---
product_id: 586229
title: "Life Extension Vitamin B3 Niacin, Heart Health, Cholesterol & Energy Support, Gluten-Free, Non-GMO, 100 Capsules"
brand: "life extension"
price: "1795 kr"
currency: ISK
in_stock: true
reviews_count: 5
category: "Life Extension"
url: https://www.desertcart.is/products/586229-life-extension-vitamin-b3-niacin-heart-health-cholesterol-and-energy
store_origin: IS
region: Iceland
---

# Boosts cellular energy production 100% Non-GMO & gluten-free purity Supports heart health & cholesterol Life Extension Vitamin B3 Niacin, Heart Health, Cholesterol & Energy Support, Gluten-Free, Non-GMO, 100 Capsules

**Brand:** life extension
**Price:** 1795 kr
**Availability:** ✅ In Stock

## Summary

> ⚡ Ignite your heart and energy—because your health deserves the spotlight!

## Quick Answers

- **What is this?** Life Extension Vitamin B3 Niacin, Heart Health, Cholesterol & Energy Support, Gluten-Free, Non-GMO, 100 Capsules by life extension
- **How much does it cost?** 1795 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/586229-life-extension-vitamin-b3-niacin-heart-health-cholesterol-and-energy)

## Best For

- life extension enthusiasts

## Why This Product

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

## Key Features

- • **Metabolism on overdrive:** Niacin fuels your body's fat, carb, and glucose metabolism to keep energy flowing all day.
- • **Pure, clean, and trusted:** Crafted in the USA with non-GMO, gluten-free ingredients and verified quality standards.
- • **Feel the flush, own the power:** Experience the signature niacin flush—a sign your body is activating its natural energy pathways.
- • **Heart-smart cholesterol support:** Clinically shown to maintain healthy cholesterol levels for lasting cardiovascular wellness.
- • **100-day supply for consistent vitality:** A full 100-capsule bottle ensures you never miss a day of your wellness routine.

## Overview

Life Extension Vitamin B3 Niacin delivers a potent 100-capsule supply of non-GMO, gluten-free niacin designed to support healthy cholesterol levels, boost metabolism, and enhance cellular energy production. Manufactured in the USA with premium ingredients, this formula is backed by scientific research and trusted by thousands seeking proactive heart and energy health.

## Description

Vitamin B3 Niacin is a customer-favorite formula for supporting already healthy cholesterol levels. In addition, vitamin B3 is clinically studied to promote the healthy metabolism of glucose, fat and alcohol. Vitamin B3 Niacin contains 100 gluten-free capsules, enough for a 100-day supply. This formula is made with 100% non-GMO ingredients.

Review: great product !!!! - Okay I, like a lot of people discovered niacin watching some of those crazy food documentaries you can find on netflix. I watched "food matters" and there was a lot of talk about niacin. So I looked around and bought this to try out. Now i did a lot if research first and I have to comment on all the negative reviews on this product. most people thought they were having an allergic and they broke out in a red rash or "flush" that felt like pins and needles. (1) a flush is normal with high niacin doses and for some the desired effect. (2) you are not allergic to niacin you simply did not understand what was happening and it is not fair to rate this product with one star because you failed to do your homework. (3)I read a review or 2 that stated they were upset because they got no flush. before I took any niacin I actually read an entire book on... you guessed it, "niacin". It was called "the truth about niacin" which i also got on desertcart. After reading it I learned that the less flush you get the more niacin you need. So If you are taking 3000 mg and get nothing than you should prob continue to take it and consider uping the dose. granted i'm no doctor and I have absolutely zero creditably in the medical field and this statement is based solely on the fact, I read a lot and research what ever i'm doing which in this case is taking niacin daily. On to my experience. the first time I took the niacin it was slightly uncomfortable but I was ready for the reaction and I just sat it out. It lasted about 20 minutes then it was gone. After a week the flush was greatly reduced and actually became very pleasant. I also noticed I was in a much better mood, more carefree and had way more energy. After 2 weeks the flush was gone and I had to stop taking it for 3-4 days to get the minimal flush back which for me is the best part. I'm not sure if anyone else experienced this but during my reduced flush all my muscles (I work out)became very sensitive to being massaged. I don't mean this in a weird way. I mean it literally. During my flush my wife would massage my arms legs back chest and it was incredibly relaxing. granted i can only talk my wife into the massage once in a while. I also noticed that while taking this cold symptoms were all most non existent. I have younger kids who bring home every cold known to man and a few times last year everyone in my house was sick and congested except for me. I had only minor symptoms compared to everyone else. I know it could be coincidence but I went a step further and tested the theory. the next time I got sick I stopped taking niacin and within a day I became congested and nasty. So I started taking the niacin again and poof symptoms gone it was like taking dayquil for your symptoms. When my wife saw this she began taking niacin as well. I would love to give it to my kids but they are to young and would not understand or like the flush at all.. So that's my story and im sticking to it.
Review: The heat of a thousand suns... Awesome. - Whew... the flush! If you are unprepared for the flush, read up about it FIRST or it will be quite disconcerting. The first time I took this product, I forgot completely that I added it to my morning vitamin mix and then I skipped a few days because I forgot. So Monday morning, I am at work and I take my vitamins with my morning tea, and all of a sudden I start feeling WEIRD... VERY weird. It starts with prickling in your nostrils, that spreads to your cheeks, then ears, which get very hot, then down the neck through your torso and out to your fingers and toes. It is like standing inside the sun... OMG. So I am looking at my secretary who tells me I look a little odd, like I am "pink". Heat is rolling off me in waves I cannot believe she can't feel it from 10 feet away. I AM the sun... My socks are clearly melting around my feet. I contemplate whether I should be worried as this is really very strange, then I start to process the sensations, and consider whether I am having a heart attack ... probably not, pulse is fine, or a stroke... probably not, as I am cogent, just HOT. I wrack my brain thinking I am having an allergic reaction but I haven't eaten anything yet today. So then I remember... OH... The Niacin. I read the reviews, I remembered the "flush". Well, that term does not accurately describe this sensation. It subsides after about 25-30 minutes but lessened some after 15 or so. Whew. That was my fault. So after thinking about it, that wasn't so bad, just different. You can feel that niacin working, coursing through your body. Oh, don't forget the distinctly metallic taste that floods your mouth while this is happening. Now, after a couple of weeks, it seems the flush is diminishing a little but I have decided that I kind of like it. So just be prepared when you try it for the first time if you are not accustomed to this sensation. The product itself is great, I would purchase again.

