Niacin in Memodyne: Half a Day's Vitamin B3, Not a Brain Booster
Quick answer
Memodyne lists 7.5 mg NE of niacin, 47% of the Daily Value and about half the 14 to 16 mg adults need. That is well under the 35 mg supplement limit and far below the 30 mg where flushing starts. The label does not name the form. No source shows extra niacin helps memory unless you are deficient.
How much niacin is in Memodyne, and is that a lot?
Each capsule lists 7.5 mg NE of niacin, printed as 47% of the Daily Value. That is a normal vitamin amount, about half of what an adult needs in a day, not a megadose.
NE stands for niacin equivalents, the unit used for daily needs. The NIH sets the adult requirement at 16 mg NE for men and 14 mg NE for women, and the upper limit for supplements at 35 mg (NIH ODS, Niacin (health professional)).
| Reference amount | Niacin a day | One Memodyne capsule covers |
|---|---|---|
| Daily Value on US labels | 16 mg | 47% |
| Adult need, men 19+ | 16 mg NE | about 47% |
| Adult need, women 19+ | 14 mg NE | about 54% |
| Enough to prevent pellagra | about 11 mg NE | about two-thirds |
| Upper limit from supplements | 35 mg | about one-fifth |
Unlike the amino acids in the formula, niacin is not far below a studied dose. It sits right in the range of an everyday vitamin pill, which is also why it does very little beyond what food already supplies.
Nicotinic acid or niacinamide: which niacin is in the capsule?
The label does not say. "Niacin" can mean nicotinic acid or nicotinamide (also called niacinamide), the two main forms in supplements, and the panel prints only the general name.
The form changes how it feels, not whether it counts as B3. Both supply the vitamin; they differ in side effects at high doses.
| Form | What the sources say | At 7.5 mg |
|---|---|---|
| Nicotinic acid | 30 to 50 mg or more typically causes flushing | Well under that level |
| Nicotinamide (niacinamide) | Does not cause skin flushing; fewer side effects | No flush expected |
| Inositol hexanicotinate | Sold as "flush free"; about 30% less is absorbed | Not named on the label |
One more mix-up worth clearing: niacin is not nicotine. It is a vitamin, the label says nothing about tobacco, and nothing in the capsule is addictive.
Want the lowest Memodyne price? It comes with the 6-bottle pack.
Best price: $49/bottle when you take 6 ($294). Free shipping on 3+ · 60-day money-back window · Checkout by BuyGoods.
Will 7.5 mg of niacin cause the niacin flush?
Very unlikely. The flush, a red, burning, tingling or itchy feeling on the face, arms and chest, is linked to supplements with 30 mg or more of nicotinic acid (NIH ODS, Niacin (consumer)).
That is four times the label amount, and only if the capsule uses nicotinic acid. The Linus Pauling Institute notes the 35 mg upper limit itself was set to prevent flushing, which tells you how far below it 7.5 mg sits.
If you already take a multivitamin or a B-complex, add its niacin to the 7.5 mg. Staying under 35 mg a day from supplements keeps you inside the limit the NIH set.
Does niacin power every neuron and improve brain microcirculation?
Those are the brand's words, not findings from our sources. Here is each niacin claim set against the label and the NIH and Linus Pauling pages:
- Marketing only
An essential vitamin for the production of NAD+, the molecule that powers the energy machinery inside every neuron
Brand sales pageNiacin is a true vitamin. But none of the fact sheets we read shows that extra niacin changes how neurons work or how well you focus.
- Marketing only
It also improves cerebral microcirculation
Brand sales pageNo opened source says niacin raises blood flow in the brain, at 7.5 mg or at any dose.
- Marketing only
optimizes cellular energy production with Niacin (Vitamin B3)
Brand FAQA general biology idea turned into a product claim. The capsule was never tested for energy.
- On the label
Niacin 7.5 mg NE, 47%
Supplement Facts panelPrinted on the bottle and easy to check against NIH reference amounts.
- Not shown
Niacin form (nicotinic acid or niacinamide)
Label and brand pagesNot stated anywhere we looked.
The same pattern runs through the formula: a real nutrient, a bigger promise. Our Memodyne ingredients overview checks the arginine and citrulline claims the same way.
Is niacin linked to memory at all?
