---
product_id: 642991421
title: "NOW Supplements, Niacin (Vitamin B-3) 500 mg, Essential B-Group Vitamin*, Nutritional Health, 100 Capsules (Pack of 3)"
brand: "now foods"
price: "฿2490"
currency: THB
in_stock: true
reviews_count: 13
category: "Now Foods"
url: https://www.desertcart.co.th/products/642991421-now-supplements-niacin-vitamin-b-3-500-mg-essential-b
store_origin: TH
region: Thailand
---

# GMP A-rated third-party certified Free from soy, gluten, dairy, egg, nuts 500 mg high potency dose NOW Supplements, Niacin (Vitamin B-3) 500 mg, Essential B-Group Vitamin*, Nutritional Health, 100 Capsules (Pack of 3)

**Brand:** now foods
**Price:** ฿2490
**Availability:** ✅ In Stock

## Summary

> 💥 Elevate your health game with NOW Niacin — the essential B-3 boost you can’t afford to miss!

## Quick Answers

- **What is this?** NOW Supplements, Niacin (Vitamin B-3) 500 mg, Essential B-Group Vitamin*, Nutritional Health, 100 Capsules (Pack of 3) by now foods
- **How much does it cost?** ฿2490 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/642991421-now-supplements-niacin-vitamin-b-3-500-mg-essential-b)

## Best For

- now foods enthusiasts

## Why This Product

- Trusted now foods brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Allergen-Free Formula:** Enjoy peace of mind with a soy, gluten, dairy, egg, and nut-free supplement crafted for sensitive lifestyles.
- • **Power-Packed 500 mg Dose:** Maximize your daily B-3 intake with a potent 500 mg capsule designed for optimal nutritional support.
- • **Trusted Legacy Since 1968:** Backed by decades of family-owned expertise and USA-based manufacturing for consistent quality.
- • **Certified Purity & Quality:** Trust in GMP A-rated, third-party tested supplements ensuring unmatched safety and potency every time.
- • **Daily Wellness Made Simple:** Just one capsule a day with meals supports your cardiovascular health and energy metabolism effortlessly.

## Overview

NOW Foods Niacin (Vitamin B-3) delivers a potent 500 mg dose of this essential B-group vitamin in a clean, allergen-free capsule. Manufactured in the USA by a trusted family-owned company since 1968, it meets rigorous GMP A-rated third-party certifications for purity and potency. Designed for daily use to support cardiovascular health and energy metabolism, this supplement is a must-have for health-conscious professionals seeking reliable nutritional support.

## Description

From the manufacturer

Review: I know they work! - Some days I take these and I'm out of commission for at least 10 mins, due to all the itching n scratching. Some days it barely itches when taking. I'm going to assume that those days of intense itching is the days when I need it most. I usually feel be/er on days that I take them. But I do not take them on a regular basis. Also NOW brand are ny most dependable brand when purchasing supplements.
Review: Reliable and cheaper without sacrificing quality. - NOW makes reliable supplements and I am an avid flusher with Niacin and I have been using NOW brand regularly for 15 years. They are reasonably priced and usually cheaper and more reliable than most competitors. There are some really good companies in the nutritional supplementation industry.

## Features

- The information below is per-pack only
- NIACIN/VITAMIN B-3: Niacin (Vitamin B-3) is an essential B-group vitamin necessary for good health
- NUTRITIONAL HEALTH: Take 1 capsule daily as needed, with a meal. This high potency capsule should be taken under doctor's supervision
- CERTIFICATIONS/CLASSIFICATIONS: Soy Free, Made without Gluten, Dairy Free, Egg Free, Nut Free
- GMP Quality Assured: A-rated, third-party certification means that every aspect of the NOW manufacturing process has been examined. Our in-house laboratories are ISO/IEC accredited for laboratory testing including for stability, potency and product formulation.
- Founded in 1968 by Elwood Richard, NOW is one of the largest independent, family- and employee-owned manufacturers of natural products

