - **Unit Count:** 400 Count ## Images ![21st Century Calcium 500mg + Vitamin D3 Tablets, Bone Health, 400 Count - Image 1](https://m.media-amazon.com/images/I/61KMu7YDrNL.jpg) ![21st Century Calcium 500mg + Vitamin D3 Tablets, Bone Health, 400 Count - Image 2](https://m.media-amazon.com/images/I/71tofsuSlvL.jpg) ![21st Century Calcium 500mg + Vitamin D3 Tablets, Bone Health, 400 Count - Image 3](https://m.media-amazon.com/images/I/815vmT8LFvL.jpg) ![21st Century Calcium 500mg + Vitamin D3 Tablets, Bone Health, 400 Count - Image 4](https://m.media-amazon.com/images/I/61U4lSiDYDL.jpg) ![21st Century Calcium 500mg + Vitamin D3 Tablets, Bone Health, 400 Count - Image 5](https://m.media-amazon.com/images/I/71QDPPJrbjL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Good item . *by R***R on September 17, 2026* Good value . ### ⭐⭐⭐⭐⭐ BEST CALCIUM BRAND I TRUST AND EXCELLENT QUALITY 👌 *by O***O on April 25, 2026* CALCIUM 500 +D3 IT IS HELPING ME TROUGH MY MENOPAUSE, I FEEL BETTER!!! IT'S HELPING MY BONES OR EVERYTHING OVERALL. I REALLY, REALLY RECOMMEND IT!!! AND FOR THE PRICE AND THIS BRAND IS ONE OF THE BRANDS I TRUST THE MOST. ### ⭐⭐⭐⭐⭐ strong bones *by A***R on May 12, 2026* excellent product, excellent price ## Frequently Bought Together - 21st Century Calcium 500 mg Plus D3 Tablets, 400 Count - Centrum Silver Women's Multivitamin for Women 50 Plus, Multivitamin/Multimineral Supplement with Vitamin D3, B Vitamins, Non-GMO Ingredients, Supports Memory and Cognition in Older Adults - 200 Ct - Nature's Bounty Fish Oil Omega 3 Supplements - Supports Heart Health, 1200 Mg Fish Oil, Omega-3, 200 Softgels (Pack of 1) --- ## 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.tn/products/13471658-21st-century-calcium-500mg-vitamin-d3-tablets-bone-health-400](https://www.desertcart.tn/products/13471658-21st-century-calcium-500mg-vitamin-d3-tablets-bone-health-400) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-10-12*