Ingredients
Memodyne Ingredients: The Seven Lines in Each Capsule
Memodyne lists seven ingredients, each with its own printed amount.
Each capsule holds niacin 7.5 mg NE, calcium 18 mg, L-arginine 200 mg, L-arginine AKG 200 mg, L-citrulline HCl 100 mg, L-citrulline malate 100 mg and beta-alanine 40 mg.
To see the panel as printed, read the Supplement Facts page.
Written by the Memodyne editorial teamUpdated
The panel
What ingredients are in Memodyne?
Seven lines, each with its own milligram amount. Four of them are forms of just two amino acids.
The panel names niacin, calcium, a pair of L-arginine lines, a pair of L-citrulline lines and beta-alanine. Nothing hides behind a blend name.
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01
Niacin (vitamin B3)
Vitamin B3; form not given · Vitamin
A B vitamin, close to half the Daily Value
Evidence: Matters only if you are shortStudied atAdult need 14-16 mg NE; supplement ceiling 35 mg a day
Watch forAdd it to the niacin in your multivitamin; nicotinic acid flushes from about 30-50 mg.
Full profile -
02
Calcium
Calcium carbonate · Mineral
Small mineral line on the panel
Evidence: Trace amountStudied at18 mg is a sliver of the 1,300 mg Daily Value
Watch forToo little to shift your daily calcium.
More in the overview -
03
L-arginine
Amino acid · Amino acid
Raw material for nitric oxide
Evidence: No memory evidenceStudied atExercise research: 2-20 g a day; Mayo lists no memory use
Watch forSkip after a recent heart attack; can drop blood pressure; check heart, blood pressure and ED medicines first.
Full profile -
04
L-arginine AKG
Arginine alpha-ketoglutarate, 2:1 · Amino acid salt
The second arginine line
Evidence: No memory evidenceStudied atArginine paired with alpha-ketoglutarate
Watch forShares the arginine cautions; both lines add up to 400 mg.
Full profile -
05
L-citrulline
Amino acid · Amino acid
Converted to arginine in the body
Evidence: No memory evidenceStudied atExercise research used 3-8 g; ODS finds weak support
Watch forStomach upset in some studies; safety over months is not well tested.
Full profile -
06
L-citrulline malate
Citrulline with malic acid · Amino acid salt
The second citrulline line
Evidence: No memory evidenceStudied atOne weightlifting trial used 8 g
Watch forSame notes as L-citrulline; both lines add up to 200 mg.
Full profile -
07
Beta-alanine
Amino acid · Amino acid
Workout amino acid known for skin tingle
Evidence: No memory evidenceStudied atSports research: 1.6-6.4 g a day for up to 8 weeks
Watch forTingle starts around 800 mg in one dose; 40 mg is well below it.
Full profile
Full profiles: L-arginine, L-citrulline and beta-alanine.
Amounts
How much of each Memodyne ingredient is in one capsule?
Milligrams on the bottle, grams in the studies.
| Ingredient | Listed | Per capsule | Amount used in research | Evidence |
|---|---|---|---|---|
| Niacin | 1 of 7 | 7.5 mg NE (47% DV) | Adult need 14-16 mg NE; supplement ceiling 35 mg a day (NIH ODS, Niacin) | Matters only if you are short |
| Calcium (as Calcium Carbonate) | 2 of 7 | 18 mg (1.5% DV) | 18 mg is a sliver of the 1,300 mg Daily Value | Trace amount |
| L-Arginine (base) | 3 of 7 | 200 mg | Exercise research: 2-20 g a day; Mayo lists no memory use (NIH ODS, Exercise supplements) (Mayo Clinic, L-arginine) | No memory evidence |
| L-Arginine AKG 2:1 Extract | 4 of 7 | 200 mg | Arginine paired with alpha-ketoglutarate (NIH ODS, Exercise supplements) (Mayo Clinic, L-arginine) | No memory evidence |
| L-Citrulline HCl | 5 of 7 | 100 mg | Exercise research used 3-8 g; ODS finds weak support (NIH ODS, Exercise supplements) | No memory evidence |
| L-Citrulline Malate | 6 of 7 | 100 mg | One weightlifting trial used 8 g (NIH ODS, Exercise supplements) | No memory evidence |
| Beta Alanine | 7 of 7 | 40 mg | Sports research: 1.6-6.4 g a day for up to 8 weeks (NIH ODS, Exercise supplements) | No memory evidence |
Arginine studies started at 2 grams a day; the two lines here total 400 mg (NIH ODS, Exercise supplements). Citrulline totals 200 mg, roughly one-fifteenth of the smallest citrulline dose tested. Beta-alanine, at 40 mg, sits near one-fortieth of its lowest studied amount.
Label vs web
Why do some Memodyne review pages list different ingredients?
They describe a label that is not on the bottle.
Some review sites print a list of familiar memory herbs. The panel carries none of them.
| Item | Some review pages | The real label |
|---|---|---|
| Bacopa monnieri | Listed | Not on the label |
| Ginkgo biloba | Listed | Not on the label |
| Huperzine A | Listed | Not on the label |
| Phosphatidylserine, L-theanine, lion's mane | Listed on at least one page | Not on the label |
| Arginine, citrulline, beta-alanine, niacin | Often missing | Printed with amounts |
| Name on the bottle | A "labs" company | Distributed by Gex Corporation LLP, Ogden, UT |
If a page shows herbs, it describes some other product. How those lists spread.
Double lines
Why does Memodyne print arginine and citrulline twice?
The bottle gives no reason, so we offer none. We can explain the names.
Base and AKG 2:1
"Base" means plain L-arginine. AKG is arginine paired with alpha-ketoglutarate, a compound your body also makes. "2:1" is the ratio of that pairing.
HCl and malate
HCl is a hydrochloride salt. Malate is citrulline joined to malic acid, the form one weightlifting trial gave at 8 g (NIH ODS, Exercise supplements).
The partner molecules add weight. So 400 mg of arginine ingredients holds somewhat less arginine itself, and the citrulline pair works the same way. With no split printed, an exact figure is impossible.

