10 Best Niacin Supplement of 2026

Last updated on 04/03/2026
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Best Choice
1
9.8
Exceptional
Vitamin B3 Niacinamide 500mg Per Capsule, 400 Capsules | 1,000mg Flush Free Niacin Per Serving, Essential B Vitamin Supplement | Non-GMO, Gluten Free
Micro Ingredients

Vitamin B3 Niacinamide 500mg Per Capsule, 400 Capsules | 1,000mg Flush Free Niacin Per Serving, Essential B Vitamin Supplement | Non-GMO, Gluten Free

Why we love it
  • Flush-free niacinamide benefits.
  • Value pack for six months.
  • Supports energy and skin health.
Main Highlights
  • Micro Ingredients offers extra strength flush-free vitamin B3, enjoy niacinamide 500mg per capsule (1,000mg per serving) with benefits that bypass any flushing side effects normally caused by regular niacin.
  • Each pouch contains 400 total capsules with every capsule providing 500mg niacinamide, a value sized package that offers essential micronutrient benefits for over 6 months.
  • The B3 vitamin plays a major role in energy support that promotes the production of NAD plus NADP, it can also be used as a skin care supplement for supporting a flawless complexion.
  • Vitamin B3 is one of the most important B vitamins for living a healthy balanced life, offers a convenient way to replenish low B vitamin levels and combat any deficiencies.
  • Premium non-GMO vitamin B3 supplements. Made without soy, dairy, gluten, preservatives, flavors, and tree nuts. Ingredients must pass our 3rd party lab tests to ensure a product that is safe, pure, and potent.
9.8
Exceptional
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🛡️Trusted by 100M+ UsersWhy?
Best Value
2
9.6
Superb
Vitamatic Niacin (Vitamin B3) 500mg,240 Tablets - Non-GMO & Gluten Free
Vitamatic

Vitamatic Niacin (Vitamin B3) 500mg,240 Tablets - Non-GMO & Gluten Free

Why we love it
  • Effective gradual release formula.
  • High potency vitamin support.
  • Clean ingredients with no additives.
Main Highlights
  • Sustained Release: Formulated for gradual release over time to maintain optimal levels.
  • Niacin (Vitamin B3): Provides 500 mg of niacin per tablet, an essential B vitamin.
  • Supports Cardiovascular Health
  • Easy to Swallow: Tablets are coated for smooth ingestion and sustained release.
  • Potent Dosage: Each bottle contains 240 tablets for a long-lasting supply.
  • Made in the USA with Strict GMP standards.
  • Free of Soy, Yeast, Wheat, Egg, Artificial Color, Flavor, & Preservatives.
9.6
Superb
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3
9.4
Superb
Spring Valley - Flush Free Niacin (B-3) 500 mg, 240 Capsules (2 Bottles of 120)
Decatela

Spring Valley - Flush Free Niacin (B-3) 500 mg, 240 Capsules (2 Bottles of 120)

Why we love it
  • Convenient capsule shape.
  • Unisex for everyone.
  • Neutral flavor for versatility.
Main Highlights
  • Item Shape: Capsule
  • Target gender: unisex
  • Flavor: Unflavored
  • Age Range Description:Adult
9.4
Superb
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4
9.3
Superb
THORNE - Niacinamide - Non-Flushing Form of Vitamin B3 - Supports Skin Health & Provides Cellular Protection* - Niacin Supplement - Third-Party Certified - Gluten, Dairy & Soy-Free - 180 Capsules
THORNE

THORNE - Niacinamide - Non-Flushing Form of Vitamin B3 - Supports Skin Health & Provides Cellular Protection* - Niacin Supplement - Third-Party Certified - Gluten, Dairy & Soy-Free - 180 Capsules

Why we love it
  • Supports restful sleep naturally.
  • Promotes joint health effectively.
  • Pure, allergen-free ingredients guaranteed.
Main Highlights
  • Vitamin B3: A non-flushing form of vitamin B3
  • Sleep: Supports restful sleep*
  • Joints: Supports joint health*
  • Third-Party Certified: This product has been third-party tested and certified to verify what's in the package matches what's on the label and to confirm it contains no unsafe levels of contaminants
  • Trusted: Thorne is chosen by champions and trusted by 100+ professional sports teams, a proud partner of U.S. National Teams, and the #1 recommended clinical brand by health-care practitioners (2023 Health-Care Practitioner Seller Survey)
9.3
Superb
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5
9.2
Superb
Dr. Berg Highly-Potent Niacin 500 mg – Now Only 125 mg per Capsule for Niacin Flush Tolerance Building – Gradually Increase to 500mg a Day – Vitamin B3 for Heart, Brain & Energy Support – 100 Capsules
Dr. Berg Nutritionals

Dr. Berg Highly-Potent Niacin 500 mg – Now Only 125 mg per Capsule for Niacin Flush Tolerance Building – Gradually Increase to 500mg a Day – Vitamin B3 for Heart, Brain & Energy Support – 100 Capsules

