---
product_id: 251311045
title: "C-500 Mg Prolonged Release - 110 Tablet"
brand: "21st century"
price: "$U1168"
currency: UYU
in_stock: true
reviews_count: 13
category: "21st Century"
url: https://www.desertcart.uy/products/251311045-c-500-mg-prolonged-release-110-tablet
store_origin: UY
region: Uruguay
---

# Prolonged release for steady nutrient supply Free from sugar, gluten & artificial additives Powerful immune system support C-500 Mg Prolonged Release - 110 Tablet

**Brand:** 21st century
**Price:** $U1168
**Availability:** ✅ In Stock

## Summary

> 🛡️ Stay unstoppable with steady immune power!

## Quick Answers

- **What is this?** C-500 Mg Prolonged Release - 110 Tablet by 21st century
- **How much does it cost?** $U1168 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.uy](https://www.desertcart.uy/products/251311045-c-500-mg-prolonged-release-110-tablet)

## 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 Wellness:** No sugar, salt, yeast, preservatives, artificial flavors, colors, or gluten—just pure health
- • **Highly Rated & Popular:** 4.3-star rating with over 1,400 reviews—join the health-conscious community
- • **Trusted Quality from USA:** Manufactured under strict standards ensuring freshness and potency
- • **Sustained Vitamin C Boost:** Slow-release formula keeps your immune defense active all day
- • **Generous 110-Tablet Supply:** Long-lasting pack designed to keep you covered for months

## Overview

21st Century C-500 Mg Prolonged Release tablets deliver a steady supply of vitamin C to support your immune system throughout the day. This gluten-free, additive-free formula ensures purity and freshness, offering 110 tablets per pack. Trusted by thousands with a 4.3-star rating, it’s a reliable choice for adults seeking sustained antioxidant protection.

## Description

Product Description Vitamin C is an important antioxidant nutrient that helps neutralize free radicals and supports the immune system. Prolonged release vitamins slowly release nutrients into the body over an extended period of time. Set Contains: 110 Tablets

Review: Same as described - Good and cheap
Review: Absolutely worth it - Buying it 3rd time

## Features

- Immune System Support.
- Unconditionally ensured for purity, freshness and label potency.
- Free from added Sugar, Salt, Yeast, Preservatives, Artificial Flavours or Colours and Gluten.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00166U2UA |
| ASIN  | B00166U2UA |
| Age Range Description | Adult |
| Allergen Information | Gluten Free |
| Best Sellers Rank | #578 in Health ( See Top 100 in Health ) #108 in Vitamin C Supplements |
| Brand | 21st Century |
| Country of origin | USA |
| Country of origin  | USA |
| Customer Reviews | 4.3 4.3 out of 5 stars (1,458) |
| Customer reviews | 4.3 4.3 out of 5 stars (1,458) |
| Date First Available | 8 August 2012 |
| Format | Tablet |
| Is Discontinued By Manufacturer  | No |
| Item model number  | 21190 |
| Manufacturer  | 21st Century |
| Product Dimensions  | 6.03 x 4.45 x 9.53 cm; 117.75 g |
| Product Name | HEALTH_PERSONAL_CARE |
| Serving Recommendation | 1 tablet |
| Units | 110 Count |
| Weight | 110 Pounds |

## Product Details

- **Brand:** 21st Century
- **Diet type:** Gluten Free
- **Flavour:** Unflavored
- **Item form:** Tablet
- **Primary supplement type:** Vitamin C

## Images

![C-500 Mg Prolonged Release - 110 Tablet - Image 1](https://m.media-amazon.com/images/I/61vgjRBMEeL.jpg)

## 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

### ⭐⭐⭐⭐⭐ Same as described
*by V***U on 8 July 2025*

Good and cheap

### ⭐⭐⭐⭐⭐ Absolutely worth it
*by Z***N on 5 January 2026*

Buying it 3rd time

### ⭐⭐⭐⭐ Good
*by S***I on 18 November 2025*

Good

## 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)

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**Shop now:** [https://www.desertcart.uy/products/251311045-c-500-mg-prolonged-release-110-tablet](https://www.desertcart.uy/products/251311045-c-500-mg-prolonged-release-110-tablet)

---

*Product available on Desertcart Uruguay*
*Store origin: UY*
*Last updated: 2026-02-10*