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CJ2VGMFW |
| Age Range Description | Adult |
| Allergen Information | Allergen-Free |
| Best Sellers Rank | #51,602 in Health & Household ( See Top 100 in Health & Household ) #85 in Vitamin B3 (Niacin) Supplements #2,826 in Sales & Deals |
| Brand | NOW Foods |
| Brand Name | NOW Foods |
| Color | Off White |
| Container Type | Botella |
| Customer Reviews | 4.1 out of 5 stars 1,643 Reviews |
| Diet Type | Kosher, Vegan, Vegetarian |
| Dosage Form | Capsule |
| Flavor | Unflavored |
| Item Dimensions | 2.25 x 2.25 x 4.38 inches |
| Item Form | Capsule |
| Item Weight | 0.6 Pounds |
| Manufacturer | NOW Sports - Nutrition and Wellness |
| Manufacturer Part Number | 0481 |
| Model Name | Niacin (Vitamin B-3) 500 mg, Essential B-Group Vitamin*, Nutritional Health, 100 Capsules |
| Model Number | 0481 |
| Number of Items | 3 |
| Primary Supplement Type | Vitamin B3 |
| Product Benefits | Energy Management |
| Unit Count | 300 Count |

## Product Details

- **Brand:** NOW Foods
- **Diet Type:** Kosher, Vegan, Vegetarian
- **Flavor:** Unflavored
- **Item Form:** Capsule
- **Primary Supplement Type:** Vitamin B3

## Images

![NOW Supplements, Niacin (Vitamin B-3) 500 mg, Essential B-Group Vitamin*, Nutritional Health, 100 Capsules (Pack of 3) - Image 1](https://m.media-amazon.com/images/I/71x8siy0CmL.jpg)
![NOW Supplements, Niacin (Vitamin B-3) 500 mg, Essential B-Group Vitamin*, Nutritional Health, 100 Capsules (Pack of 3) - Image 2](https://m.media-amazon.com/images/I/717MiNLwkmL.jpg)
![NOW Supplements, Niacin (Vitamin B-3) 500 mg, Essential B-Group Vitamin*, Nutritional Health, 100 Capsules (Pack of 3) - Image 3](https://m.media-amazon.com/images/I/719+bfD5WyL.jpg)
![NOW Supplements, Niacin (Vitamin B-3) 500 mg, Essential B-Group Vitamin*, Nutritional Health, 100 Capsules (Pack of 3) - Image 4](https://m.media-amazon.com/images/I/51-iFqSzR-L.jpg)
![NOW Supplements, Niacin (Vitamin B-3) 500 mg, Essential B-Group Vitamin*, Nutritional Health, 100 Capsules (Pack of 3) - Image 5](https://m.media-amazon.com/images/I/61TJd1pszhL.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ I know they work!
*by T***. on February 20, 2026*

Some days I take these and I'm out of commission for at least 10 mins, due to all the itching n scratching. Some days it barely itches when taking. I'm going to assume that those days of intense itching is the days when I need it most. I usually feel be/er on days that I take them. But I do not take them on a regular basis. Also NOW brand are ny most dependable brand when purchasing supplements.

### ⭐⭐⭐⭐⭐ Reliable and cheaper without sacrificing quality.
*by C***G on February 24, 2026*

NOW makes reliable supplements and I am an avid flusher with Niacin and I have been using NOW brand regularly for 15 years. They are reasonably priced and usually cheaper and more reliable than most competitors. There are some really good companies in the nutritional supplementation industry.

### ⭐⭐⭐⭐⭐ Great for Restless Leg Syndrome
*by N***R on May 27, 2026*

I have always had problems with Restless leg syndrome throughout my life. I started taking this daily for something different and noticed that when I lay down at night, no more RLS. I researched this and it says there are studies that it helps with circulation and with RLS. I wish I would have known that decades ago. Works great, eat with food or better yet, take it a couple of hours before bedtime. He's, you will get the flush from this, but it gets better the longer you take it.

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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-06-06*