Why we love it
  • Gentler dosing for better tolerance.
  • Supports heart, brain, and energy.
  • Satisfaction guarantee for peace of mind.
Main Highlights
  • 𝗚𝗘𝗡𝗧𝗟𝗘𝗥 𝗗𝗢𝗦𝗜𝗡𝗚, 𝗦𝗔𝗠𝗘 𝗣𝗢𝗪𝗘𝗥𝗙𝗨𝗟 𝗙𝗢𝗥𝗠𝗨𝗟𝗔 – Now with 125 mg of niacin per capsule to help build a tolerance for niacin flush. You’re in control—adjust your intake by working up to 4 capsules daily for the full 500 mg dose of this niacin supplement.
  • 𝗥𝗘𝗖𝗢𝗠𝗠𝗘𝗡𝗗𝗘𝗗 𝗨𝗦𝗘 – Start with 1 capsule per day and slowly work up to 4 as desired, based on your body’s response to niacin flush. Take with food and a full glass of water to minimize flushing.
  • 𝗖𝗔𝗨𝗧𝗜𝗢𝗡 – Vitamin B3 niacin can cause temporary flushing, tingling, or itching.
  • 𝗦𝗨𝗣𝗣𝗢𝗥𝗧𝗦 𝗛𝗘𝗔𝗥𝗧, 𝗕𝗥𝗔𝗜𝗡 & 𝗘𝗡𝗘𝗥𝗚𝗬 𝗣𝗥𝗢𝗗𝗨𝗖𝗧𝗜𝗢𝗡 – Niacin B3 contributes to healthy energy production, supports heart and brain function, and promotes normal healthy cholesterol levels as part of a balanced diet.*
  • 𝗧𝗥𝗬 𝗙𝗢𝗥 𝟯𝟬 𝗗𝗔𝗬𝗦 – If you are unhappy with our B3 vitamin, reach out to us within 30 days of your purchase date and we will take care of you.
9.2
Superb
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6
9.0
Superb
ENDUR-ACIN - Niacin B3 - ER (Extended Release) 500 mg - Nicotinic Acid - Healthy Heart & Cholesterol Balance Supplement - Low-Flush High-Potency Niacin with 4–8 HR Timed-Release Matrix - 200 Tablets
Endurance Products

ENDUR-ACIN - Niacin B3 - ER (Extended Release) 500 mg - Nicotinic Acid - Healthy Heart & Cholesterol Balance Supplement - Low-Flush High-Potency Niacin with 4–8 HR Timed-Release Matrix - 200 Tablets

Why we love it
  • Gentle absorption with extended-release.
  • Convenient to swallow formulation.
  • Suitable for various dietary needs.
Main Highlights
  • SUPPLEMENT FOR HEART HEALTH: Trusted by top clinicians nationwide, ENDUR-ACIN delivers high-potency niacin (nicotinic acid) to support heart health and help you maintain healthy cholesterol levels within the normal range
  • EFFICIENT, GENTLE FORMULA: Each ENDUR-ACIN tablet delivers 500mg of nicotinic acid (Vitamin B3) in an extended-release form, supporting gentle absorption & helping to prevent flushing
  • SUPPORTS AN ACTIVE, VIBRANT LIFE: Support an active and vibrant lifestyle with a daily heart-smart habit. Choose ENDUR-ACIN because taking care of your heart means taking care of the life you love
  • SUITABLE FOR DIFFERENT LIFESTYLES: This supplement is created without unnecessary ingredients, making it suitable for different dietary needs. Gluten free, vegan & made without salt, sugar, starch, artificial flavors, colors, sweeteners or preservatives
  • ENDURANCE PRODUCTS CO: The multi-generational & family-owned company behind Endur has led the supplement industry for 45+ years, delivering top-quality products rooted in research while staying true to our vision. All products are manufactured in the USA
9.0
Superb
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7
8.8
Excellent
Pure Encapsulations Niacinamide | Vitamin B3 Supplement to Support Energy Metabolism, Joint Mobility, and Metabolic Function* | 90 Capsules
Pure Encapsulations

Pure Encapsulations Niacinamide | Vitamin B3 Supplement to Support Energy Metabolism, Joint Mobility, and Metabolic Function* | 90 Capsules

