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 Flush Free 500 mg
7,122 Reviews
Nature's Bounty Niacin Flush Free 500 mg
  • ENERGY SUPPORT: Niacin, part of the B Vitamin family, provides a number of benefits. In addition to supporting heart health & nervous system health, Niacin helps to support energy by aiding in the conversion of food into energy.*
  • HEALTHY SKIN & FLUSH FREE: Vitamin B3, also known as Niacin, can help maintain the overall health of your skin; Not only that, but our flush free formula is less likely to cause flushing, so your healthy, vibrant skin can look and feel its best
  • EVERYDAY HEALTH: Nature's Bounty provides herbal products for a variety of health concerns. Nature's Bounty Niacin is just part of the line of traditional supplements offered to support your health and your body.*
  • NATURE'S BOUNTY, BETTER OFF HEALTHY: Health conscious people have trusted Nature’s Bounty products for decades; Our dedication to quality, consistency, and scientific research has resulted in vitamins and nutritional supplements of unrivaled excellence
  • 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 Niacin (Vitamin B3) 500mg, 240 Capsules - with Flushing, Non-GMO, Gluten Free
4,272 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
Sale#3 Real Supplements Rated Best in 2020
Doctor's Best TimeRelease Niacin with niaxtend NonGMO Vegan Gluten Free 500 mg Tablets, 120 Count
1,720 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
#4 Real Supplements Rated Best in 2020
Nature's Bounty Niacin Pills and Supplement, Supports Nervous System and Energy Production, 250mg, 90 Capsules
924 Reviews
Nature's Bounty Niacin Pills and Supplement, Supports Nervous System and Energy Production, 250mg, 90 Capsules
  • Supports heart health
  • Supports carbohdrate and protein metabolism
  • Helps maintain healthy skin
  • Helps maintain a healthy nervous system
  • These statements have not been evaluated by the Food and Drug Administration
#5 Real Supplements Rated Best in 2020
Nutricost Niacinamide (Vitamin B3) 500mg, 240 Capsules - Non-GMO, Gluten Free, Flush Free Vitamin B3
8,183 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
#6 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
455 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 & 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
#7 Real Supplements Rated Best in 2020
NOW Supplements, Niacin (Vitamin B-3) 500 mg, Sustained Release, Nutritional Health, 250 Tablets
  • NIACIN 500 mg TABLETS/VITAMIN B-3: Niacin (Vitamin B-3) is an essential B-group vitamin necessary for good health.
  • SUSTAINED RELEASE TO MINIMIZE FLUSHING: Niacin supplements may sometimes temporarily cause flushing and/or itching, but this sustained release tablet should minimize those symptoms. To further limit these uncomfortable but not dangerous symptoms, take daily and avoid missing doses.
  • CERTIFICATIONS/CLASSIFICATIONS: Soy Free, Made without Gluten, Dairy Free, Egg Free, Nut Free, Kosher, Vegan/Vegetarian
  • 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
#8 Real Supplements Rated Best in 2020
NOW Supplements, Niacin (Vitamin B-3) 500 mg, Flush-Free, Double Strength, Nutritional Health, 90 Veg Capsules
1,257 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
#9 Real Supplements Rated Best in 2020
Nutricost Niacin (Vitamin B3) 100mg, 240 Capsules - with Flushing, Non-GMO, Gluten Free
74 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
#10 Real Supplements Rated Best in 2020
BulkSupplements.com Niacin (Vitamin B3) Powder - Cholesterol Supplements - Niacin 500 mg - Niacin Powder (500 Grams - 1.1 lbs)
1,113 Reviews
BulkSupplements.com Niacin (Vitamin B3) Powder - Cholesterol Supplements - Niacin 500 mg - Niacin Powder (500 Grams - 1.1 lbs)
  • PROMOTES CARDIOVASCULAR HEALTH* - Niacin (vitamin B3) is a water-soluble vitamin created by the body that plays an important role in many bodily functions. Niacin helps support the cardiovascular system and the heart.* It contributes to healthy metabolic function, supports the pancreas, and works to support brain & nerve function.*
  • SUPPORTS CHOLESTEROL HEALTH* - Niacin (vitamin B3) helps promote normal cholesterol levels already within a healthy range.*
  • HELPS SUPPORT SKIN HEALTH* - Vitamin B3 promotes skin health with niacin's ability to help maintain elasticity of skin cells.* It supports healthy skin appearance and texture while helping reduce dryness and irritation associated with sensitive or mature skin types.*
  • SUPPORTS METABOLIC FUNCTION* - Niacin helps contribute to maintaining proper energy metabolism as part of a balanced diet for active individuals.* This includes supporting fat, carbohydrate, protein, and energy metabolism.*
#11 Real Supplements Rated Best in 2020
Carlson - Niacin, 50 mg, Supports Cholesterol Metabolism, Energy Production, Heart Health, Nerve Function, 300 Tablets
321 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.
#12 Real Supplements Rated Best in 2020
NOW Supplements, Niacin (Vitamin B-3) 500 mg, Essential B-Group Vitamin*, Nutritional Health, 100 Capsules
1,086 Reviews
NOW Supplements, Niacin (Vitamin B-3) 500 mg, Essential B-Group Vitamin*, Nutritional Health, 100 Capsules
  • 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: 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#13 Real Supplements Rated Best in 2020
Rugby Niacin 500 mg 1000 Tabs
1,722 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.
Sale#14 Real Supplements Rated Best in 2020
Swanson Niacin (B3) Cardio Health Support Carbohydrate Metabolism 100 Milligrams 250 Tabs
228 Reviews
Swanson Niacin (B3) Cardio Health Support Carbohydrate Metabolism 100 Milligrams 250 Tabs
  • B-vitamin nutrition for heart health