Only through deficiency. The NIH and the Linus Pauling Institute mention memory loss as one symptom of pellagra, the disease of severe niacin shortage, along with headache, fatigue, depression and disorientation (Linus Pauling Institute, Niacin).
Fixing a shortage is not the same as boosting a normal brain. Neither fact sheet discusses niacin for memory, cognitive decline or dementia. The NIH center for complementary health adds that older adults who took B vitamins for a short time did not think any better for it (NCCIH, 7 Things To Know About Supplements and Alzheimer's).
Which foods already give you niacin?
Plenty of ordinary ones. The NIH Office of Dietary Supplements lists poultry, beef, pork and fish; some nuts, legumes and grains; and enriched or fortified foods such as many breads and cereals.
It also says most people in the United States get enough niacin from the foods they eat. For them, 7.5 mg in a capsule is topping up a tank that is usually full already.
Niacin safety at 7.5 mg, and what the label says
The well-known niacin risks belong to big doses. Raised blood sugar is tied to 1,500 mg a day or more of nicotinic acid, two hundred times this amount, and the statin warning to high doses (NIH ODS, Niacin (consumer)). Liver strain is mostly a risk of extended-release nicotinic acid (NIH ODS, Niacin (health professional)).
Two notes do apply. The tuberculosis drugs isoniazid and pyrazinamide can lower niacin levels, so mention any supplement to the doctor treating you. And the label's own caution covers the whole capsule. Tap the numbers:
- Niacin, 7.5 mg NE, 47%. The first line of the panel and the only vitamin in it.
- Calcium, 18 mg, 1.5%. The other nutrient with a Daily Value; a token amount.
- Caution. Pregnant or nursing, under 18 or a known medical condition: ask a physician first.
- Suggested use. One capsule with 8 oz of water, 20 to 30 minutes before a meal.
- FDA statement. The claims on the front have not been evaluated by the FDA.
The larger medicine questions in Memodyne come from arginine and citrulline, not niacin. They are listed on our side effects page, and every line of the panel is explained on the supplement facts page.
Niacin in Memodyne: common questions
How much niacin does Memodyne contain?
7.5 mg NE per capsule, which the label prints as 47% of the Daily Value. That is roughly half of what an adult needs from all sources in a day.
Will the niacin in Memodyne make my face flush?
It is unlikely. The NIH says flushing typically starts at 30 to 50 mg or more of nicotinic acid, four times the label amount or more, and the niacinamide form does not cause flushing at all.
Is niacin the same as nicotine?
No. Niacin is vitamin B3, a nutrient found in ordinary food. Nicotine is the addictive substance in tobacco. The names share a root, nothing more.
Does Memodyne use niacinamide or nicotinic acid?
The label does not say. It prints only "Niacin", a name that can cover either form, and the brand's pages do not name the form either.
Can niacin improve memory?
Only in the sense that a severe shortage, called pellagra, harms memory and treating it helps. We found no study showing that extra niacin sharpens memory in people who are not deficient.
Can I take Memodyne with a multivitamin or B-complex?
Probably, as far as niacin goes, but add up the labels. The upper limit for niacin from supplements is 35 mg a day for adults, and many multivitamins and B-complex products contain niacin too.
What does 47% DV mean on the label?
It compares 7.5 mg with the 16 mg Daily Value used on US labels. It does not mean the capsule fills half of a special brain need; it is the standard nutrition yardstick.
Does niacin increase blood flow to the brain?
The brand says it "improves cerebral microcirculation", but none of the NIH or Linus Pauling pages we read makes that claim for niacin at any dose.
Is 7.5 mg of niacin safe with a statin?
The NIH warning about statins concerns high doses of nicotinic acid, not a nutrient-level amount like this one. Show the label to your pharmacist anyway, since the arginine in the capsule has medicine cautions of its own.
Page check
Written by
Compares each label amount with the doses used in published research, using NIH, FDA and Alzheimer's Association pages.
Reviewed by
Dr. Harald Hampel, MD, PhD, MD, Physician
Medical reviewer. Review date: October 13, 2026.
- Last compared with the label: October 13, 2026
- Facts come from the Supplement Facts panel and the brand pages; health lines come from the sources linked above
- Corrections go to [email protected]; our checking rules are on the standards page