---
product_id: 31945663
title: "21st Century Niacin 500 mg Prolonged Release Tablets, 100 Count (27474)"
brand: "21st century"
price: "KD 3.80"
currency: KWD
in_stock: true
reviews_count: 12
category: "21st Century"
url: https://www.desertcart.com.kw/products/31945663-21st-century-niacin-500-mg-prolonged-release-tablets-100-count
store_origin: KW
region: Kuwait
---

# slow-release formula for steady absorption no added sugar, salt, yeast, preservatives, or artificial colors 500 mg prolonged release niacin 21st Century Niacin 500 mg Prolonged Release Tablets, 100 Count (27474)

**Brand:** 21st century
**Price:** KD 3.80
**Availability:** ✅ In Stock

## Summary

> 💥 Unlock steady energy & clean wellness with every tablet!

## Quick Answers

- **What is this?** 21st Century Niacin 500 mg Prolonged Release Tablets, 100 Count (27474) by 21st century
- **How much does it cost?** KD 3.80 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.kw](https://www.desertcart.com.kw/products/31945663-21st-century-niacin-500-mg-prolonged-release-tablets-100-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

- • **Gentle on Digestion:** Flush-free, easy-to-swallow tablets designed for comfort and consistent quality
- • **Clean & Pure Formula:** Free from sugar, salt, yeast, preservatives, and artificial additives—because your body deserves the best
- • **Sustained Energy Boost:** 500 mg niacin slowly releases to fuel your day without the crash
- • **Smart Supplement Choice:** Perfect for busy professionals seeking balanced nervous, digestive, and skin health support
- • **Trusted Quality Standards:** Produced under strict quality controls to ensure premium potency and safety

## Overview

21st Century Niacin 500 mg Prolonged Release Tablets deliver a slow-release, flush-free form of Vitamin B3 designed to support energy metabolism, nervous system, digestive health, and skin function. With no added sugars, salts, yeast, preservatives, or artificial colors, these allergen-conscious tablets offer a clean, high-quality supplement option trusted by thousands. Ideal for professionals seeking consistent, gentle supplementation without compromise.

## Description

Compare to active ingredient in Slo Niacin. Niacin (Vitamin B-3) plays a key role in converting food into energy. It also helps maintain health function of the nervous and digestive systems and the skin. No added sugar, salt, yeast, preservatives, artificial flavors or colors. 21st Century offers the highest quality ingredients produced to strict standards of quality for your good health. This statement has not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.Slo Niacin is a registered trademark of Upsher-Smith Laboratories, Maple Grove, MN 55369

Review: Good value that is easy to digest - Consistent quality and easily digested. Flush free and slow release formula is easy to swallow and meets Dr.’s requirements.
Review: Good - I can't swallow big capsules & I couldn't find anything but capsules in the stores where I live so I ordered these. I can cut them up to take. I do get some flushing & a little itch but not too bad. I don't mind as it shows me it's working. The price is right for what you get & quality seems to be there consistently. Will definitely buy again.

## Features

- Allergen information: mustard_free
- Product Note: Exposure to heat or sunlight may lead to melting/damage of product. Hence customers are expected to be available during the product delivery
- Compare to active ingredient in slo niacin
- No added sugar, salt, yeast, preservatives, artificial flavors or colors
- This product is not intended to diagnose, treat, cure or prevent any disease.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN  | B00HND5U3Y |
| Best Sellers Rank | #60,917 in Health & Household ( See Top 100 in Health & Household ) #109 in Vitamin B3 (Niacin) Supplements |
| Customer Reviews | 4.5 4.5 out of 5 stars (819) |
| Date First Available  | January 2, 2014 |
| Is Discontinued By Manufacturer  | No |
| Item model number  | 27474 |
| Manufacturer  | 21st Century |
| Product Dimensions  | 1.75 x 2.38 x 3.75 inches; 3.36 ounces |

## Product Details

- **Brand:** 21st Century
- **Diet Type:** Gluten Free
- **Flavor:** Unflavored
- **Item Form:** Tablet
- **Primary Supplement Type:** Vitamin B3

## Images

![21st Century Niacin 500 mg Prolonged Release Tablets, 100 Count (27474) - Image 1](https://m.media-amazon.com/images/I/617LlVeUQJL.jpg)
![21st Century Niacin 500 mg Prolonged Release Tablets, 100 Count (27474) - Image 2](https://m.media-amazon.com/images/I/61QeELoKDcL.jpg)
![21st Century Niacin 500 mg Prolonged Release Tablets, 100 Count (27474) - Image 3](https://m.media-amazon.com/images/I/61aFturOFNL.jpg)
![21st Century Niacin 500 mg Prolonged Release Tablets, 100 Count (27474) - Image 4](https://m.media-amazon.com/images/I/712iSiNqsAL.jpg)
![21st Century Niacin 500 mg Prolonged Release Tablets, 100 Count (27474) - Image 5](https://m.media-amazon.com/images/I/71A85+dBNsL.jpg)

## Questions & Answers

**Q: How big are the tablets?**
A: A bit smaller than a multivitamin and vitamin c tablets.

**Q: Your product contains two of the chemicals that are derived from the east palestine  train derailment: polyvinyl alcohol, polyethylene glycol.plastic?**
A: Yes it is flush free for me most of the time.

**Q: I have taken this up to 1500 with no effect at all.Any idea??**
A: You should not get a niacin flush taking the slow release version.

**Q: Is this niacinamide or nicotinic acid?**
A: Nicotinic acid, but, you will not get a flush from this product if, you consume with food. I hope this helps.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good value that is easy to digest
*by M***N on September 27, 2025*

Consistent quality and easily digested. Flush free and slow release formula is easy to swallow and meets Dr.’s requirements.

### ⭐⭐⭐⭐⭐ Good
*by A***R on March 23, 2024*

I can't swallow big capsules & I couldn't find anything but capsules in the stores where I live so I ordered these. I can cut them up to take. I do get some flushing & a little itch but not too bad. I don't mind as it shows me it's working. The price is right for what you get & quality seems to be there consistently. Will definitely buy again.

### ⭐⭐⭐⭐⭐ Great product
*by C***L on July 1, 2025*

In 3 months it lower my Triglycerides from 503 to 346 🤗 worth it

## Frequently Bought Together

- 21st Century Niacin 500 mg Prolonged Release Tablets, 100 Count (27474)
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*Product available on Desertcart Kuwait*
*Store origin: KW*
*Last updated: 2026-01-31*