Top 10 Best iac in 2026

Last Updated - 6/7/2026

🏆Best Choice

Nutricost

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

9.8

ChoiceComparer.com Score

9.8

/ 10

Outstanding

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

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$14.95

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THORNE

THORNE - Niacinamide - 500mg Niacin - Non-Flushing Form of Vitamin B3 - Support Joint Health, Skin Health & Restful Sleep* - Gluten-Free - 180 Capsules

9.7

ChoiceComparer.com Score

9.7

/ 10

Outstanding

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
•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

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$24.00

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aSquared Nutrition

aSquared Nutrition Nicotinamide with Resveratrol - 120 Veggie Capsules - Vitamin B3 500mg (Niacinamide Flush Free) - Supplement Pills to Support NAD, Skin Cell Health & Energy

9.5

ChoiceComparer.com Score

9.5

/ 10

Outstanding

Main highlights

•PROMOTES LONGEVITY: Our maximum strength Nicotinamide supplement contains 500mg of Non-Flush vitamin B3 per vegetable capsule, and is enhanced with 100mg of Resveratrol powder (7% potency yield) to promote cellular health & repair, normal NAD levels, longevity and wellness. Our potent complex contains powerful antioxidants. *
•AMAZING PROPRIETARY FORMULA: Our natural Nicotinamide + Resveratrol formula supports energy levels, and helps boost immunity, brain health & cognition, and may support upregulation of the sirtuin pathway to help combat age related decline in energy levels, cellular & DNA health, & Nicotinamide Adenine Dinucleotide levels. *
•PROMOTES ENERGY PRODUCTION: As we age our energy levels naturally decline. Our unique formula helps your cells synthesize nutrients more effectively to boost energy. Our natural formula contains 120 capsules per bottle, is vegan friendly, Non-GMO, and Gluten Free. Don’t settle for products that only offer 60, 90 or 100 pills per bottle. *
•SUPPORTS NAD LEVELS: Nicotinamide is flush free, and should not be confused with Niacin or nicotinic acid. Our proprietary complex contains 500mg of Nicotinamide & 100mg of Resveratrol powder (7% potency yield) to help activate sirtuin proteins, support normal NAD / NAD+ levels (Nicotinamide adenine dinucleotide), and to support cellular health & longevity. *
•COMMON NAMES & FORMS: Nicotinamide, also known as Niacinamide, is a form of Vitamin B3 that is Non-Flush. It comes in capsules, pills, tablets, soft gels, liquid, drops, gel and powder form. Usually, it is seen in 150mg, 200mg, 250mg, 300mg and 500mg per capsule. Works great with Nicotinamide Riboside, NMN, and CoQ10 (Coenzyme Q10) 400mg. *

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$29.95

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NOW Foods

NOW Niacinamide 500mg,100 Capsules

9.4

ChoiceComparer.com Score

9.4

/ 10

Excellent

Main highlights

•B Complex Vitamin
•Vitamin B-3
•Serving Size: 1 Capsule
•Serving Size: 1 Capsule

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$8.94

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biophix

biophix B-3 Nicotinamide 500 mg 180 Caps - Nicotinic Amide Niacin Natural Flush-Free Vitamin Formula - Supports Skin Cell Health

