Niacin (Vitamin B3)

  • Maintains lipid levels
  • Promotes healthy skin
  • Prevents cognitive impairments
  • Treats diabetes
  • Prevents pellagra
  • Relieves arthritis
  • Prevents birth defects
  • Treats erectile dysfunction
  • Relieves motion sickness
  • Aids in digestion

Best Niacin

Sale#1 Real Supplements Rated Best in 2020
Nature’s Bounty Niacin 500mg Flush Free, Cellular Energy Support, Supports Nervous System Health, 120 Capsules
8,739 Reviews
Nature’s Bounty Niacin 500mg Flush Free, Cellular Energy Support, Supports Nervous System Health, 120 Capsules
  • CELLULAR ENERGY SUPPORT (1): Niacin, also known as Vitamin B3, is found naturally in foods such as beef, avocados and potatoes and aids in the conversion of food to cellular energy. (1) Nature’s Bounty Niacin offers the energy cellular support you need to fuel your body (1)
  • FLUSH FREE FORMULA: Niacin not only has a wide range of health supporting benefits, but our flush free formula uses Inositol Hexanicotinate, a form of Niacin that is less likely to cause skin flushing
  • SUPPORTS NERVOUS SYSTEM HEALTH (1): Along with providing daily cellular energy support, Niacin supports nervous system health. (1) If you need a daily nervous system supplement, consider adding Nature’s Bounty Niacin to your routine (1)
  • FROM THE TRUSTED WELLNESS EXPERTS: Nature’s Bounty Niacin is a product of 50 years of dedication to quality, consistency and scientific research to make vitamins and nutritional supplements of unrivaled excellence
  • EXCELLENT VALUE COMPARED WITH OTHER TOP BRANDS: Compare Nature’s Bounty products to Bixa Botanical, Na'trition, Women’s Health Network, Organic India, Vimerson Health, Zhou, New Chapter, Baetea, Nature’s Way, BioScience Nutrition, Nature’s Secret, Bio Schwartz, Health Concerns, Nested, Havasu, and OHCO
Sale#2 Real Supplements Rated Best in 2020
Nutricost Niacinamide (Vitamin B3) 500mg, 240 Capsules - Non-GMO, Gluten Free, Flush Free Vitamin B3
11,339 Reviews
Nutricost Niacinamide (Vitamin B3) 500mg, 240 Capsules - Non-GMO, Gluten Free, Flush Free Vitamin B3
  • 240 Capsules of Niacinamide Per bottle
  • 500mg of Vitamin B3 (Niacinamide) Per Capsule
  • Get The Benefits of Vitamin B3 Without The "Niacin Flush"
  • High Quality Vitamin B3 - Niacinamide. May Have White or Blue Lid
  • Non-GMO, Gluten Free, Soy Free, and Made in a GMP Compliant, FDA Registered Facility
#3 Real Supplements Rated Best in 2020
Nutricost Niacin (Vitamin B3) 500mg, 240 Capsules - with Flushing, Non-GMO, Gluten Free
5,662 Reviews
Nutricost Niacin (Vitamin B3) 500mg, 240 Capsules - with Flushing, Non-GMO, Gluten Free
  • Potent 500mg of Niacin (Vitamin B3) Per Capsule
  • Warning: Will Likely Cause "Niacin Flush." For Non-Flush, try Niacinamide. Consuming On An Empty Stomach May Increase Flush Reaction
  • 240 Capsules of immediate release Niacin Per Bottle
  • Non-GMO, Gluten Free, 3rd Party Tested
  • Made in A GMP Compliant, FDA Registered Facility
#4 Real Supplements Rated Best in 2020
Doctor's Best TimeRelease Niacin with niaxtend NonGMO Vegan Gluten Free 500 mg Tablets, 120 Count
1,978 Reviews
Doctor's Best TimeRelease Niacin with niaxtend NonGMO Vegan Gluten Free 500 mg Tablets, 120 Count
  • Real Niacin provides niacin in an 8-hour extended-release form that enables you to enjoy the health benefits of niacin without experiencing the uncomfortable skin flushing that commonly accompanies other forms of niacin
  • Niacin, also known as vitamin B3 or nicotinic acid, supports more than 500 enzymatic reactions that play pivotal roles in metabolism, energy production, and healthy aging
Sale#5 Real Supplements Rated Best in 2020
Nature's Bounty Flush Free Niacin 500 Mg, 240 Capsules (2 X 120 Count Bottles)
798 Reviews
Nature's Bounty Flush Free Niacin 500 Mg, 240 Capsules (2 X 120 Count Bottles)
  • Pack of 240 Capsules (Packed as 2 x 120 count bottles)
  • Supports heart health. Supports carbohdrate and protein metabolism.*
  • Helps maintain healthy skin.*
  • Flush-free formula.**
  • 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. **NOTICE: Most people should not experience flushing when using this product. However, a few sensitive individuals may experience some flushing. Do not take on an empty stomach.
#6 Real Supplements Rated Best in 2020
Nutricost Niacin (Vitamin B3) 100mg, 240 Capsules - with Flushing, Non-GMO, Gluten Free
304 Reviews