## Features

- Helps maintain already-healthy cholesterol – Healthy cholesterol levels are an important part of overall heart health. Niacin helps maintain cholesterol levels already within a normal range.
- Supports a healthy metabolism – B vitamins are vital to healthy metabolism. Your body uses niacin to utilize fats and carbohydrates and to metabolize glucose and alcohol.
- Promotes cellular energy production – Niacin is one of several vitamin B coenzymes that is crucial to the metabolic pathways that your body uses to generate cellular energy.
- Ingredients matter – We use the finest raw ingredients with the quality and purity you deserve. The majority of our products are non-GMO, gluten-free and manufactured in the USA—and a Certificate of Analysis is available for every one.
- Live your healthiest life – We believe the answers to a healthier life are in reach, and that scientific research is the key to getting there. That’s why so many of our formulas feature specific ingredients and amounts based on scientific studies.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN  | B000PBX32G |
| Best Sellers Rank | #37,052 in Health & Household ( See Top 100 in Health & Household ) #58 in Vitamin B3 (Niacin) Supplements #2,429 in Sales & Deals |
| Customer Reviews | 3.8 3.8 out of 5 stars (2,108) |
| Date First Available  | April 11, 2007 |
| Is Discontinued By Manufacturer  | Yes |
| Item model number  | 00372 |
| Manufacturer  | Life Extenison |
| Product Dimensions  | 2 x 2 x 3.75 inches; 3.04 ounces |

## Product Details

- **Brand:** Life Extension
- **Diet Type:** Gluten Free
- **Flavor:** Unflavored
- **Item Form:** Capsule
- **Primary Supplement Type:** Vitamin B3

## Images

![Life Extension Vitamin B3 Niacin, Heart Health, Cholesterol & Energy Support, Gluten-Free, Non-GMO, 100 Capsules - Image 1](https://m.media-amazon.com/images/I/71SIClcOG-L.jpg)

## Available Options

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

## Questions & Answers

**Q: What is vitamin B3 (niacin) good for?**
A: Vitamin B3 (niacin) has been clinically studied to support your health in several ways: it promotes already-healthy cholesterol levels, healthy metabolism of glucose, fat and alcohol and supports cellular energy.

**Q: How does vitamin B3 (niacin) support already-healthy cholesterol levels?**
A: Vitamin B3’s beneficial effects on blood lipids are what makes it so effective at supporting already-healthy cholesterol levels, an important part of maintaining overall heart health.

**Q: How much vitamin B3 do you need a day?**
A: The RDA for vitamin B3 is 16 mg for men and 14 mg for women per day. However, you can take niacin at higher doses. 500 mg of niacin per day can support your healthy cholesterol levels.

**Q: Is it okay to take niacin every day?**
A: While you should always follow the instructions on any supplement label to help you guide dosing, it is generally considered okay to take niacin every day. Any concerns about daily use, be sure to discuss them with your primary care provider.

**Q: Which foods are rich in vitamin B3?**
A: A major source of niacin comes from animal-based sources, including poultry like turkey and chicken as well as fish and beef. Plant-based sources like nuts, seeds, legumes and soy are also rich in vitamin B3.

