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While Supplies Last

Niacin Sustained Release

100 Tablets

While Supplies Last
This product is being discontinued. Current lot expires on or after December 2018.

Key Benefits and Actions*

  • Sustained release format may help limit side effects of niacin consumption
  • May help support cellular health and normal energy production
  • May help support healthy metabolism and digestive health
  • May help support healthy skin
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Availability: Out of stock

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Suitable for Vegans and Vegetarians

Free of:

Dairy, Egg, Fish, Shellfish, Tree Nuts, Peanuts, Wheat, Soy

Niacin Sustained-Release by Seeking Health provides 500 mg of niacin, also known as vitamin B3, a nutrient that is naturally produced in the body and is found in many of the foods we eat. Niacin may help support healthy circulation, healthy carbohydrate and fat metabolism, and healthy skin. Because the body cannot store niacin, it requires adequate intake of this important vitamin every day.*

Niacin may support normal mood regulation by relieving any symptoms that could be related to a deficiency of this important vitamin. One of the building blocks of serotonin is the amino acid tryptophan, and one of the building blocks of tryptophan is niacin. Tryptophan also helps maintain healthy levels of niacin within the body. If tryptophan is divided between serotonin production and niacin production, serotonin production may be reduced when niacin levels are inadequate. Supplemental niacin and tryptophan can be beneficial for healthy moods.*

Niacin is important for proper functioning of all cells, including the cells of the brain and nervous system. Niacin has the well-known effect of causing vasodilation, often called the niacin “flush,” which is an opening of small blood vessels (capillaries) for increased blood flow. These are the blood vessels which are of most value in reaching fatty tissues. Healthy blood flow is important for allowing toxins stored in these fatty tissues to be removed into the bloodstream, and processed out of the body. Niacin may also support healthy skin by promoting normal moisture retention, elasticity and tone. Niacin may also help support normal lipid metabolism and healthy cartilage.*

This supplement provides pure niacin in a sustained-release matrix that releases slowly over several hours. The slow release of niacin over several hours helps to reduce the uncomfortable flushing action sometimes experienced with this B vitamin. The scored tablet allows for easier dosage adjustment as needed.*

For a lower dose or more immediate nutrient release, consider our Niacin Capsules or Niacin Lozenges.*

Suggested Use

Take 1 tablet daily with food or as directed by your healthcare professional.


Children and pregnant or lactating women should consult their healthcare practitioner prior to use. Do not use if full-bottle shrinkwrap is broken or missing. Consult with a healthcare professional before use if you are using antibiotics, cholesterol-lowering drugs, blood pressure medications, alpha-inhibitors or other medications. High doses of niacin should only be used under the supervision and direction of a healthcare professional. Niacin may cause a "flush" feeling including tingling, feeling warm, blushing or turning red (usually on the face, ears, neck, or chest). This reaction is more common for individuals who have not used niacin-containing supplements before, or for those who are sensitive to niacin. It usually subsides in a few minutes to a few hours, depending on the individual. You can reduce your likelihood of experiencing that reaction by eating a meal before or very shortly after taking a supplement containing niacin, drinking plenty of water, and making sure that your dose is appropriate. It may be best to start out with only a portion of a serving and gradually work your way up to your desired dose, allowing your system to acclimate to the niacin. We recommend that you consult with a healthcare professional for help determining the best dose of niacin for your individual needs, and that you talk with your practitioner about any side-effects your experience while using niacin.

Serving Size: 1
Servings Per Container: 100

Supplement Facts

Niacin (as niacin USP) 500 mg 2500%
% DV (Daily Value) based on standard 2,000 calorie daily intake
**Daily Value not established

Other Ingredients: Vegetarian stearine, cellulose, silicon dioxide, magnesium stearate, and carboxymethylcellulose sodium.

Additional Info
Additional Info
Learning Center Find product FAQ and more! Click here.
Cost Per Serving $0.11
Delivery Method Sustained/Extended Release Tablet
Tablet Size 3/4"
Storage Store in a cool, dry place (59°F-85°F) away from direct light. Keep out of reach of children.
Age Suitability Adult
Manufactured In USA
Case Quantity 12
Dimensions (in.) Length: 2 / Width: 2 / Height: 3.75
Weight (lb.) 0.2000
Barcode 828054147256
Return Policy 30 Day Returns ― Learn more about our Return Policy.
Customer Reviews (4)
Oh well
This was my favorite niacin. I enjoy the CR version but it’s been discontinued so oh well I guess. Review by Sean-Pablo (Posted on 9/11/2018)
I prefer my supplements to be in capsule form. It's so much easier to swallow. This one is especially great because it is scored and breaks very easily if you just need a little. Since taking this product every day and not just when I thought I might need it, my sleep has improved. Review by Kim (Posted on 3/19/2017)
This has been a HUGE help for overmethylation issues, trapped methyl donors. Part of my protocol that I have been following with a doctor. Review by Merrick (Posted on 11/10/2015)
The Niacin has been helpful in dealing with the side effects of excess methylation I ran into. I cut the tablet into 4ths and took one piece. If it came in a sublingual form I think it would be even better! Review by Diane (Posted on 6/12/2012)
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*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

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