Nutricost Niacin (Vitamin B3) 100mg, 240 Capsules - with Flushing, Non-GMO, Gluten Free
  • 100mg of Niacin (Vitamin B3) Per Capsule
  • Warning: Will Likely Cause "Niacin Flush." For Non-Flush, try Niacinamide. Consuming On An Empty Stomach May Increase Flush Reaction
  • 240 Capsules of immediate release Niacin Per Bottle
  • Non-GMO, Gluten Free, 3rd Party Tested
  • Made in A GMP Compliant, FDA Registered Facility
Sale#7 Real Supplements Rated Best in 2020
Solgar Niacin (Vitamin B3) 500 mg, 250 Vegetable Capsules - Cardiovascular Support - Energy Metabolism - Non-GMO, Vegan, Gluten Free, Dairy Free, Kosher - 250 Servings
638 Reviews
Solgar Niacin (Vitamin B3) 500 mg, 250 Vegetable Capsules - Cardiovascular Support - Energy Metabolism - Non-GMO, Vegan, Gluten Free, Dairy Free, Kosher - 250 Servings
  • Vitamin B3; Niacin (also known as Vitamin B3) is a water-soluble vitamin and is part of the B complex; this formulation provides 500 mg per serving
  • Energy metabolism; Niacin is required for the metabolism of carbohydrates and protein into energy
  • No-flush delivery; The unique inositol-bound Niacin in this formula allows for gentle, No-Flush delivery of niacin to the body; Provides 400 mg of niacin (as inositol Hexanicotinate) per serving
  • Non-gmo, Gluten, wheat and Dairy Free; Solgar Niacin is vegan, Kosher, and free of: gluten, wheat, dairy, soy, yeast, sugar, sodium, artificial flavor, sweetener, preservatives, and color; suitable for vegetarians
  • The gold standard: for over 70 years, Solgar has been committed to QUALITY, health, and well-being; our mission is to create the finest nutritional supplements in small batches, through tireless research, using only the finest RAW materials
Sale#8 Real Supplements Rated Best in 2020
Nature Made Flush Free Niacin 500 mg, Dietary Supplement for Nervous System Support, 60 Softgels, 60 Day Supply
782 Reviews
Nature Made Flush Free Niacin 500 mg, Dietary Supplement for Nervous System Support, 60 Softgels, 60 Day Supply
  • Nervous system support supplement: contains one 60 count bottle of Nature Made Flush Free Niacin 500 mg softgels for a 60-day supply
  • These Niacin softgels have no side effects of flushing
  • This no flush Niacin 500mg supplement also supports a healthy brain and nervous system
  • Adults, take one Niacin flush free 500 mg supplement daily with water and a meal
  • Sourced from high-quality ingredients, this no flush Niacin supplement has no synthetic dyes, no artificial flavors, no preservatives, and is gluten free
#9 Real Supplements Rated Best in 2020
NOW Supplements, Niacin (Vitamin B-3) 500 mg, Flush-Free, Double Strength, Nutritional Health, 90 Veg Capsules
1,463 Reviews
NOW Supplements, Niacin (Vitamin B-3) 500 mg, Flush-Free, Double Strength, Nutritional Health, 90 Veg Capsules
  • DOUBLE STRENGTH 500 mg VEGGIE CAPSULES/FLUSH-FREE: Flush-free niacin contains inositol hexanicotinate, a form of niacin that consists of six molecules of niacin linked to a single inositol molecule. It is slowly broken down in the body to yield free niacin and inositol. This gradual release of niacin allows for true niacin activity without the characteristic niacin flush that many people cannot tolerate.
  • NUTRITIONAL HEALTH: Niacin (vitamin B-3) is an essential B-Complex vitamin.
  • CERTIFICATIONS/CLASSIFICATIONS: Vegan/Vegetarian, Made without Gluten, Non-GMO
  • GMP Quality Assured: NPA A-rated GMP certification means that every aspect of the NOW manufacturing process has been examined, including our laboratory/testing methods (for stability, potency, and product formulation).
  • Packaged in the USA by a family owned and operated company since 1968
Sale#10 Real Supplements Rated Best in 2020
Rugby Niacin 500 mg 1000 Tabs
1,840 Reviews
Rugby Niacin 500 mg 1000 Tabs
  • 500 mg tablets
  • Promotes healthy tissues
  • Maintains a healthy lipid balance
  • During the summer months products may arrive warm but Amazon stores and ships products in accordance with manufacturers' recommendations, when provided.
#11 Real Supplements Rated Best in 2020
NOW Supplements, Niacin (Vitamin B-3) 250 mg, Flush-Free, Nutritional Health, 180 Veg Capsules
625 Reviews
NOW Supplements, Niacin (Vitamin B-3) 250 mg, Flush-Free, Nutritional Health, 180 Veg Capsules
