Memodyne Ingredients List, With Each Amount per Capsule

Q: What is in Memodyne, ingredient by ingredient?

Two arginine lines of 200 mg, two citrulline salts of 100 mg, beta alanine 40 mg, niacin 7.5 mg NE and calcium 18 mg, in a hypromellose capsule.

Q: Why does the Memodyne website name only six ingredients?

Its sales page skips calcium. The bottle label lists seven lines with amounts, and the label is the list to trust.

Q: Does Memodyne hide any amounts in a blend?

No. All seven actives carry their own milligram figure.

Q: Is there caffeine among the Memodyne ingredients?

No caffeine or other stimulant appears on the label.

Q: Has any Memodyne ingredient been shown to improve memory?

Not in the sources we opened. The amino acid research covers blood pressure, exercise and erectile dysfunction at gram doses.

Q: Why does Memodyne use two kinds of citrulline?

The label does not say. HCl and malate are two salt forms of one amino acid, and together give under 200 mg of citrulline.

Q: How much calcium is in one Memodyne capsule?

18 mg as calcium carbonate, printed as 1.5% of the Daily Value. Adults need 1,000 to 1,200 mg a day.

Quick answer

Memodyne's label shows seven ingredients in each capsule.

You get two arginine forms at 200 mg each, two citrulline forms at 100 mg each, beta alanine 40 mg, niacin 7.5 mg NE and calcium 18 mg.

Wondering about dosing? See how to take it.

Written by the Memodyne Editorial DeskUpdated October 29, 2026

What are the Memodyne ingredients? Seven lines on one capsule

The Memodyne supplement label prints seven active lines, each with its own amount. There is no proprietary blend, so every milligram can be checked against research.

The Memodyne Supplement Facts panel: one capsule, 30 servings per bottle
Label line	Per capsule	What it is	Studied mainly for
L-arginine (base)	200 mg	Amino acid	Blood pressure, exercise, erectile dysfunction
L-arginine AKG 2:1 extract	200 mg	Arginine bound to alpha-ketoglutarate	No authoritative page found
L-citrulline HCl	100 mg	Amino acid salt	Blood pressure, exercise
L-citrulline malate	100 mg	Amino acid bound to malic acid	Exercise
Beta alanine	40 mg (no DV)	Amino acid	Short, hard exercise
Niacin	7.5 mg NE (47% DV)	Vitamin B3	Daily intake needs
Calcium (as calcium carbonate)	18 mg (1.5% DV)	Mineral	Daily intake needs

The four amino acid lines add up to 640 mg; with niacin and calcium, 665.5 mg. No line is caffeine or another stimulant, so the FOCUS and ENERGY words on the bottle do not come from a jolt.

Why do Memodyne ingredient lists disagree? Seven, six and six

Three sources, three lists. The bottle label has seven lines, the brand's sales page names six and drops calcium, and the seller pack names six and drops beta alanine.

Which source names which ingredient; only the label gives amounts
Ingredient	Bottle label	Brand sales page	Seller pack	"Inside" graphic
L-arginine (base)	200 mg	Listed	Listed	Listed
L-arginine AKG 2:1	200 mg	Listed	Listed	Listed
L-citrulline HCl	100 mg	Listed	Listed	Listed
L-citrulline malate	100 mg	Listed	Listed	Listed
Beta alanine	40 mg	Listed	Missing	Missing
Niacin	7.5 mg NE	Listed	Listed	Listed
Calcium	18 mg	Missing	Listed	Listed

We go by the label, the only list with numbers.

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.

Check today’s price

What does the "Inside Memodyne" graphic leave out?

Beta alanine. Six tiles surround two bottles, and the 40 mg amino acid on the label has none. Tap a number.

Niacin. No amount here; the label says 7.5 mg NE.
Calcium. Shown here, yet absent from the sales page text.
L-arginine (base). 200 mg. The molecule drawing is styling, not a measure.
L-arginine AKG 2:1. 200 mg, part of it alpha-ketoglutarate rather than arginine.
L-citrulline HCl. 100 mg of a salt, so under 100 mg of citrulline.
L-citrulline malate. 100 mg of citrulline joined to malic acid.
Where is beta alanine? On the label at 40 mg; no tile here.
The small print. FDA has not evaluated these statements.

How much arginine and citrulline does one capsule really give?

Less than the lines add up to. The arginine lines total 400 mg and the citrulline lines 200 mg, but three of those four lines are bound forms that carry a partner molecule.

<400 mgactual arginine from the two arginine lines

<200 mgactual citrulline from the two salts

4,000 mglowest daily arginine dose in blood pressure studies

3,000 mglowest daily citrulline dose in the pooled trials

L-arginine AKG is arginine joined to alpha-ketoglutarate. Citrulline HCl carries hydrochloride and citrulline malate carries malic acid. The label gives no split, and we do not guess one.

Even a full 400 mg is one-tenth of the 4 g low end for blood pressure (RxList, L-Arginine (supplement monograph)), and 200 mg is about one-fifteenth of the 3 g low end for citrulline (Avicenna J Phytomed 2019, Barkhidarian et al., L-citrulline and blood pressure meta-analysis).

What does the Memodyne sales page say each ingredient does, and does the evidence agree?