Why we love it
  • Supports healthy metabolism functions.
  • Promotes joint mobility and comfort.
  • No flushing side effects experienced.
Main Highlights
  • Supports Metabolism: Niacinamide is a form of vitamin B3 designed to support carbohydrate metabolism and metabolic function.*
  • Joint Health: Niacinamide may also support healthy joint mobility and comfort.*
  • No Flush Niacin: Niacinamide (vitamin B3) is a precursor of nicotinamide adenine dinucleotide (NAD), essential for oxidation-reduction reactions, nutrient metabolism and ATP synthesis. It does not cause the vasodilatation (“flush”) associated with niacin.*
  • Pure Quality: Our supplements are made with only premium ingredients sourced from trusted suppliers and guided by our nutritional experts, then carefully manufactured and tested to verify their potency and purity.
  • Pure Difference: What makes us different isn't just our process or what goes into our supplements -- what we leave out matters, too. Pure Encapsulations products are FREE FROM wheat, eggs, tree nuts & peanuts, gluten, artificial colors, flavors & sweeteners, coatings and shellacs, GMOs, and unnecessary binders, fillers & preservatives.
8.8
Excellent
Amazon Logo
8
8.7
Excellent
Save 34%
Nature's Bounty Niacin 500mg Flush Free, Cellular Energy Support, Supports Nervous System Health, 120 Capsules
Nature's Bounty

Nature's Bounty Niacin 500mg Flush Free, Cellular Energy Support, Supports Nervous System Health, 120 Capsules

34% Off
Why we love it
  • Energy support from Niacin.
  • Flush-free for comfortable use.
  • Promotes healthy nervous system.
Main Highlights
  • 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
8.7
Excellent
Save 34%
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9
8.7
Excellent
Nutricost Niacin (Vitamin B3) 500mg, 240 Capsules - with Flushing, Non-GMO, Gluten Free
Nutricost

Nutricost Niacin (Vitamin B3) 500mg, 240 Capsules - with Flushing, Non-GMO, Gluten Free

Why we love it
  • Potent Vitamin B3 formulation.
  • Fast release capsules for efficiency.
  • Non-GMO and gluten-free assurance.
Main Highlights
  • Potent 500mg of Niacin (Vitamin B3) Per Capsule
  • Warning: This Product Will Likely Cause the "Niacin Flush." For Non-Flush, try Niacinamide. Consuming On An Empty Stomach May Increase Flush Reaction
  • 240 Capsules of fast release Niacin Per Bottle
  • Non-GMO, Gluten Free, 3rd Party Tested
  • Manufactured in an NSF Certified, GMP Compliant, FDA Registered Facility
8.7
Excellent
Amazon Logo
10
8.7
Excellent
Nutricost Niacinamide (Vitamin B3) 500mg, 240 Capsules - Non-GMO, Gluten Free, Flush Free Vitamin B3
Nutricost

Nutricost Niacinamide (Vitamin B3) 500mg, 240 Capsules - Non-GMO, Gluten Free, Flush Free Vitamin B3

Why we love it
  • High potency with 240 capsules.
  • Gentle formula, no niacin flush.
  • Non-GMO and gluten-free options.
Main Highlights
  • 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 NSF Certified GMP Compliant, FDA Registered Facility
8.7
Excellent
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Related Deals You Might Like for Niacin Supplement

📊We scanned 533 products
🔍
We reviewed the most relevant Niacin Supplement offers across Amazon and leading retailers, covering major brands and models. Our shortlist features trusted names like Micro Ingredients, Vitamatic, Decatela, THORNE, Dr. Berg Nutritionals, Endurance Products, Pure Encapsulations, Nature's Bounty, Nutricost, known for dependable quality and smart design.
⭐
To determine today's best Niacin Supplement, we analyzed 2666 real customer and expert reviews, focusing on satisfaction, real-world performance and long-term reliability. We also weigh each review's relevance, authenticity and freshness for a fair comparison.

Here's what we found:

🏆 #1
Vitamin B3 Niacinamide 500mg Per Capsule, 400 Capsules | 1,000mg Flush Free Niacin Per Serving, Essential B Vitamin Supplement | Non-GMO, Gluten Free

Our overall winner is Vitamin B3 Niacinamide 500mg Per Capsule, 400 Capsules | 1,000mg Flush Free Niacin Per Serving, Essential B Vitamin Supplement | Non-GMO, Gluten Free by Micro Ingredients. It stands out for the right balance of quality, performance and value.

✨ What sets it apart:
✓Flush-free niacinamide benefits.
✓Value pack for six months.
✓Supports energy and skin health.
💎 Best Value
Vitamatic Niacin (Vitamin B3) 500mg,240 Tablets - Non-GMO & Gluten Free

The best value for most shoppers is Vitamatic Niacin (Vitamin B3) 500mg,240 Tablets - Non-GMO & Gluten Free by Vitamatic, with consistently high satisfaction across expert and customer reviews.

💰 Best Deal
Nature's Bounty Niacin 500mg Flush Free, Cellular Energy Support, Supports Nervous System Health, 120 Capsules

The strongest deal right now for Niacin Supplement is Nature's Bounty Niacin 500mg Flush Free, Cellular Energy Support, Supports Nervous System Health, 120 Capsules at Nature's Bounty, currently at 34% off.

🔄Our Niacin Supplement ranking is updated regularly to reflect new releases and price changes—check back for the latest picks and deals.