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View this orderFlash Deals are limited time, limited quantity promotions, so act fast! Limited to: 1 unit of 1 flash deal product per order. If you order more than one unit or re-order or order other flash deals, you will pay our regular low price. Flash Deals are ineligible from all other promotions.
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View this orderThe length of time for the expiration date or "best used before" date depends on the type of product, as well as the brand.
Perishable items (such as flax oils or certain probiotics) generally have shorter expiration dates. Although our warehouse is fully air-conditioned, these more fragile items are put in cold storage (freezer or refrigeration unit) for maximum freshness.
Our receiving department does its best to verify and then enter the correct expiration dates for all incoming products. However, discrepancies do occur from time to time. This being said, the exceptionally high turnover at iHerb ensures that our inventory is among the freshest in the industry.
Helps Support Cardiovascular Health Low Flush
Doctor's Best Sustained-Release Niacin with niaXtend® provides niacin in a form that helps minimize the incidence of uncomfortable skin flushing that is commonly associated with niacin. Approximately 200 coenzymes are comprised of niacin that play pivotal roles in metabolism and energy production within the body. niaXtend® has been tested to encourage a favorable blood lipid profile. Research suggests that niacin, in combination with a well-balanced diet, may help maintain healthy cholesterol levels that are already within the normal range.
Adult Use: As a dietary supplement, take 1 tablet daily with food, or as recommended by a nutritionally-informed physician.
Vegetable waxes (rice bran and/or carnauba wax), stearic acid, magnesium stearate (vegetable source), silica.
If you are pregnant, nursing, have a medical condition, or taking medication, consult your physician before taking this product. Temporary flushing such as warmth, itching or redness of the skin, are common side effects that may occur upon initial use. These effects may worsen if you drink alcohol or hot beverages shortly after taking niacin. Do not take more than 500 mg per day (one tablet) except under the supervision of a physician. Liver damage and jaundice are risks with high doses of niacin. Avoid high doses of niacin if you have a liver of kidney disorder.
Store in a cool dry place.
While iHerb strives to ensure the accuracy of its product images and information, some manufacturing changes to packaging and/or ingredients may be pending update on our site. Although items may occasionally ship with alternate packaging, freshness is always guaranteed. We recommend that you read labels, warnings and directions of all products before use and not rely solely on the information provided by iHerb.
| Supplement Facts | ||
| Serving Size: 1 Tablet | ||
| Servings Per Container: 120 | ||
| Amount Per Serving | % Daily Value | |
| Niacin (as nicotinic acid) | 500 mg | 3125% |
| † Daily Value not established. | ||
