Best Swanson Vitamin B3 Niacin Supplements in 2026

Heart Health: Magnesium activates the enzymes necessary for a number of physiological functions, including neuromuscular contractions, cardiac function, and the regulation of the acid-alkaline balance in the body.*

Overall Health & Nutrient Metabolism: This vital mineral helps the metabolism and utilization of many essential nutrients, including vitamin B6, vitamin C, and vitamin E.*

Energy & Bone Support: Magnesium is necessary for the metabolism of carbohydrates, amino acids as well as for energy production and the utilization of calcium, phosphorus, sodium and potassium.*

240 Capsules of Niacinamide Per bottle

500mg of Vitamin B3 (Niacinamide) Per Capsule

Get The Benefits of Vitamin B3 Without The "Niacin Flush"

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

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.*

NATURAL WELLNESS SUPPORT: Swanson's B-50 Complex harnesses the power of essential vitamins to support cardiovascular health, energy support, metabolism support, stress support, and more! Support overall wellness with a natural formula you can trust.

POWERFULLY PURE: Our supplement delivers a blend of B vitamins including Vitamin B3 (niacin), B9 (folate), B12 (cyanocobalamin), and more in an easy-to-swallow capsule you can take daily! Our formula is created for safe and effective support.

DOSAGE INSTRUCTIONS: Our wellness supplements offer everyday solutions for an enhanced mind, body, and home using only the purest ingredients. For best results, take one capsule, once a day.

NATURAL STRESS SUPPORT: Along with the help of Vitamin C, Swanson's powerful B-Complex is specially formulated to help replenish nutrients that get lost during times of stress, delivering them during times of need.

POWERFULLY PURE: Our stress support supplement features a powerful blend, delivering 25mg Thiamin, 25mg Riboflavin, 25mg Vitamin B6, and 125mcg Vitamin B12, and 500mg Vitamin C, all working together to help you feel your best.

DOSAGE INSTRUCTIONS: Our wellness supplements offer everyday solutions for an enhanced mind, body, and home using only the purest ingredients. For best results, take one capsule one to two times per day with water.

Supports Energy Metabolism; Niacin (also known as vitamin B3) is a water-soluble vitamin and is part of the B Complex; It is required for the metabolism of carbohydrates and protein into energy

Product Note: Exposure to heat or sunlight may lead to melting/damage of product. Hence customers are expected to be available during the product delivery

Cardiovascular Support; Niacin supports cardiovascular health, promotes increased blood flow, and supports the health of the nervous system

500 mg tablets

Product Note: Exposure to heat or sunlight may lead to melting/damage of product. Hence customers are expected to be available during the product delivery

Promotes healthy tissues

Vitamin B3 Niacin: A water-soluble vitamin with an important role in cellular metabolism

Cholesterol Supplements: Niacin has an impressive record of cholesterol metabolism beneficial effects

Niacin Supplement: Niacin has a very long history of clinical use in cardiovascular health support

Niacin Supplement – Niacin, or Vitamin B-3, is a necessary part of the body's pathway for converting carbohydrates, fats, and proteins into energy.

Must-Have for Metabolism – Made with 500 mg of Niacin from Inositol Hexaniacinate, this Niacin formula may support circulatory health and energy production.

Non Flushing – This flush-free form delivers the many benefits of Niacin without the uncomfortable warm burning or itching sensation that some Niacin supplements can cause.

Pack of 2, Each is 60 Count, Total 120 Softgels

Nature Made’s Flush-Free Niacin is an important B vitamin source that helps support general blood vessel and circulatory health.

This is flush-free niacin product which is appropriate for general circulatory function and may not provide the same type of benefits as a regular niacin product.

HEART & ENERGY SUPPORT: Swanson's Niacinamide supplement is a versatile form of vitamin B3 supporting joint health, heart health, and carbohydrate metabolism to aid energy production. All with natural ingredients you can trust.

POWERFULLY PURE: Our cardiovascular support supplement delivers 250mg of niacinamide in each easy-to-swallow capsule. Our formula is specially created for safe and effective wellness support.

DOSAGE INSTRUCTIONS: Our wellness supplements offer everyday solutions for an enhanced mind, body, and home using only the purest ingredients. For best results, take one capsule, once a day.

𝗞𝗘𝗧𝗢 𝗘𝗡𝗘𝗥𝗚𝗬 - This supplement is packed with a spectrum of multivitamins like A, E, C, D, K1 and almost all the B vitamins. It has also been enhanced with Magnesium, Potassium, Alpha-lipoic acid, Nutritional Yeast and a proprietary whole food blend. Includes 60 capsules

𝗨𝗦𝗔 𝗚𝗠𝗣 𝗖𝗘𝗥𝗧𝗜𝗙𝗜𝗘𝗗 𝗠𝗔𝗡𝗨𝗙𝗔𝗖𝗧𝗨𝗥𝗜𝗡𝗚 - Our state-of-the-art manufacturing facilities are located in the US and are staffed with highly trained individuals who formulate superior products. Being certified under US laws and regulations (GMP Certified), these facilities are uncompromising when it comes to cleanliness and quality control.

