--- product_id: 16943403 title: "21st Century C 500 mg Prolonged Release Tablets, 110 Count (21190)" brand: "21st century" price: "68 zł" currency: PLN in_stock: true reviews_count: 13 category: "21st Century" url: https://www.desertcart.pl/products/16943403-21st-century-c-500-mg-prolonged-release-tablets-110-count store_origin: PL region: Poland --- # Prolonged release for steady absorption No artificial additives or allergens 500 mg potent Vitamin C dose 21st Century C 500 mg Prolonged Release Tablets, 110 Count (21190) **Brand:** 21st century **Price:** 68 zł **Availability:** ✅ In Stock ## Summary > 💥 Unlock all-day immune power with every tablet! ## Quick Answers - **What is this?** 21st Century C 500 mg Prolonged Release Tablets, 110 Count (21190) by 21st century - **How much does it cost?** 68 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/16943403-21st-century-c-500-mg-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 - • **Clean & Pure:** Free from sugar, salt, yeast, preservatives, artificial flavors, colors, and gluten—because your health deserves the best. - • **Steady Immunity Boost:** Slow-release formula ensures your body absorbs Vitamin C throughout the day, maximizing antioxidant protection. - • **High Potency, Low Waste:** 500 mg dosage per tablet delivers powerful antioxidant support without overwhelming your system or your wallet. - • **Millennial-Approved Value:** 110 tablets per bottle offer long-lasting immune support at a competitive price—because smart health is smart spending. - • **Trusted Quality Assurance:** Guaranteed purity, freshness, and label potency for consistent, reliable supplementation. ## Overview 21st Century C 500 mg Prolonged Release Tablets provide a sustained release of Vitamin C to support antioxidant defense and immune health. With 110 gluten-free, additive-free tablets per bottle, this supplement offers a clean, potent, and cost-effective way to maintain wellness throughout your busy day. ## Description 21st Century's prolonged release Vitamin C-500 provides long-term vitamin supplementation by slowly releasing nutrients to the body over an extended period of time. Vitamin C is an important antioxidant nutrient that helps neutralize free radicals and support a healthy immune system. Review: 21st Century prolonged release Vitaminas C - Recommended by Pharmacist due to excellent quality product. Easy to swallow, good value for price and larger bottles available on desertcart than in Pharmacy. Review: Quality product, good price point. - Extended release Vitamin C is the only way to go. Your body can only absorb so much at a time, and I don't need to waste money. Consistently high quality at a competitive price. I will buy again! ## Features - Helps neutralize free radicals and support a healthy immune system. - No added sugar, salt, yeast, preservatives, artificial flavors or colors. - Unconditionally guaranteed for purity, freshness and label potency. - 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. - Allergen information: banana_free ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00166U2UA | | Age Range Description | Adult | | Allergen Information | Gluten Free | | Best Sellers Rank | #68,774 in Health & Household ( See Top 100 in Health & Household ) #393 in Vitamin C Supplements | | Brand | 21st Century | | Brand Name | 21st Century | | Color | No Color | | Container Type | Bottle | | Customer Reviews | 4.6 out of 5 stars 385 Reviews | | Diet Type | Gluten Free | | Dosage Form | 500 | | Flavor | Unflavored | | Global Trade Identification Number | 00740985211908 | | Item Dimensions | 2.38 x 1.75 x 3.75 inches | | Item Form | Tablet | | Item Weight | 4.15 ounces | | Manufacturer | 21st Century | | Manufacturer Part Number | 21190 | | Material Type Free | Gluten Free | | Model Name | ury C 500 mg Prolonged Release Tablets, 110 Count (21190) | | Model Number | 21190 | | Number of Items | 1 | | Primary Supplement Type | Vitamin C | | Product Benefits | Immune Support | | Specific Uses For Product | Antioxidant, Immunity | | UPC | 740985211908 | | Unit Count | 110 Count | ## Product Details - **Brand:** 21st Century Healthcare, Inc - **Item Form:** Tablet - **Primary Supplement Type:** Vitamin C - **Diet Type:** Gluten Free - **Flavor:** Unflavored ## Images ![21st Century C 500 mg Prolonged Release Tablets, 110 Count (21190) - Image 1](https://m.media-amazon.com/images/I/61vgjRBMEeL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: Does it contain soy** A: I checked the label and it doesn't. list 'soy' as such. **Q: Are these coated?** A: I don't take them anymore but I think they are a smooth tablet. **Q: I wanted the chewable tablets like it says on the description but I got the prolong lease like in the picture. Do you have the chewable ?** A: I have chewables **Q: Does anyone know the sugar content of these chewables? This is a factor for diabetics** A: the sugar content is not written on the bottle. I think you will have to go to the manufacturer for this information. ## Customer Reviews ### ⭐⭐⭐⭐⭐ 21st Century prolonged release Vitaminas C *by A***O on September 27, 2025* Recommended by Pharmacist due to excellent quality product. Easy to swallow, good value for price and larger bottles available on Amazon than in Pharmacy. ### ⭐⭐⭐⭐⭐ Quality product, good price point. *by N***. on November 4, 2025* Extended release Vitamin C is the only way to go. Your body can only absorb so much at a time, and I don't need to waste money. Consistently high quality at a competitive price. I will buy again! ### ⭐⭐⭐⭐⭐ Vitamin C Time Release 500 mg *by A***N on October 16, 2023* Both my husband and I like this new Vitamin C Release like this product. It helps our vitality. ## Frequently Bought Together - 21st Century C 500 mg Prolonged Release Tablets, 110 Count (21190) - 21st Century Slow Release Iron Tablets, 60 Count - 21st Century B 50 Complex Prolonged Release Tablets, 60 Count (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.pl/products/16943403-21st-century-c-500-mg-prolonged-release-tablets-110-count](https://www.desertcart.pl/products/16943403-21st-century-c-500-mg-prolonged-release-tablets-110-count) --- *Product available on Desertcart Poland* *Store origin: PL* *Last updated: 2026-06-04*