  • Essential for carbohydrate metabolism

  • Plays a key role in maintaining healthy lipid levels

  • Per GMP guidelines set forth by the FDA, most products are formulated for 24 months from the date of manufacture. Liquids and probiotics are formulated for 12 months.
#15 Real Supplements Rated Best in 2020
Slo Niacin 500mg 2 Packs each of 175 Tablets
906 Reviews
Sale#16 Real Supplements Rated Best in 2020
ENDUR-ACIN Niacin - Vitamin B3 500mg Extended Release & Low-Flush, 200 Tablets - Supports Cholesterol Balance & Heart Health - Endurance Products
897 Reviews
ENDUR-ACIN Niacin - Vitamin B3 500mg Extended Release & Low-Flush, 200 Tablets - Supports Cholesterol Balance & Heart Health - Endurance Products
  • LOW-FLUSH NIACIN: Each Endur-Acin tablet contains 500mg of niacin as nicotinic acid (vitamin B-3) in a vegetable wax matrix (tablet core) for an extended release over 6-8 hours.
  • HEART HEALTH AND CHOLESTEROL BALANCE: Backed by clinical research and may help maintain healthy cholesterol levels within the normal range.*
  • OPTIMAL ABSORPTION & MAXIMUM EFFECTIVENESS: The proprietary vegetable-based wax matrix melts at body temperature to slowly release nutrients over 6-8 hours, mimicking how your body processes food. This minimizes side effects and digestive upset.*
  • FREE OF COMMON ALLERGENS: Vegan/Vegetarian safe. No milk, egg, fish, shellfish, tree nuts, peanuts, wheat, corn, yeast, or soy. Gluten-free. No salt, sugar, starch, artificial flavorings, or preservatives.
  • MEETS STRICT GOOD MANUFACTURING PRACTICES: Manufactured and packaged in the Pacific Northwest, USA at an FDA registered facility. Family-owned and operated since 1978.
#17 Real Supplements Rated Best in 2020
Rite Aid Niacin, 100mg - 100 Tablets | Vitamin B3 Supplement
179 Reviews
Rite Aid Niacin, 100mg - 100 Tablets | Vitamin B3 Supplement
  • SUPPORTS GOOD CHOLESTEROL: Niacin is essential for carbohydrate metabolism and helps maintain healthy blood lipid levels.
  • NO UNNECESSARY ADDITIVES: Rite Aid's niacin 100 mg tablets contain no sugar, no preservatives, and no artificial colors or flavors.
  • DAILY SUPPLEMENT: Take one niacin tablet daily to support a healthy blood lipid profile and lifestyle.
  • RITE AID VISION & MISSION: Our vision at Rite Aid is for customers to confidently choose us first for their everyday health and wellness needs because we consistently understand and exceed their expectations. Our mission is to improve the health and wellness of our communities through engaging experiences that provide our customers with the best products, services, and advice for their unique needs.
Sale#18 Real Supplements Rated Best in 2020
BlueBonnet Niacin 100 mg Vegetable Capsules, 90 Count ('743715004597)
360 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
Solaray Niacin 100 mg, Vitamin B3 | Skin Health, Cardiovascular, Nervous System & Circulation Support | 100ct
181 Reviews
Solaray Niacin 100 mg, Vitamin B3 | Skin Health, Cardiovascular, Nervous System & Circulation Support | 100ct
  • 100mg 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 tested for potency & purity
Sale#20 Real Supplements Rated Best in 2020
Spring Valley - Flush Free Niacin (B-3) 500 mg, 240 Capsules (2 Bottles of 120)
  • Flush Free.
  • Niacin 500 mg per Capsule.
  • Inositol Hexanicotinate.
  • Heart Health.
  • Twin Pack - 2 Bottles of 120 capsules each.

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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