No-Flush Niacin 500 mg®

Other Combinations

Brand: Source Naturals

Tablet or PillOther CombinationsOn Market

Functions

Heart & Circulation

Product label for No-Flush Niacin 500 mg — Click to view full label

Net Contents

60 Tablet(s)

Serving Size

1 Tablet(s)

Servings Per Container

Supplement Form

Tablet or Pill

Bar Code (UPC/SKU)

0 21078 00921 4

Product Version

SN0921 REV I201 FG-107466

Label Analysis

Objective insights generated automatically from the official DSLD label — a quick, factual read of how this product is formulated and disclosed.

2Active Ingredients

2 distinct active ingredients are disclosed in Supplement Facts.

100%Amount Transparency

Every active ingredient discloses a specific amount per serving.

1% Daily Value Coverage

1 ingredients report a %DV; 1 meet or exceed 100% DV.

2Dietary Attributes

Label states: Vegetarian, Gluten-Free.

This analysis is generated algorithmically from label data for educational reference only. It is not a product endorsement, ranking, or medical advice.

Allergen Guide

Contains

Milk
Egg
Wheat
Soy
Gluten

Allergen flags are parsed automatically from the official label's claims and statements. Always verify against the physical product label before use, especially if you have a severe allergy.

Supplement Facts

Serving Size: 1 Tablet(s) · 1 per day

Ingredient	Amount Per Serving	% Daily Value
Niacin(Inositol Hexanicotinate, Vitamin B3)	500 mg	3125%
Inositol(Inositol Hexanicotinate)	143 mg	—

Not Present

Other Ingredients

SorbitolStearic AcidModified Cellulose GumSilicaMagnesium Stearate

Target Groups

VegetarianAdult (18 - 50 Years)Gluten FreeDairy FreeSugar Free

Label Claims

NutrientAll OtherStructure/Function

Directions & Suggested Use

Suggested/Recommended/Usage/Directions

Suggested Use: 1 tablet daily.

Warnings & Precautions

Precautions re: All Other

Do not use if either tamper-evident seal is broken or missing.

Precautions re: Children

Keep out of the reach of children.

Precautions re: Pregnant or Nursing or Prescription Medications

Note: If you are pregnant, may become pregnant, or breastfeeding, consult your health care professional before using this product.

Formulation

Formula re: Contains

B-3 for energy & cardiovascular health No-Flush Niacin 500 mg

Formula re: Contains

Niacin plays an essential role in the activities of various enzymes involved in the metabolism of carbohydrates and fats, the functioning of the nervous system and digestive systems, the manufacturing of sex hormones and cholesterol, and the maintenance of healthy skin. Inositol hexanicotinate functions as niacin without the characteristic "flush"

Formulation re: Vegetarian/Vegan

Suitable for vegetarians.

Formulation re: Does NOT Contain

Contains no yeast, dairy, egg, gluten, soy or wheat. Contains no sugar, starch, preservatives, or artificial color, flavor or fragrance.

FDA Statements

FDA Statement of Identity

Dietary Supplement

FDA Disclaimer Statement

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.

Other Label Statements

Brand IP Statement(s) re: (c), (TM), (SM)

Manufacturer & Distributor

Distributor

Source Naturals, Inc.

P. O. Box 2118, Santa Cruz, CA, 95062

Market Reference

$7.50 – $140.00· 40 listings

Source Naturals No-Flush Niacin
Smallflower.com4.8(233)
$11.18
Source Naturals, No-Flush Niacin, 500 Mg, 30 Tablets
Maple Herbs4.8(233)
$34.86
Niacin Flush Free 500 Mg Cap, 500 MG Capsules
Amazon.com
$7.50Lowest
Nature's Bounty Flush Free Niacin 500 mg
Walmart - Nestle Health Science4.7(126)
$25.28
Walgreens Flush Free Niacin
Walgreens.com
$17.99
Niacinamide 500 mg Source Naturals
PureFormulas.com4.4(5)
$9.79
No-flush Niacin 500 Mg
EarthTurns.com
$19.98
(2 pack) Spring Valley Flush Free Niacin Dietary Supplement Capsules for Metabolism Support, 500 mg, 240 Count
Walmart4.5(336)
$23.58

Where to Buy Locally

Enter your city or ZIP code to find supplement & health stores in your area that may carry this product.

Showing representative supplement & health retailers — search above for stores in your area.

The Vitamin Shoppe
4.7 (123)
Vitamin & supplements store
1217 NY-300, Newburgh, NY 12550
Directions (845) 567-1850
Doc's Nutrition Depot
5.0 (40)
Vitamin & supplements store
1054 Main St, Fishkill, NY 12524
Directions (845) 897-0079
CVS
2.7 (136)
Vitamin & supplements store
203 S Plank Rd, Newburgh, NY 12550
Directions (845) 566-0012
Herbal Wellness
5.0 (83)
Health food store
243 Broadway, Newburgh, NY 12550
Directions (845) 563-0789
GNC
4.4 (43)
Vitamin & supplements store
413 NY-376, Hopewell Junction, NY 12533
Directions (845) 223-5548
The Vitamin Shoppe
4.7 (108)
Vitamin & supplements store
1936 South Rd, Poughkeepsie, NY 12601
Directions (845) 296-0790
Walgreens
2.6 (119)
Vitamin & supplements store
82 N Plank Rd, Newburgh, NY 12550
Directions (845) 926-3600
Diesel Rx
4.8 (20)
Vitamin & supplements store
Poughkeepsie Galleria Mall, 2001 South Rd, Poughkeepsie, NY 12601
Directions (845) 632-2880

Research & Studies

Niacin: chemical forms, bioavailability, and health effects
D MacKay, J Hathcock, E Guarneri - Nutrition reviews, 2012 - academic.oup.com
… This compound is marketed as “no-flush niacin.” The small amount of data … dietary supplement in tablets of 500 mg and 750 mg, NA should not be used at gram dosages without medical …
2012170 citations
What does" clinically proven" really mean?
RE Kowalski - Diet-Heart Newsletter, 2007 - go.gale.com
… supplements as simply a part of a heart-healthy regimen and taking the … "No Flush" niacin products in health food stores or online. They contain either niacinamide (a metabolite of niacin…
2007
Over-the-counter supplements for cholesterol lowering
KM Shields, JA Woelfel - Pharmacist's Letter & …, 2006 - scholarlycommons.pacific.edu
… To avoid flushing, patients may be tempted to use the “no-flush” or “flush free” niacin (… niacin absorbed to provide therapeutic levels.Patients taking any form of niacin should have health …
2006
A systematic review on evidence of the effectiveness and safety of a wax-matrix niacin formulation
AP Dunatchik, MK Ito, CA Dujovne - Journal of Clinical Lipidology, 2012 - Elsevier
… -release niacin, associated with a greater incidence of flushing, and sustained-release niacin, … One such sustained-release niacin nutritional supplement formulation, Endur-acin (…
201211 citations
Triglyceride lowering drugs
KR Feingold - Endotext [Internet], 2025 - ncbi.nlm.nih.gov
… No flush” niacin is also available but is generally ineffective as a lipid-modifying agent because most of these preparations do not contain active nicotinic acid… oil supplementation except …
202583 citations
User's Guide to Natural Therapies for Cancer Prevention
A Hoffer - 2004 - books.google.com
… supported by the medical literature, our medical institutions, … no-flush forms, which have to be carefully formulated. Inositol niacinate is a combination of two vitamins, inositol and niacin…
20041 citations

Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2022-10-24. DSLD Label ID: 275428. This information is provided for educational reference only and is not medical advice. Always follow the product label and consult a doctor or pharmacist before use.