Niacin Supplement | Vitamin B3 Supplement | Seeking Health Skip to content

Niacin

Original price $22 - Original price $132
Original price $66
$22
$22.00 - $112.20
Current price $22

Key Benefits:†

  • Bioavailable niacin supplement
  • Healthy aging, skin, and energy support
  • Supports healthy metabolism and cholesterol levels
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High End Ingredients

Brain fog, skin issues, digestive problems, and some mental disorders are associated with niacin deficiency.

However, niacin’s most notable role is supporting heart health via normal cholesterol regulation.

Niacin contains 50 mg NE of pure niacin (as nicotinic acid) per single capsule serving.

Niacin capsules by Seeking Health provide niacin as nicotinic acid. This pure form of niacin, unlike other forms (e.g., niacinamide or inositol hexanicotinate), has powerful benefits for cardiovascular health. Each convenient capsule contains 50 mg NE (niacin equivalents) of niacin, also known as vitamin B3.

Niacin plays significant roles in your brain, gut, skin, cardiovascular system, and DNA. Niacin needs increase during stress, injury, and sunlight exposure. Because the body cannot store niacin, it requires adequate intake of this critical vitamin daily.

Niacin is vital for the proper functioning of all cells. In particular, brain and nervous system cells require niacin for serotonin production. As a precursor of both tryptophan and serotonin, niacin supports a healthy mood.

Niacin supports healthy aging by acting as an antioxidant and aiding in normal DNA repair.

Niacin is a building block for NADH/NAD+ and NADPH/NADP+. These compounds are used by cells to make energy. Niacin also supports healthy digestion. It helps your body break down and produce energy from carbohydrates, proteins, and fats. Digestive issues are one of the first signs of niacin deficiency.

Niacin has the well-known effect of causing vasodilation, often called the niacin “flush.” This causes small blood vessels to open for increased blood flow. Healthy blood flow is important for cardiovascular health. It also helps with the normal removal of toxins stored in fatty tissues into the bloodstream, so they can be removed from the body.

Niacin in the form of nicotinic acid has a well-established positive effect on lipid levels. It may support healthy HDL and LDL cholesterol levels and overall cardiovascular health.

Niacin also supports healthy skin by supporting normal moisture retention, elasticity, and tone. Niacin may also support healthy cartilage.

Niacin metabolism requires a lot of methyl groups. Its activity as a ‘methyl consumer’ may help reduce the side effects of high-dose methylated nutrients.

Niacin (as nicotinic acid) supports:

  • Cardiovascular health
  • Energy production
  • Healthy metabolism and weight management
  • Detoxification
  • Digestive health
  • Skin and cartilage health
  • Positive mood and cognition
  • NAD+ and NADPH levels
  • Tryptophan and serotonin levels
  • Normal cholesterol levels
  • Side effects from methylated nutrients

Niacin capsules by Seeking Health are gluten-free and dairy-free. They are also free from artificial colors, flavors, preservatives, GMO markers, and common allergens.

Support healthy vitamin B3 levels today with Niacin capsules by Seeking Health.

Key Ingredients

Inside the Uncompromising Quality of Our Ingredients

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  • Nicotinic Acid
    This pure form of niacin supports healthy cholesterol levels, cardiovascular health, cognitive function, methyl group side effects, and energy production.

Suggested Use

As needed, take 1 capsule with food, any time of day or night. Use as directed by your healthcare provider.

Note: Niacin may naturally contribute to warm, flushing, pins and needles sensations. This is a healthy response and known as a Niacin Flush. Typically, flushing occurs with the first serving or two and then ceases after that. Taking Niacin with food greatly reduces flushing.

Suitable for

Bariatric, methyl sensitive, breastfeeding, pregnancy, vegetarian, vegan, ages 4 and up

Delivery Method

Capsules

Age Suitability

Adults, ages 4 and up

How to Store

Keep closed in a cool, dry place out of reach by children.

What our customers say

Real reviews from real customers.

4.8
Rated 4.8 out of 5 stars
Based on 75 reviews
Total 5 star reviews: 68 Total 4 star reviews: 4 Total 3 star reviews: 1 Total 2 star reviews: 1 Total 1 star reviews: 1
95%would recommend this product
Reviews Summary
Customers say this supplement's lower dosage format is particularly appealing, allowing for flexible intake throughout the day. Many reviews mention experiencing a mild flush sensation, which varies in intensity. The capsule form receives mixed feedback - while most find it convenient, some prefer lozenges. Users appreciate the ability to adjust serving sizes based on their needs. Common feedback includes positive experiences with the product quality, though a few note occasional sensitivity reactions.
Customers Talked About
Rating
Ratings
75 reviews
  • K
    Kristin
    Verified Buyer
    I do not recommend this product
    Rated 1 out of 5 stars
    2 days ago
    Warning ⚠️ label needs to be bigger

    I ordered bc of all the benefits and to help with my cholesterol so took 1 capsule with dinner as directed and within 15 minutes I started to feel like my face, neck, arms, hands, chest, back & torso were burning from the inside out. I started swelling on my face and neck and didn’t look recognizable. I was terrified that my throat would close and panicked. I had to call ***** myself to urgent care.

    I took this supplement with other dinner supplements and thought nothing of it.

    If the warning label had been more clear/ bigger I would have seen it and I would have either not purchased or would have at the very least been prepared.

    I am a very mindful and health conscious individual. This was scary and you need to make it known that the side effects are real and are serious.

    SH Profile picture for Seeking Health
    Seeking Health
    22 seconds ago

    Kristin,

    Thank you for your review. We are so glad you are doing okay, and we sincerely appreciate you sharing your experience with us.

    We are truly sorry to hear that your body reacted the way it did, and we completely understand how unsettling that must have been. Your feedback means a lot to us, and we will absolutely be passing along your suggestion about the warning label size and visibility to our product team. Making sure our customers feel informed and prepared is something we care deeply about, and your input helps us do that better.

    We also want to acknowledge that you approached this thoughtfully and with care — this was not a matter of carelessness on your part at all. Everyone's body responds differently to supplements, and we appreciate your patience in sharing this so openly.

    Please don't hesitate to reach out to our customer care team directly if there is anything we can do for you. Thank you again for helping us improve — we are grateful for customers like you.

  • EJ Profile picture for Erin J. H.facebook logo
    Erin J. H.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    2 weeks ago
    It's All About the Flush

    Excellent niacin supplement. Does just what it should - gives me a flush at a certain dosage. Then I can slowly work up to a higher dosage. Love that these are 50 mg which lets me control dosing at a granular level. Thank you for all your research that helped me learn how to use this product for the betterment of my health!

  • E
    Elle
    I recommend this product
    Rated 5 out of 5 stars
    3 weeks ago
    Niacin

    I love this brand, use it with the pulse method when needed