## Customer Reviews

### ⭐⭐⭐⭐⭐ great product !!!!
*by X***X on February 27, 2013*

Okay I, like a lot of people discovered niacin watching some of those crazy food documentaries you can find on netflix. I watched "food matters" and there was a lot of talk about niacin. So I looked around and bought this to try out. Now i did a lot if research first and I have to comment on all the negative reviews on this product. most people thought they were having an allergic and they broke out in a red rash or "flush" that felt like pins and needles. (1) a flush is normal with high niacin doses and for some the desired effect. (2) you are not allergic to niacin you simply did not understand what was happening and it is not fair to rate this product with one star because you failed to do your homework. (3)I read a review or 2 that stated they were upset because they got no flush. before I took any niacin I actually read an entire book on... you guessed it, "niacin". It was called "the truth about niacin" which i also got on amazon. After reading it I learned that the less flush you get the more niacin you need. So If you are taking 3000 mg and get nothing than you should prob continue to take it and consider uping the dose. granted i'm no doctor and I have absolutely zero creditably in the medical field and this statement is based solely on the fact, I read a lot and research what ever i'm doing which in this case is taking niacin daily. On to my experience. the first time I took the niacin it was slightly uncomfortable but I was ready for the reaction and I just sat it out. It lasted about 20 minutes then it was gone. After a week the flush was greatly reduced and actually became very pleasant. I also noticed I was in a much better mood, more carefree and had way more energy. After 2 weeks the flush was gone and I had to stop taking it for 3-4 days to get the minimal flush back which for me is the best part. I'm not sure if anyone else experienced this but during my reduced flush all my muscles (I work out)became very sensitive to being massaged. I don't mean this in a weird way. I mean it literally. During my flush my wife would massage my arms legs back chest and it was incredibly relaxing. granted i can only talk my wife into the massage once in a while. I also noticed that while taking this cold symptoms were all most non existent. I have younger kids who bring home every cold known to man and a few times last year everyone in my house was sick and congested except for me. I had only minor symptoms compared to everyone else. I know it could be coincidence but I went a step further and tested the theory. the next time I got sick I stopped taking niacin and within a day I became congested and nasty. So I started taking the niacin again and poof symptoms gone it was like taking dayquil for your symptoms. When my wife saw this she began taking niacin as well. I would love to give it to my kids but they are to young and would not understand or like the flush at all.. So that's my story and im sticking to it.

### ⭐⭐⭐⭐⭐ The heat of a thousand suns... Awesome.
*by S***I on January 6, 2015*

Whew... the flush! If you are unprepared for the flush, read up about it FIRST or it will be quite disconcerting. The first time I took this product, I forgot completely that I added it to my morning vitamin mix and then I skipped a few days because I forgot. So Monday morning, I am at work and I take my vitamins with my morning tea, and all of a sudden I start feeling WEIRD... VERY weird. It starts with prickling in your nostrils, that spreads to your cheeks, then ears, which get very hot, then down the neck through your torso and out to your fingers and toes. It is like standing inside the sun... OMG. So I am looking at my secretary who tells me I look a little odd, like I am "pink". Heat is rolling off me in waves I cannot believe she can't feel it from 10 feet away. I AM the sun... My socks are clearly melting around my feet. I contemplate whether I should be worried as this is really very strange, then I start to process the sensations, and consider whether I am having a heart attack ... probably not, pulse is fine, or a stroke... probably not, as I am cogent, just HOT. I wrack my brain thinking I am having an allergic reaction but I haven't eaten anything yet today. So then I remember... OH... The Niacin. I read the reviews, I remembered the "flush". Well, that term does not accurately describe this sensation. It subsides after about 25-30 minutes but lessened some after 15 or so. Whew. That was my fault. So after thinking about it, that wasn't so bad, just different. You can feel that niacin working, coursing through your body. Oh, don't forget the distinctly metallic taste that floods your mouth while this is happening. Now, after a couple of weeks, it seems the flush is diminishing a little but I have decided that I kind of like it. So just be prepared when you try it for the first time if you are not accustomed to this sensation. The product itself is great, I would purchase again.

### ⭐ Flushing, is painful sensation as it “bloomed”
*by A***R on October 26, 2025*

“Flushing” cute name for your body turning bright red & burning. Lowers BP, caused severe dizziness upon standing. Also HOT FLASHES! Both women & MEN. My husband & myself added Life Extension Niacin to our daily vitamins. I experienced side effects about 10 days after taking them. I thought it was a reaction to something else. I made 3 trips to the local Urgent Care. Switched, shampoos, soaps, did the elimination diet, changed anything that came in contact with my skin, detailed my car, even bathed the cat and started to carry Benadryl tablets. I had a follow-up with an allergist, everything came back negative. My husband was having hot flashes. Since he had not mentioned he had dizzy spells & until after he fainted be getting up in the middle of the night. Then today, he started to get the flushed red blotchy burning skin. I did some research, we narrowed it down to the Niacin. We thought because it was a vitamin, it would be safe. In our case it had bad results. So be aware!

## Frequently Bought Together

- Life Extension Vitamin B3 Niacin 500 mg – Niacin (Vitamin B3), Supports Heart Health, Promotes cellular energy production – Gluten-Free, Non-GMO – 100 Capsules
- Nature's Bounty Vitamin B6 100mg Tablets - Supports Energy Metabolism & Nervous System Health, 100 Ct
- Nature Made Vitamin B1 100 mg, Dietary Supplement for Energy Metabolism Support, 100 Tablets, 100 Day Supply

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*Product available on Desertcart Iceland*
*Store origin: IS*
*Last updated: 2026-03-06*