𝗜𝗡𝗖𝗥𝗘𝗗𝗜𝗕𝗟𝗘 𝗜𝗡𝗚𝗥𝗘𝗗𝗜𝗘𝗡𝗧𝗦 - We're sorry to say it, but if you’re looking for cheap, you’re in the wrong place. We search far and wide, domestic and international, to provide high-quality ingredients for which your body will thank you. Unfortunately, getting the best ingredients from domestic and international farms can come at a higher-than-normal cost. If quality, satisfaction, and results are essential to you, you’re in the right place!

Provides a flush-free form of niacin to help support cholestrol levels already within normal limits

in fat and cholesterol metabolism, which can have an impact on circulation

Helps in the raising of the beneficail high density lipoprotein (HDL) cholesterol

HELP FIGHT FATIGUE: NADH helps to deliver a powerful burst of energy to help up fight fatigue by helping stimulate brain transmitters dopamine and norepinephrine.

IMPROVE OVERALL HEALTH: Increase energy and improve memory, mental focus and clarity with our 20mg of fast acting oral absorption lozenge. NADH also acts to improve stamina and endurance with quicker recovery.

DOSAGE INSTRUCTIONS: Our wellness supplements offer everyday solutions for an enhanced mind, body, and home using only the purest ingredients. For best results, place one lozenge under the tongue and allow to dissolve.

HIGHER ENERGY LEVELS, IMPROVED COGNITIVE FUNCTION, AND HEART HEALTH- Niacin is one of the B vitamins (B3) and boasts various health benefits. Vitamin B3 Niacin also supports energy production, improves cognitive function, protects skin cells, and promotes better heart health. Our B3 Vitamin 500mg supplements also help to relieve various joint pain issues.

TIME RELEASE FORMULATION FOR OPTIMUM ABSORPTION- Our fine quality slow-release Niacin supplements boast an all-natural superior formula as it uses an advanced manufacturing technique that allows nutrients to be released slowly over the period of 2 to 4 hours. This, in turn, promotes optimum absorption and utilization of nutrients allowing you to get the most out of this useful B3 Niacin supplement.

BPA FREE, RECYCLABLE GLASS BOTTLES- Cheap plastic bottles are harmful to your health. We seal your supplements in amber glass bottles with heat-sealed sleeves and best by dates to ensure the safest and purest product available. Unlike some other supplement manufacturers, our bottles are fully recyclable. Each bottle contains 100 tablets that are easy to swallow, Gluten Free and Vegetarian.

Discovering NAD+ and Tru Niagen for the first time? Tru Niagen 100mg allows you to ease into using our product and see how it works for you. The recommended daily serving is 300mg (and most of our consumers respond well to this), but you can start with less and track what you notice to find the amount that’s best for your body—you’re in total control of your NAD-boosting experience.

We’re all unique. With Tru Niagen 100mg, you can start your journey toward healthier aging at a serving size that’s right for you. NAD+ (nicotinamide adenine dinucleotide) is a coenzyme vital to all living organisms as it’s crucial in powering the 37.2 trillion cells in your body so they can function well. Your NAD+ levels decline as you age, especially between 40 and 60. Tru Niagen is a scientifically proven way to get those NAD+ levels up again and help you take back some of your former glory.

Feel free to start at just 100mg, and add more as you get comfortable. You might stick with that amount, or you might feel best taking 300mg, or you might want to take even more. Studies have shown a more pronounced boost in NAD+ levels from taking as much as 1,000mg daily, and Tru Niagen is safe to consume up to 2,000mg per day.

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

Product Note: Exposure to heat or sunlight may lead to melting/damage of product. Hence customers are expected to be available during the product delivery

Energy metabolism; Niacin is required for the metabolism of carbohydrates and protein into energy

GNC Niacin 500 mg Supports a healthy blood lipid profile*

Supports energy metabolism*

100 vegetarian tablets

NIACIN SUPPLEMENT: Receive exceptional purity, potency, and quality from this essential vitamin!

HIGH POTENCY: Delivers 1,000 mg of Niacin (as Nicotinic Acid) per serving.

EXPERTLY CRAFTED: Our professional formula is backed by our commitment to purity and potency

✔️One of Essential Vitamins - Vitamin B3, one of Vitamin Bs, is one of the essential daily vitamins for daily intake. Our Niacin powder is a great souce of Vitamin B3 and it's important for body.* Take our Niacin capsules with flushing, which is pure and gluten free, for daily vitamin B intake!

🧠 Supports Brain Health - Niacin is a nutrient for overall health.* Our Niacin with Flushing capsules, or Niacin 500mg, is one of the most essential functions to the brain, as well as supports energy.* Get your daily dose of Vitamin B3 with our Niacin with Flushing capsules!

✨ Niacin with Flushing - When you take niacin, there may be an experience called "flush" as your body reacts to this vitamin.* This is normal and indicates that the niacin is working. Our Niacin capsules, or Niacin 500mg capsules, may cause flushing. Consult your physician before taking it.