  • FLUSH-FREE NIACIN 250 mg VEGGIE CAPSULES: Flush-free Niacin contains Inositol Hexanicotinate, a form of Niacin that contains six molecules of niacin linked to a single inositol molecule. It is slowly broken down in the body to yield free niacin and inositol. This gradual release of Niacin allows for true Niacin activity without the characteristic Niacin flush that many people cannot tolerate.
  • NUTRITIONAL HEALTH: Niacin (Vitamin B-3) is an essential B-Complex vitamin.
  • CERTIFICATIONS/CLASSIFICATIONS: Non-GMO, Vegan/Vegetarian, Made without Gluten
  • GMP Quality Assured: NPA A-rated GMP certification means that every aspect of the NOW manufacturing process has been examined, including our laboratory/testing methods (for stability, potency, and product formulation).
  • Packaged in the USA by a family owned and operated company since 1968
Sale#12 Real Supplements Rated Best in 2020
Niacin 1000mg 100 Capsules | with Flushing | Vitamin B3 | Non-GMO, Gluten Free | by Horbaach
659 Reviews
Niacin 1000mg 100 Capsules | with Flushing | Vitamin B3 | Non-GMO, Gluten Free | by Horbaach
  • Horbaach Niacin 1000 mg, also known as Vitamin B3, is a non-GMO and gluten-free supplement
  • Niacin pills help maintain cholesterol levels already within a normal range*
  • Our quick-release niacin capsules contain 1,000 mg per serving in one convenient capsule
  • Niacin also supports nervous system health and energy metabolism*
  • Our niacin vitamins deliver max potency and are pure, ready to nourish the body
Sale#13 Real Supplements Rated Best in 2020
Life Extension No Flush Niacin 640 mg - Flush Free Vitamin B Supplement Pills with Inositol for Healthy Metabolism and Cholesterol Management – Non-GMO, Gluten-Free - 100 Capsules
609 Reviews
Life Extension No Flush Niacin 640 mg - Flush Free Vitamin B Supplement Pills with Inositol for Healthy Metabolism and Cholesterol Management – Non-GMO, Gluten-Free - 100 Capsules
  • ALL THE BENEFITS, NONE OF THE FLUSH - Niacin is called “B3” because it was the third B vitamin to be discovered. Our No Flush Niacin formula offers all the benefits you normally get in a high-quality niacin supplement, including promoting your metabolism health, supporting your cardiovascular system, as well as neurological support. However, one thing you wouldn’t experience is the flushing that can come with some vitamin B3 supplements.
  • MORE FACTS ABOUT NIACIN – Vitamin B3 niacin is a water-soluble nutrient and is absorbed in your intestines. It is crucial to your energy transfer reactions, particularly those that help your body metabolize glucose (sugar), fat and alcohol. Niacin has also been shown to help metabolize the foods you eat, and, like many B vitamins, it promotes healthy cellular energy production.
  • HEALTH BENEFITS OF B3 NIACIN - Niacin has beneficial effects on your blood lipids, helping to maintain your healthy cholesterol levels already within normal range. In addition, vitamin B coenzymes (such as niacin) are crucial to your metabolic pathways that generate cellular energy. Vitamin B3 also promotes a healthy metabolism because this nutrient is required for your body to utilize dietary fats and carbohydrates and metabolize alcohol.
  • INGREDIENTS MATTER - Sourced using only the finest raw ingredients with the purity and potency your body deserves. The majority of our products are non-GMO, gluten-free, and manufactured in the USA—and a Certificate of Analysis is available for every product we produce.
  • LIVE YOUR HEALTHIEST LIFE - For over 40 years, we’ve been developing advanced, effective formulas made with the highest standards and based on the latest scientific findings. We believe the answers to a healthier, richer life are within reach, and that rigorous scientific research is the path to get us there. Our formulations are created using the ingredients and dosages used in the studies that inspired them, ensuring that maximum bioavailability and efficacy is achieved.
#14 Real Supplements Rated Best in 2020
Solaray Niacin 500 mg, Vitamin B3 | Skin Health, Cardiovascular, Nervous System & Circulation Support | 100ct
514 Reviews
Solaray Niacin 500 mg, Vitamin B3 | Skin Health, Cardiovascular, Nervous System & Circulation Support | 100ct
  • 500mg Support: Niacin may help support energy metabolism as well as skin, circulation & nerve health
  • Heart Healthy: May help support healthy cardiac function & cholesterol already within a normal range
  • Niacin Flush: May help support healthy blood flow, which can cause skin to temporarily appear red