9.2

ChoiceComparer.com Score

9.2

/ 10

Excellent

Main highlights

•SUPPORT YOUR SKIN’S NATURAL DEFENSE MECHANISMS: Recommended by dermatologists. This valuable supplement is ideal for men, women, and aging individuals with sensitive or susceptible skin.
•HELP SUPPORT THE BODY’S NATURAL RESPONSE TO SKIN BLEMISHES: Nicotinamide can help support your body’s natural response to skin blemishes by supporting the skin’s natural ability to regenerate a smooth outer layer clear of blemishes, red spots, bumps, and warts. Preliminary clinical evidence suggests that nicotinamide may help support the body’s natural ability to control Polymorphous light eruption, a type of photosensitivity.
•SUPPORT YOUR ENERGY LEVELS: Do you suffer from fatigue and low energy levels? There are many, many reasons for this condition that affects so many. One reason could be inside your cells - when they don’t have the necessary nutrients to metabolize energy correctly. Nicotinamide may support the body’s natural mechanisms that improve energy production due to its role as a precursor of NAD, an important molecule involved in energy metabolism.
•NICOTINAMIDE BENEFITS: Nicotinamide is well tolerated. Nicotinamide is a different form of vitamin B3 to nicotinic acid or niacin. Nicotinic acid commonly causes headaches, flushing and low blood pressure, but these side effects are generally not seen with nicotinamide. Preliminary evidence suggests that nicotinamide may support the body’s natural ability to support healthy joint mobility and comfort.
•CUSTOMER SATISFACTION: Our products are manufactured in a US-based NSF GMP registered facility, designed to support your health, happiness, and overall well-being. Please reach out to us with any issues or concerns so we can assist you.

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$26.89

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biophix

biophix B-3 Nicotinamide 500 mg 180 Caps 2 Pack - Nicotinic Amide Niacin Natural Flush-Free Vitamin Formula - Supports Skin Cell Health

9.1

ChoiceComparer.com Score

9.1

/ 10

Excellent

Main highlights

•SUPPORT YOUR SKIN’S NATURAL DEFENSE MECHANISMS: Recommended by dermatologists. This valuable supplement is ideal for men, women, and aging individuals with sensitive or susceptible skin.
•HELP SUPPORT THE BODY’S NATURAL RESPONSE TO SKIN BLEMISHES: Nicotinamide can help support your body’s natural response to skin blemishes by supporting the skin’s natural ability to regenerate a smooth outer layer clear of blemishes, red spots, bumps, and warts. Preliminary clinical evidence suggests that nicotinamide may help support the body’s natural ability to control Polymorphous light eruption, a type of photosensitivity.
•SUPPORT YOUR ENERGY LEVELS: Do you suffer from fatigue and low energy levels? There are many, many reasons for this condition that affects so many. One reason could be inside your cells - when they don’t have the necessary nutrients to metabolize energy correctly. Nicotinamide may support the body’s natural mechanisms that improve energy production due to its role as a precursor of NAD, an important molecule involved in energy metabolism.
•NICOTINAMIDE BENEFITS: Nicotinamide is well tolerated. Nicotinamide is a different form of vitamin B3 to nicotinic acid or niacin. Nicotinic acid commonly causes headaches, flushing and low blood pressure, but these side effects are generally not seen with nicotinamide. Preliminary evidence suggests that nicotinamide may support the body’s natural ability to support healthy joint mobility and comfort.
•CUSTOMER SATISFACTION: Our products are manufactured in a US-based NSF GMP registered facility, designed to support your health, happiness, and overall well-being. Please reach out to us with any issues or concerns so we can assist you.

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$46.89

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Horbäach

Horbäach Nicotinamide 500mg | 180 Capsules | Flush Free Dietary Supplement | Non-GMO and Gluten Free Vitamin

8.9

ChoiceComparer.com Score

8.9

/ 10

Great

Main highlights

•NICOTINAMIDE: An essential B Vitamin also called Niacin, which plays an important role in the body
•ADVANCED SUPPORT: Quick release capsules deliver 500 mg of Niacin (as Niacinamide) per serving
•EXPERTLY CRAFTED: Our professional formula is backed by our commitment to purity and potency
•HORBAACH MANUFACTURERS: Laboratory Tested, Trusted Ingredients, Superior Quality, 100% Guaranteed!
•FREE OF: Gluten, Wheat, Yeast, Milk, Lactose, Soy, Artificial Color, Flavor, Preservatives & Non-GMO

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$9.99

$11.75

-15%

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Natures Craft

Vitamin B3 Niacinamide 500mg Capsules - Mitochondrial Energy and Potent Skin Supplement - AKA Vitamin B3 Niacin 500mg Flush Free and Nicotinamide 500mg - Flush Free Niacin Supplement - 240 Count

