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Source Naturals, No-Flush Niacin, 500 mg, 60 Tablets

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In Stock
  • Expiration Date: Apr 2020
  • Shipping Weight: 0.18 lbs (0.08 kg)
  • Product Code: SNS-00921
  • UPC Code: 021078009214
  • Package Quantity: 60 Tablets
  • Dimensions: 1.8 x 1.8 x 3.3 in, 0.15 lbs (0.07 kg)
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Product Overview


  • Dietary Supplement
  • B-3 for Energy & Cardiovascular Health

Niacin plays an essential role in the activities of various enzymes involved in the metabolism of carbohydrates and fats, the functioning of the nervous system and digestive systems, the manufacturing of sex hormones and cholesterol, and the maintenance of healthy skin. Inositol hexanicotinate functions as niacin without the characteristic "flush".

Suggested Use

1 tablet daily.

Other Ingredients

Sorbitol, stearic acid, modified cellulose gum, silica, and magnesium stearate.

Suitable for vegetarians: Contains no yeast, dairy, egg, gluten, soy or wheat. Contains no sugar, starch, salt, preservatives or artificial color, flavor or fragrance.


Note: If you are pregnant, may become pregnant, or breastfeeding, consult your health care professional before using this product.

Do not use if either tamper-evident seal is broken or missing. Keep out of the reach of children.

Supplement Facts
Serving Size: 1 Tablet
  Amount Per Serving %DV
Niacin (as inositol hexanicotinate) 500 mg 2,500%
Inositol (as inositol hexanicotinate) 142 mg
†Daily Value not established.
iHerb Customer Reviews

Helps with energy and to keep mosquitoes from biting

Posted by 5350635586649582137 on May 01, 2015

I take niacin once a day. It helps with my energy level and also mosquitoes don't like it, so it's very rare that I get mosquito bites. If I take 500 mg a day. Non-flushing is also a huge plus. This brand is a great price!

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Great numbers

Posted by Kajunhunterla on Sep 06, 2011

If u are not a big fan of statins for lowering your numbers give your doc a shock with one of these in the morning and one before bed time. My cholesterol droped 50 plus points and my doc was a bit shocked,, to learn I had not been taking my prescribed script of statins. I also cut out fried foods, meats, and ate more fruit and veggies. Great product the best and one of the best companies out there. Really are no flush too.

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No flush; honest.

Posted by Reviewer1216218 on Aug 29, 2011

I'm still alive so it must be working.

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I have no idea what that should be

Posted by Reviewer1788220 on Aug 28, 2011

arrived after two weeks. No Problems

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Posted by Reviewer1820561 on Jan 11, 2011

My husband has been taking this for years to keep his cholesterol in check.

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