No Flush Niacin 640 mg
by Life Extension · capsule · 100 capsules
- On the market (NIH)
- UPC 7 37870 37310 0
- DSLD label 328602
- Serving 1 capsule
- 100 servings
No Flush Niacin 640 mg by Life Extension lists 4 ingredients, 4 with an amount per serving of 1 capsule, such as 640 mg NE of niacin and 160 mg of inositol. Its current label entered the NIH Dietary Supplement Label Database on May 21, 2025.
What is in No Flush Niacin 640 mg?
Each row as the label prints it, per serving of 1 capsule. The capsule beside an amount places it among every product in the NIH database that lists the same ingredient: the bar is the middle half of their amounts, the line in it the median, the whiskers the 10th and 90th percentiles; the green tick is the FDA Daily Value and the red dashed tick the adult upper limit (IOM).
| Ingredient | Amount | % DV | Among products listing it |
|---|---|---|---|
| NiacinNE (Niacin equivalents) | 640 mg NE | 4,000% | Higher than over 99% of 12,413 products listing niacin (median 20 mg). 18.3 times the adult UL a day. |
| Inositol Hexanicotinate | 800 mg | Higher than 99% of 84 products listing inositol nicotinate (median 285 mg). | |
| Inositol | 160 mg | Higher than 88% of 4,042 products listing inositol (median 30 mg). | |
| Inositol Hexanicotinate | 800 mg |
Source: NIH ODS Dietary Supplement Label Database, label 328602 (entered May 21, 2025), version 9.4.0. See the label on DSLD or its label image (PDF). Amounts are what the maker printed; DSLD does not test products. Daily Values: the FDA's Daily Value page.
Is that a lot?
The rows in the top or bottom tenth of the products that list the same ingredient, and any above the adult upper limit at the most servings a day the directions give:
- At 1 serving a day, the most its directions give, the label lists 640 mg of niacin, 18.3 times the adult Tolerable Upper Intake Level.
- Its 1,600 mg of inositol hexanicotinate (filed by NIH under inositol nicotinate) (2 rows of the label added together) is higher than 99% of the 84 inositol nicotinate products that print an amount.
The NIH database records one serving a day from the label's directions; its % Daily Values are for adults and children 4 or more years of age. The directions as printed are further down this page.
The Tolerable Upper Intake Level is the most of a nutrient per day, from food, water and supplements together, that is likely to pose no risk for almost all adults (Institute of Medicine, 2011). It does not apply under medical supervision. This page compares labels; it is not medical advice.
Sources: amounts from the DSLD label; Daily Values from 21 CFR 101.9(c)(8)(iv); adult upper limits from the Institute of Medicine's DRI summary tables (2011). How positions are computed.
Which products have the closest formulas?
6 products list the very same ingredients; the nearest amounts come first.
- Niacin SEF 250 mgPhysician's Preference · off the market same ingredients
- Fiush-Free Niacin 500 mgProtocol For Life Balance · off the market same ingredients
- Flush-Free Niacin 250 mgDouglas Cooper Co. same ingredients
- Flush-Free Niacin 500 mgLongevity Medical Clinic same ingredients
- Flush-Free Niacin 250 mgNOW same ingredients
- Flush-Free Niacin 500 mgProtocol For Life Balance same ingredients
Source: ingredient lists of every product's current label in DSLD (version 9.4.0); similarity weights each shared ingredient by how rare it is.
What does the label say about taking it?
Quoted from the label as DSLD transcribed it: the maker's words, including any claim about what the product does, which the FDA has not evaluated and PlainVitamins does not endorse.
- Directions
- Directions: Take one (1) capsule with food, or as recommended by a healthcare practitioner.
- Warnings
- Warnings: Keep out of reach of children.
- Do not exceed recommended dose. Do not purchase if outer seal is broken or damaged.
- When using nutritional supplements, please consult with your physician if you are undergoing treatment for a medical condition or if you are pregnant or lactating.
- To report a serious adverse event or obtain product information, contact 1-866-280-2852.
- Read the entire label and follow the directions carefully prior to use.
- Allergens and what it does not contain
- Gluten Free Non GMO LE Certified
- Storage
- Store tightly closed in a cool, dry place.
Source: label statements in DSLD label 328602.
What else is on the label?
Other ingredients: Gelatin, Stearate.
Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): Non GMO LE Certified.
How many labels does No Flush Niacin 640 mg have?
One label is on file, entered on May 21, 2025.
- Label 328602 (current) Entered May 21, 2025 · on the market · 100 capsules · UPC 7 37870 37310 0
DSLD also links this label to: No Flush Niacin (Inositol Hexanicotinate) 800 mg (image difference, same product), No Flush Niacin (Inositol Hexanicotinate) 800 mg (image difference, same product), No Flush Niacin (Inositol Hexanicotinate) 800 mg (image difference, same product).
Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).
Who makes it?
The label names Quality Supplements and Vitamins, Inc. (distributor), Ft. Lauderdale, FL. All Life Extension products.