  • Trusted Brand: Non-GMO & vegan; manufactured in our own facility & lab verified for potency & purity
Sale#15 Real Supplements Rated Best in 2020
Source Naturals Niacin, Vitamin B-3 100 mg Dietary Supplement - 250 Tablets
551 Reviews
Source Naturals Niacin, Vitamin B-3 100 mg Dietary Supplement - 250 Tablets
  • SOURCE NATURALS BENEFITS. Niacin plays an essential role in the activities of various enzymes involved in the metabolism of carbohydrates and fats, the functioning of the nervous and digestive systems, the manufacturing of sex hormones, and maintenance of healthy skin.
  • SUGGESTED USE. 1 Tablet daily.
  • SUITABLE FOR VEGETARIANS. Contains no yeast, dairy, egg, gluten, corn, soy or wheat. Contains no sugar, starch, salt, preservatives, or artificial color, flavor or fragrance.
  • TRUSTED FOR OVER 35 YEARS. Source Naturals was created in 1982 by CEO Ira Goldberg to support each individual's potential to enjoy optimal health.
  • MANUFACTURED IN THE USA. Our facility is located in Scotts Valley California.
#16 Real Supplements Rated Best in 2020
Thorne Niacinamide - 500mg Niacin - Non-Flushing Form of Vitamin B3 - Support Joint Health, Skin Health & Restful Sleep - Gluten-Free - 180 Capsules
648 Reviews
Thorne Niacinamide - 500mg Niacin - Non-Flushing Form of Vitamin B3 - Support Joint Health, Skin Health & Restful Sleep - Gluten-Free - 180 Capsules
  • Vitamin B3: A non-flushing form of vitamin B3
  • Sleep: Supports restful sleep*
  • Joints: Supports joint health*
  • Free From: Every Thorne product is made with the purest possible ingredients - without gluten or other major allergens (eggs, tree nuts, peanuts). This product also contains no soy, dairy, yeast, shellfish, or fish.
  • Thorne's commitment to integrity and science-backed products has helped us earn the trust of thousands of health-care professionals, U.S. National Teams, the Mayo Clinic, and families around the world.
Sale#17 Real Supplements Rated Best in 2020
Carlson - Niacin, 50 mg, Supports Cholesterol Metabolism, Energy Production, Heart Health, Nerve Function, 300 Tablets
388 Reviews
Carlson - Niacin, 50 mg, Supports Cholesterol Metabolism, Energy Production, Heart Health, Nerve Function, 300 Tablets
  • CHOLESTEROL METABOLISM - Niacin (vitamin B3) is an essential B vitamin that's important for properly metabolizing fats and fat-like substances, such as cholesterol.
  • HEART FUNCTION - Carlson Niacin Supplements help promote healthy heart health and nerve function.
  • ENERGY PRODUCTION - Support your body's healthy energy production with 50mg Niacin tablets from Carlson.
  • 50 MG OF NIACIN - A single tablet of Carlson Niacin supplements provides 50 mg of niacin.
  • QUALITY GUARANTEED SINCE 1965 - All Carlson products are tested by an FDA-registered laboratory for potency and quality.
Sale#18 Real Supplements Rated Best in 2020
BlueBonnet Niacin 100 mg Vegetable Capsules, 90 Count ('743715004597)
476 Reviews
BlueBonnet Niacin 100 mg Vegetable Capsules, 90 Count ('743715004597)
  • Contains 100 mg of Niacin in vegetable capsules
  • Nutritional Health Cardiovascular Support
  • 90 Vegetable Capsules, 90 Servings
  • Soy-Free, Gluten-Free, Non-GMO, Kosher Certified, Dairy-Free, Vegan
  • Free of milk, egg, fish, crustacean shellfish, tree nuts, peanuts, wheat and soybeans. Also free of corn, yeast, gluten, barley, rice, sodium and sugar.
#19 Real Supplements Rated Best in 2020
Slo Niacin 500mg 2 Packs Each of 175 Tablets
1,026 Reviews
#20 Real Supplements Rated Best in 2020
Niacin Vitamin B3 Supplement, Flush Free, Nicotinic Acid Vitamin B3 500mg Per Count, 365 Capsules (1 Year Supply), B Complex Vitamins, Support Energy Metabolism and Metabolic Function
148 Reviews
Niacin Vitamin B3 Supplement, Flush Free, Nicotinic Acid Vitamin B3 500mg Per Count, 365 Capsules (1 Year Supply), B Complex Vitamins, Support Energy Metabolism and Metabolic Function
  • Micro Ingredients Vitamin B3 Capsules as Niacin, Flush Free, 500mg, 365 Counts (1 Year Supply), B Complex Vitamins, Non-GMO.
  • Premium Vitamin B3 Niacin and Vitamin B3 Pills, Support Metabolic Function.
  • Energy Support : Niacin, Part of the B Vitamin Family, Provides a Number of Benefits. In Addition to Supporting Heart Health & Nervous System Health.
  • No GMOs, No Preservatives, No Artificial Colors, No Flavors, No Soy, No Gluten.
  • 3rd Party Lab Tested for Purity and Safety.

