Niacin Inositol Hexanicotinate 500 mg®
Other CombinationsBrand: 21st Century
Functions
Net Contents
110 Capsule(s)
Serving Size
1 Capsule(s)
Servings Per Container
Not specified
Supplement Form
Capsule
Bar Code (UPC/SKU)
7 40985 27089 9
Product Version
500850-1217N
Label Analysis
Objective insights generated automatically from the official DSLD label — a quick, factual read of how this product is formulated and disclosed.
2 distinct active ingredients are disclosed in Supplement Facts.
Every active ingredient discloses a specific amount per serving.
1 ingredients report a %DV; 1 meet or exceed 100% DV.
Label states: 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
Free From
- 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 Capsule(s) · 1 per day
| Ingredient | Amount Per Serving | % Daily Value |
|---|---|---|
| Niacin(Inositol Hexanicotinate) | 400 mg | 2500% |
| Inositol(Inositol Hexanicotinate) | 100 mg | — |
Not Present
Other Ingredients
Target Groups
Label Claims
Directions & Suggested Use
Suggested/Recommended/Usage/Directions
Directions: As a vitamin supplement, adults take one (1) capsule daily with any meal or as directed by a healthcare provider. Do not exceed recommended dosage.
Warnings & Precautions
Precautions re: All Other
Do not exceed recommended dosage.
Precautions re: Pregnant or Nursing or Prescription Medications
Warning: Consult a healthcare provider prior to use if pregnant, nursing, on medications, have a medical condition or are planning a medical procedure.
Precautions re: All Other
Stop use and contact a physician if adverse reactions occur.
Precautions re: Children
Keep out of reach of children.
Precautions re: All Other
Do not use if product appears to be tampered with or seal is broken.
Storage
Storage
Store at room temperature.
Formulation
Formulation re: Does NOT Contain
No added Sugar, Yeast, Preservatives, Artificial Flavors or Colors.
Formulation re: Does NOT Contain
Gluten free
Formula re: Contains
Niacin (vitamin B-3) plays a role in energy metabolism. Niacin from Inositol Hexanicotinate is a good source of vitamin B-3 with a lower flushing effect than that of niacin.
FDA Statements
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.
FDA Statement of Identity
Vitamin Supplement
Other Label Statements
General Statements: All Other Content
Individual results may vary.
General Statements: All Other Content
Flush free
General Statements: All Other Content
Energy & Circulatory Support
Seals/Symbols
Gluten free
Seals/Symbols
Guaranteed quality Laboratory tested
Manufacturer & Distributor
Manufacturer
21st Century HealthCare, Inc.
2119 S. Wilson St., Tempe, AZ, 85282, USA
Market Reference
21st Century Niacin 500 mg Prolonged Release Tablets
iHerb4.7(313)$8.99Cellular Health Support 21st Century Inositol 500 mg
21st-century-vitamins$9.9921st Century Niacin 500 mg Flush Free Capsules
OTC Superstore4.8(19)$9.5321st Century Niacinamide 500 mg Prolonged Release Tablets
21st-century-vitamins4.7(2000)$5.4921st Century Niacin Inositol Hexanicotinate 500 mg 3Pack (110 Capsules) Dietary Supplement Helps Convert
GoSupps.com4.7(313)$94.99BulkSupplements Flush Free Niacin Powder
Walmart - BulkSupplements.com4.6(10)$35.9721st Century Niacin 100 mg Tablets
iHerb4.7(1600)$5.49Niacin Capsules
Revitalize Wellness$34.99
Where to Buy Locally
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Showing representative supplement & health retailers — search above for stores in your area.
Supplemented
4.7 (192)Vitamin & Supplements Shop
Online Retail Ltd Box 1031A, Surbiton, Kingston upon Thames KT1 9AH
British Supplements
3.4 (274)Vitamin & Supplements Shop
34, New House, 67-68 Hatton Garden, London EC1N 8JY
Novomins
4.9 (480)E-commerce service
Suite 1000, 405 King's Rd, London SW10 0BB
Charge Products
3.0 (2)Vitamin & Supplements Shop
Office 1, Charge Products, Industrial Estate, Unit 1, 8 Towerfield Rd, Towerfield Cl, Southend-on-Sea SS3 9QE
Lifestyle Vitamins
4.2 (10)Vitamin & Supplements Shop
Enterprise Centre, Nutribrand, Pine Grove, Crowborough TN6 1DH
NutriVital Supplements Ltd
5.0 (28)Vitamin & Supplements Shop
Unit 6/1, Hillsdown Farm, Birchgrove Ln, Haywards Heath RH17 7DH
Zipvit
4.8 (18)Vitamin & Supplements Shop
Towers Business Park, The, Wheelhouse Rd, Rugeley WS15 1UZ
Metagenics UK
4.6 (203)Vitamin & Supplements Shop
Botany Business Park, Macclesfield Rd, Whaley Bridge, High Peak SK23 7DQ
Research & Studies
Niacin: chemical forms, bioavailability, and health effects
D MacKay, J Hathcock, E Guarneri - Nutrition reviews, 2012 - academic.oup.com
… of niacin available in the marketplace include unbound niacin… a period of time; inositol hexanicotinate, six molecules of NA … as a dietary supplement in tablets of 500 mg and 750 mg, NA …
2012170 citationsNiacin: The Real Story
AW Saul, A Hoffer, HD Foster - 2023 - books.google.com
… on niacin’s clinical benefits in a number of health conditions. … should cover inositol hexaniacinate as they now cover niacin to … to even a 100 milligrams niacin supplement. We need …
20237 citationsNiacin: The Real Story: Learn about the Wonderful Healing Properties of Niacin
A Hoffer, AW Saul, HD Foster - 2015 - books.google.com
… on niacin's clinical benefits in a number of health conditions. … should cover inositol hexaniacinate as they now cover niacin to … close to even a 100 mg niacin supplement. We need …
201525 citationsWax-matrix extended-release niacin vs inositol hexanicotinate: A comparison of wax-matrix, extended-release niacin to inositol hexanicotinate “no-flush” niacin in …
JM Keenan - Journal of Clinical Lipidology, 2013 - Elsevier
… Subjects had to be generally healthy, 18-75 years of age, and not taking any medications or supplements known or suspected to affect lipid levels. Blood lipid levels had to indicate …
201311 citationsA Clinicians Guide to Recommending Common Cholesterol-Lowering Dietary Supplements: JM Backes, DE Hilleman
JM Backes, DE Hilleman - American Journal of Cardiovascular Drugs, 2024 - Springer
… to improve cholesterol or cardiovascular health. Omega-3 fatty … by other niacin preparations, and commonly contain inositol … that 1500 mg/day of inositol hexanicotinate had no impact on …
20243 citationsNonpharmacologic treatment of dyslipidemia
MC Houston, S Fazio, FH Chilton, DE Wise… - Prog Cardiovasc …, 2009 - academia.edu
… in using inositol hexaniacinate (IHN) was to make niacin … supplement according to the Dietary Supplement Health and … marketed as a dietary supplement cannot contain an agent that …
2009150 citations
Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2019-09-24. DSLD Label ID: 206779. 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.
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