---
product_id: 16943403
title: "C 500 mg Prolonged Release Tablets, 110 Count (21190)"
brand: "21st century"
price: "2186 som"
currency: KGS
in_stock: true
reviews_count: 8
category: "21st Century"
url: https://www.desertcart.kg/products/16943403-c-500-mg-prolonged-release-tablets-110-count-21190
store_origin: KG
region: Kyrgyzstan
---

# 500 mg prolonged release for steady absorption No added sugar, salt, yeast, preservatives, or artificial colors Powerful antioxidant immune support C 500 mg Prolonged Release Tablets, 110 Count (21190)

**Brand:** 21st century
**Price:** 2186 som
**Availability:** ✅ In Stock

## Summary

> 🛡️ Stay strong all day with 21st Century’s slow-release Vitamin C!

## Quick Answers

- **What is this?** C 500 mg Prolonged Release Tablets, 110 Count (21190) by 21st century
- **How much does it cost?** 2186 som with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kg](https://www.desertcart.kg/products/16943403-c-500-mg-prolonged-release-tablets-110-count-21190)

## 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

- • **Immune System Armor:** Neutralizes free radicals to keep your immune defenses strong and ready.
- • **Gluten & Banana Free:** Safe for sensitive diets, making wellness accessible to more lifestyles.
- • **Clean & Pure Wellness:** Free from sugar, salt, yeast, preservatives, and artificial additives—because your health deserves the best.
- • **Sustained Vitamin C Power:** Slow-release formula ensures your body absorbs every milligram throughout the day.
- • **Trusted Quality Guarantee:** Purity, freshness, and potency backed by an unconditional guarantee—no compromises.

## Overview

21st Century C 500 mg Prolonged Release Tablets deliver a steady dose of vitamin C throughout the day, supporting antioxidant defense and immune health. With 110 tablets per bottle, this gluten- and banana-free supplement contains no added sugars, salts, yeast, preservatives, or artificial colors, ensuring a clean, high-quality product trusted by professionals and recommended by pharmacists.

## 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: 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!
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.

## 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 | #69,461 in Health & Household ( See Top 100 in Health & Household ) #443 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 360 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 |
| Material Type Free | Gluten Free |
| Model Name | ury C 500 mg Prolonged Release Tablets, 110 Count (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

![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

### ⭐⭐⭐⭐⭐ 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!

### ⭐⭐⭐⭐⭐ 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.

### ⭐⭐⭐⭐⭐ good product
*by J***3 on July 19, 2025*

no problem some are too acidy not theses

## 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.kg/products/16943403-c-500-mg-prolonged-release-tablets-110-count-21190](https://www.desertcart.kg/products/16943403-c-500-mg-prolonged-release-tablets-110-count-21190)

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*Product available on Desertcart Kyrgyzstan*
*Store origin: KG*
*Last updated: 2026-02-27*