8.8

ChoiceComparer.com Score

8.8

/ 10

Great

Main highlights

•Many Names Same Great Product - B3 vitamins go by many names but rest assured our niacinamide supplement is packed with pure and simple nicotinamide 500 mg a more optimized form of no flush niacin
•Potent Supplement - Try our potent antioxidant niacin flush free energy supplement and feel rejuvenated with the water-soluble active form of vitamin B3 that supports energy levels from within
•Vitamin B for Skin - Niacinamide is a great way to protect your skin from within by supporting the skin barrier by enhancing the immune system and supporting mitochondria for faster cell cycles
•Brain Health Supplement - Nicotinamide is a a great brain supplement for focus, energy, memory & clarity as it can help promote brain enzymes and cognitive function as one of the top brain vitamins
•Natures Craft Quality - We are proud to be a leading name in specialty supplements because we care about providing superior quality products to consumers like you who deserve nothing but the best

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$29.99

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DEAL SUPPLEMENT

Vitamin B3 Nicotinamide 1,000mg Per Serving – 500 Capsules, Flush Free Niacin, Essential B3 – Supports Healthy Skin & Energy Production – Non-GMO

8.6

ChoiceComparer.com Score

8.6

/ 10

Good

Main highlights

•Special Features – Bioavailable water-soluble nicotinamide in easy-to-consume powder filled capsules, 1,000mg extra strength serving, flush free non-niacin form, essential vitamin B3 micronutrient benefits.
•Benefits & Use – Enjoy benefits that combat any flushing effects associated with niacin, you may notice support for skin complexion, energy production, brain, and heart health in both men and women.
•Supply & Servings – 500 capsules per bottle, 2 capsule serving size, offers 1,000mg nicotinamide (not niacin) per serving (500mg per capsule), long lasting 250-day supply.
•Purpose – Naturally replenish B vitamin levels with niacin as nicotinamide, this form is designed to not cause the skin to dilate which bypasses any red flushing or itching sensations.
•Quality Ensured – Non-GMO ingredients that are 3rd party lab tested and passed. Made without gluten, dairy, eggs, peanuts, soy, wheat, yeast, and tree nuts.

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$21.95

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Dr. Valerie Nelson

Dr. Valerie Nelson Nicotinamide 500 mg - Vitamin B3 – Energy; Cell & Skin Health. Value Priced - Flush-Free - 120 Veggie Caps by Foxxy Doc

8.5

ChoiceComparer.com Score

8.5

/ 10

Good

Main highlights

•VITAMINS FOR SKIN AND CELLS - Nicotinamide, also known as niacinamide, is a form of Vitamin B3 known to be beneficial for skin and cells. It helps to restore the skin barrier and increase hydration. It also helps protect the cellular systems from damage and helps with your energy levels. Additionally, it may help to improve cognitive function.
•ENERGY AND VITALITY - Nicotinamide is beneficial for energy and vitality because it helps with the metabolism of carbohydrates and fats, which can help to increase energy levels because as aging progresses, energy levels decline. It also helps to improve mental alertness and concentration, reduce fatigue, and support the body’s natural defenses.
•ABSORBS MORE QUICKLY: Veggie caps offer a convenient way to take supplements. They are easier to swallow and are less likely to cause any digestive discomfort. Vegan caps dissolve in the stomach instead of the intestines, meaning that the body can absorb the nutrients more quickly. Additionally, veggie caps are made from plant-based ingredients.
•500mg PER SERVING - Higher doses of Nicotinamide can help to optimize and balance the body’s energy levels and help to protect the skin from damage. It also helps to boost the immune system and can help to improve the overall health of the body. Our Nicotinamide formulation is anti-aging; Vegan and Gluten Free.
•FORMULATED BY BOARD CERTIFIED NATURAL DOCTOR, Dr. Valerie Nelson - Made in the USA, in a GMP-certified lab which meets the highest standards of production and safety so you are sure that it passes the highest quality control and safety, and made with quality ingredients in a vegan capsule.

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$16.99

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