Not in the sources we opened. Each brand one-liner sits beside what we found.

the molecule responsible for dilating blood vessels in the brainSales page, L-arginine
Marketing only
Some arginine becomes nitric oxide, a vasodilator (NIH ODS, Dietary Supplements for Exercise and Athletic Performance (health professional)). No source measured brain vessels or memory.
improves absorption and extends the vasodilating effect throughout the daySales page, L-arginine AKG
Marketing only
No authoritative page we opened covers this form at all.
a continuous cycle of nitric oxide productionSales page, L-citrulline HCl
Marketing only
Citrulline "might increase plasma levels of nitric oxide metabolites" (NIH ODS, Dietary Supplements for Exercise and Athletic Performance (health professional)). Might is not a cycle.
plays a direct role in energy production within cellsSales page, L-citrulline malate
Marketing only
No source we opened covers malate; workout studies used grams of citrulline malate.
improves cerebral microcirculationSales page, niacin
Marketing only
The NIH niacin sheet mentions memory only as a pellagra symptom (NIH ODS, Niacin (health professional)).
protects neurons from age-related wear and tearSales page, beta alanine
Marketing only
The sports-nutrition position stand is about muscle and never mentions memory (ISSN position stand: Beta-Alanine (2015)).
COGNITIVE SUPPORT FORMULA*Bottle front
On the label
The asterisk leads to the FDA statement: not evaluated, not meant to treat any disease.

Are the Memodyne doses the same as in studies?

No. Every amino acid sits far below the amounts used in human research; only niacin reaches a real share of a daily need. Each bar is drawn to scale.

Memodyne label amountFull bar = dose used in human studies

L-arginine (both forms)under 10% of the lowest blood pressure dose

Label: under 400 mg. Studied: 4 to 24 g a day in blood pressure studies. (RxList, L-Arginine (supplement monograph)) (Memorial Sloan Kettering, Arginine (About Herbs))

L-citrulline (both forms)under 7% of the lowest trial dose

Label: under 200 mg. Studied: 3 to 9 g a day in blood pressure trials. (Avicenna J Phytomed 2019, Barkhidarian et al., L-citrulline and blood pressure meta-analysis) (NIH ODS, Dietary Supplements for Exercise and Athletic Performance (health professional))

Beta alanine1% of the low end

Label: 40 mg. Studied: 4 to 6 g a day in exercise studies. (ISSN position stand: Beta-Alanine (2015)) (NIH ODS, Dietary Supplements for Exercise and Athletic Performance (health professional))

Niacinabout half of an adult's daily need

Label: 7.5 mg NE. Studied: 14 to 16 mg NE a day adult need (RDA). (NIH ODS, Niacin (health professional))

Calciumunder 2% of an adult's daily need

Label: 18 mg. Studied: 1,000 to 1,200 mg a day adult need. (NIH ODS, Calcium (health professional))

Small amounts do not cancel the medicine cautions on the side effects page. And the Global Council on Brain Health could not endorse any supplement for brain health (Global Council on Brain Health (AARP), The Real Deal on Brain Health Supplements).

Why is there calcium in Memodyne, and is 18 mg enough to matter?

Not for your daily total. Adults are advised to get 1,000 to 1,200 mg a day, so one capsule gives under 2% of that (NIH ODS, Calcium (consumer)).

The label prints 1.5% of the Daily Value, which for calcium is 1,300 mg (NIH ODS, Calcium (health professional)). The form, calcium carbonate, is the compound in antacids such as Tums. The label gives no reason for including it.

Brand sales page: Leaves it out; its six named nutrients skip calcium
Seller pack and graphic: Both include it
Memory evidence: None in the calcium sources we opened
Timing: Carbonate absorbs best with food; the label says 20 to 30 minutes before a meal

Thyroid medicine? Levothyroxine absorption drops when it is taken within 4 hours of calcium carbonate (NIH ODS, Calcium (consumer)). 18 mg is small and no source gives a cut-off, so ask a pharmacist about timing.

What else is in a Memodyne capsule besides the actives?

Three helpers listed as other ingredients: the shell and two processing aids, with no amounts.

Hypromellose: The capsule itself, made from plant cellulose: the label's vegetable capsule.
Vegetable stearate: A plant-derived lubricant that keeps powder off the filling machine.
Silicon dioxide: A fine mineral powder that keeps the fill flowing without clumps.

A brand badge says vegetarian but names no certifier.

What does each milligram of Memodyne cost?

About a quarter of a cent per milligram on the 6-bottle pack: the daily price divided by the 665.5 mg of listed actives in one capsule.

Brand prices; confirm the total at checkout
Pack	Per bottle	Per capsule (one day)	Per 100 mg of actives
6 bottles, free US shipping	$49	$1.63	about $0.25
3 bottles, free US shipping	$69	$2.30	about $0.35
2 bottles, plus about $9.99 shipping	$79	$2.63 ($2.80 with shipping)	about $0.40 ($0.42)

Matching the lowest blood pressure dose of arginine, 4 g, would take more than ten capsules, and the label says one a day, do not exceed. At the best price that is over $16 a day.

Memodyne ingredients: questions people ask

What is in Memodyne, ingredient by ingredient?

Two arginine lines of 200 mg, two citrulline salts of 100 mg, beta alanine 40 mg, niacin 7.5 mg NE and calcium 18 mg, in a hypromellose capsule.

Why does the Memodyne website name only six ingredients?

Its sales page skips calcium. The bottle label lists seven lines with amounts, and the label is the list to trust.

Does Memodyne hide any amounts in a blend?

No. All seven actives carry their own milligram figure.

Is there caffeine among the Memodyne ingredients?

No caffeine or other stimulant appears on the label.

Has any Memodyne ingredient been shown to improve memory?

Not in the sources we opened. The amino acid research covers blood pressure, exercise and erectile dysfunction at gram doses.

Why does Memodyne use two kinds of citrulline?

The label does not say. HCl and malate are two salt forms of one amino acid, and together give under 200 mg of citrulline.

How much calcium is in one Memodyne capsule?

18 mg as calcium carbonate, printed as 1.5% of the Daily Value. Adults need 1,000 to 1,200 mg a day.

Page check

Written by

Memodyne Editorial Desk

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