Research focus
What are Memodyne's amino acids usually studied for?
Exercise, circulation and the heart. Memory is absent from our health sources.

Heart and vessels
Mayo Clinic reviews it for angina, high blood pressure and leg artery disease, with no memory use (Mayo Clinic, L-arginine).
Workouts
Gram-dose sports trials were mixed, and the NIH finds the support weak (NIH ODS, Exercise supplements).
Intense bursts
Tested at grams daily for hard exercise, with uneven findings (NIH ODS, Exercise supplements).
Arginine feeds the body's nitric oxide supply, which relaxes blood vessels. Yet athletes taking grams of it usually showed no change in nitric oxide or circulation (NIH ODS, Exercise supplements). No trial of Memodyne has checked brain blood flow. See the idea behind the formula.

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Order nowVitamin and mineral
What do the niacin and calcium lines add?
Niacin covers close to half a day's need. Calcium is a token amount.
Niacin, 7.5 mg NE
Niacin is vitamin B3, and 7.5 mg NE (niacin equivalents) equals 47% of the Daily Value (NIH ODS, Niacin). Severe shortage can cause memory loss, and extra niacin helps memory only then. The label skips the form. See the niacin profile.
Calcium, 18 mg
Calcium appears as calcium carbonate, 18 mg, or 1.5% of the Daily Value per the label. That will not move your daily total, which is why it has no profile of its own.
Shell and fillers
What else is in a Memodyne capsule?
A shell and two flow aids.
- Hypromellose: a cellulose shell made from plants, used in place of gelatin.
- Vegetable stearate: a plant fat that keeps powder from sticking to machines.
- Silicon dioxide: a fine mineral powder that prevents clumping.
No plant source is given for the stearate. With food allergies, show the panel to your pharmacist before ordering.
Safety
Which Memodyne ingredient needs the most care?
L-arginine, because it acts on blood vessels.
Arginine carries the real drug interactions. Mayo Clinic says to skip it if you recently had a heart attack. Combined with pressure tablets, nitrate heart drugs or sildenafil, it may send blood pressure too low (Mayo Clinic, L-arginine).
Do this if you use a blood thinner, diabetes medicine, a potassium-sparing water pill or any heart drug. Keep taking your prescribed medicine.
Beta-alanine tingle begins near 800 mg in one dose, twenty times this amount (NIH ODS, Exercise supplements). Count niacin from your multivitamin too. Details per line: side effects guide.
By the numbers
Memodyne's panel at a glance
Directions, caution and distributor: Supplement Facts breakdown.
FAQ
Memodyne ingredients FAQ
Why does a memory formula use nitric oxide amino acids?
The seller connects arginine and citrulline to brain blood flow, since the body builds nitric oxide from them. Gram-dose exercise studies mostly found no nitric oxide rise (NIH ODS, Exercise supplements), and nobody has tested Memodyne for memory.
How much real arginine is in a Memodyne capsule?
Somewhat under 400 mg. Plain arginine supplies 200 mg, while the AKG line shares its weight with alpha-ketoglutarate. The panel prints no split, so an exact total cannot be given.
How much beta-alanine does Memodyne have?
40 mg per capsule, the last line on the panel. Researchers used 1.6 to 6.4 grams a day for exercise (NIH ODS, Exercise supplements), so this is tiny, and far below the dose tied to skin tingling.
Does Memodyne use a proprietary blend?
No. Every line carries its own milligram figure, so you or your pharmacist can compare each one with research and with the other products you take.
Is the Memodyne formula identical to MemoHoney?
MemoHoney's label lists the same seven amounts. They are sold under different names through similar sales pages. We sell Memodyne only, so read the panel on whichever bottle you hold.
Is there any research on the Memodyne formula?
We found no published study of this exact blend of lines. Research covers single ingredients, mostly for exercise or the heart, at much larger doses. Memantine trials that show up in searches concern a prescription drug, not this capsule.
Who wrote this
Written and reviewed by
Plain-language pages built from the label, the sales page and linked public health sources.
Last updated . Read our editorial standards and how we check reviews. This website is run by a USA authorized retailer that sells Memodyne, not by the maker (the label says distributed by Gex Corporation LLP, Ogden, UT). We earn money when you buy through our order links.
Keep reading
More about Memodyne

Supplement Facts
Every line of the Memodyne bottle, typed out and explained, plus what the label leaves out and how to match your own bottle.
Read more
Side effects
Possible reactions to each Memodyne label line, the medicines L-arginine can clash with, and the signs that mean stop or call 911.
Read more
Wrong ingredient lists
Bacopa, ginkgo and huperzine A show up on some Memodyne reviews but not on the bottle. Why that happens and how to check.
Read moreUSA Authorized Memodyne Retailer
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