Best 10 Benefits of Niacin

Vitamin B3, also known as niacin, is an essential nutrient required for everyday function. Deficiency in this vitamin can lead to skin problems, memory loss, and even hallucinations or cognitive impairment. On a more positive note, here are ten benefits of regular niacin consumption:

1. Maintains lipid levels

The body needs a healthy balance of lipids, including cholesterol and triglycerides. Niacin promotes low levels of LDL cholesterol and higher levels of HDL cholesterol, and prevents the body from holding on to too many triglycerides.

2. Promotes healthy skin

Is your skin damaged by acne scars or rosacea? Niacin may be able to help. Proper intake nourishes the skin and can reverse damage caused by severe acne and other skin problems, and has even been shown to reduce the risk of skin cancer.

3. Prevents cognitive impairments

Niacin is known for its antidepressant properties and ability to promote brain repair. Aging adults may find niacin beneficial in preventing dementia, Alzheimer’s, schizophrenia, and other cognitive disorders associated with old age.

4. Treats diabetes

This vitamin helps maintain a healthy blood sugar level. Niacin is also useful in preventing diabetes-related conditions such as heart disease.

5. Prevents pellagra

Pellagra is a serious result of niacin deficiency and can only be treated with high doses of the B complexes, the most useful of which is nicotinamide.

6. Relieves arthritis

Niacinamide has been found to reduce join pain and inflammation in patients with osteoarthritis; additionally, it is known to promote muscle growth.

7. Prevents birth defects

Nicotinamide adenine dinucleotide (NAD) is responsible for DNA synthesis. Research has suggested that regular niacin intake by pregnant women ensures the proper function of NAD and prevents maldevelopment and birth defects in unborn children.

8. Treats erectile dysfunction

Niacin acts as a vasodilator, allowing blood flow to the genitals during intercourse, thereby allowing men to achieve and maintain an erection.

9. Relieves motion sickness

Niacin, particularly when taken from papayas, has been shown to be instrumental in reducing motion sickness.

10. Aids in digestion

Vitamin B3 aids in the digestion of fats and carbohydrates; a deficiency can lead to stomachaches, constipation, and other indigestion disorders.


Real Supplements gives you the best Niacin on the market today. Our top-rated lists are fresh and current so you get the best options.

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