Arginine, in the lab
L-arginine for memory: what do human studies show?
L-arginine for memory has been tested in one small 2026 pilot: 6.4 g a day for 30 days in older adults with memory complaints, and the placebo group improved too. MemoHoney's two arginine rows add up to 0.4 g a capsule, about 6% of that dose. No trial tested the capsule.
Written by the MemoHoney label deskUpdated · 5 min read
What does the L-arginine for memory pilot show?
L-arginine for memory has one small oral human pilot, from 2026, and it points to a possible signal that needs larger trials.
Thirty-eight people aged 60 or older with memory complaints got 6.4 g of arginine a day or placebo for 30 days, and 35 finished. On the ACE-III test, 37.5% of the arginine group reached a normal score against 5.3% on placebo. The placebo group also improved on memory (Teotia 2026, oral arginine pilot). The authors call it a pilot.
Did arginine raise brain blood flow in humans?
Yes, once, by vein: a 1997 study raised whole-brain blood flow 9.5% in 12 people, but it ran no memory test.
Six people got arginine at 500 mg per kg through a drip and six got saline. Flow rose from 34.9 to 38.2 ml per 100 g per minute with arginine only (Reutens 1997, arginine cerebral flow). That is a very high intravenous dose and says nothing about 200 mg swallowed in a capsule.
How does a 200 mg arginine row compare with the studied dose?
A 200 mg arginine row is about 3% of the 6,400 mg used in the memory pilot, and both rows together are about 6%.
The AKG 2:1 extract row does not say how much arginine it holds.
- L-Arginine (base + AKG extract)400 mg on the label
Studies: 6.4 g a day in one memory pilot; up to 30 g a day for 90 days in a safety trial. Studies used about 16 to 75 times the label amount. (Teotia 2026, oral arginine pilot) (McNeal 2018, arginine 30 g safety)
- L-Citrulline (HCl + malate)200 mg on the label
Studies: 3 to 9 g a day in exercise and blood pressure trials; no memory trial found. Studies used about 15 to 45 times the label amount. (Chen 2016, BCAA arginine citrulline) (Trexler 2019, citrulline meta)
- Beta Alanine40 mg on the label
Studies: 1.6 to 6.4 g a day; ISSN says 4 to 6 g a day; no cognitive change in the one test found. Studies used about 40 to 160 times the label amount. (Hoffman 2014, beta-alanine soldiers) (ISSN beta-alanine stand)
- Niacin7.5 mg on the label
Reference: 16 mg NE is the Daily Value; 35 mg a day is the upper limit for supplements. The label is 47% of the Daily Value and 21% of the upper limit for supplements. (NIH ODS, Niacin)
- Calcium18 mg on the label
Reference: adults need about 1,000 mg a day from all sources; the cognition trial used 1,000 mg with vitamin D. The label is about 2% of what an adult man needs in a day. (NIH ODS, Calcium) (Rossom 2012, WHI calcium + D)
Log scale: each gridline is ten times the one before. Studied ranges are daily amounts from the trials linked on each row; the arginine row compares the label's 400 mg (200 mg base plus 200 mg of an AKG extract) with arginine studies, and the citrulline row 200 mg (two forms) with citrulline studies. Niacin and calcium rows show reference levels, not study doses. A bar being far away does not mean the capsule is unsafe or useless; it means the study results cannot be borrowed for it.
400 mg is the most arginine the two rows could hold; the extract's share is not printed.
| Source | Amount | Measured |
|---|---|---|
| MemoHoney, both rows | 400 mg a capsule | None tested |
| 2026 oral pilot | 6,400 mg a day | Memory test |
| 1997 vein study | 500 mg per kg | Blood flow only |
MemoHoney capsules: 30 to a bottleOne capsule a day · 2, 3 or 6 bottles · price and shipping shown at checkout
See the priceIs arginine safe to take for memory?
Arginine is not safe for everyone: it can drop blood pressure too far with nitrates, sildenafil-type medicines and blood pressure medicines (Mayo Clinic, L-arginine).
It may add to blood thinners and diabetes medicines, and it is not for people after a recent heart attack: 6 of 153 patients on arginine died in one trial, against none on placebo (Schulman 2006, VINTAGE MI). Keep taking prescribed medicine; call 911 for chest pain, fainting or trouble breathing. Memory problems that are new or getting worse need a clinician.
Where does the MemoHoney capsule come in?
MemoHoney is a dietary supplement of vegetable capsules that lists arginine in two rows, and it contains no honey.
The front says "ADVANCED MEMORY SUPPORT*", a marketing line we do not confirm. See the L-arginine page and the formula page for each row. The order total is shown at checkout.
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6 bottles: 180 days
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FAQ
MemoHoney questions people ask
Is the L-arginine dose in MemoHoney the same as in studies?
No. The 2026 pilot used 6,400 mg a day. MemoHoney has 200 mg of arginine base and 200 mg of AKG extract, so 400 mg at most. That is about 6% of the studied dose.
Does L-arginine help memory?
No trial has shown that. One small 2026 pilot used 6.4 g a day for 30 days in older adults with memory complaints and the placebo group improved too. A 200 mg capsule row is far below that dose, so it cannot be assumed to do the same.
How much L-arginine was used in the memory study?
The 2026 pilot used 6.4 g a day, or 6,400 mg, for 30 days. MemoHoney's two arginine rows total 400 mg a capsule. That is about 6% of the studied dose, and the AKG extract's arginine content is not printed.
Who wrote this
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Pages built from the label, the seller's brief and linked NIH, FDA, CDC, FTC and peer-reviewed sources.
Last updated . Read our editorial standards and how we check reviews. This website is the information site of a USA Authorized MemoHoney Retailer. It is not the manufacturer, and the label names INSTITUTO EXPERIENCE (Ogden, Utah) as the distributor. We earn money when you buy through our order links.
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