Last checked October 2026. Formulas, packages and refund terms were taken from each seller’s official page and supplement facts panel on that date and can change without notice.
We read five labels. Three of them told us the dose.
You know the moment. You walk into the kitchen and stand there, waiting for the reason to come back. A name you have known for twenty years sits just out of reach. You read the same paragraph three times and still could not say what it said.
It is unsettling in a way that is hard to explain to anyone, because nothing is visibly wrong. You are functioning. You are just working harder than you used to for the same result.
That is the moment most people start searching, and it is the moment this category is built around. There are hundreds of brain supplements, almost all of them sold the same way: a long ingredient list, a confident claim, and a discount that expires.
So we did the one thing the sales pages make difficult. We compared the labels.
Here is what that turned up, and it reframes the whole category:
Two of the five do not publish how much of each ingredient they contain. You get the names and a combined blend weight, never the individual numbers.
Two of the five contain caffeine. Which means if you feel sharper an hour after taking one, you have learned something about caffeine, not about the formula.
Two of them are the same formula. Identical supplement facts panel, identical 151 mg blend, the same ingredients in the same order, sold under two brand names at the same price.
Three of the five display a crossed-out “regular price” of $179 per bottle that none of them appears to actually charge.
None of that makes these bad products. It does mean the thing that separates them is not the marketing. It is the label.
The one question worth asking
If a company will not tell you how much of an ingredient is in the capsule, how would you ever know whether it is enough?
Prices are identical across all five, down to the dollar. That is normal for this category and it means price tells you nothing about which to choose. Compare the three rows that actually differ: whether the amounts are published, whether there is a stimulant, and what the guarantee really covers.
Only three of these five publish every amountVapoCept is the one of the three built on ginkgo biloba.
How the five were compared.
Four criteria, weighted. We publish the weights because a score you cannot audit is not worth much.
Mechanism & delivery, 40%
What the formula is built to do, and whether the design makes sense for it. A product for daily support is judged differently from one leaning on a stimulant.
Formula & transparency, 25%
Are the amounts published? A named ingredient with no number behind it cannot be checked against any research. A blend is a decision to withhold, not a necessity.
Evidence & claims, 25%
How much human research exists on these specific compounds, and whether the seller stays inside what that research supports.
Purchase terms carry the last 10%: price, shipping, and what the refund actually requires. Weighted lowest because a good guarantee does not make a weak formula work.
What we did not do
We did not test these products, and no laboratory analysis was performed. This is a label-and-evidence review of published information. No published clinical trial exists on any of the five finished formulas.
A six-ingredient capsule built around ginkgo biloba, with a published milligram amount beside every ingredient and no stimulant anywhere in the formula.
9.11
A
Overall grade
Best overall. The only ginkgo formula here, every amount published, and nothing to confuse the signal.
Tap a tab to switch between overview, details, pros and cons, customer feedback and our verdict.
Two of the five ask you to take their word for it. VapoCept is not one of them, and it is the only formula here built on ginkgo biloba.
Every single ingredient on its label carries a number: ginkgo biloba leaf extract at 100 mg, D-glucosamine sulfate at 250 mg, turmeric root extract at 50 mg, marigold flower extract at 25 mg, green tea leaf extract at 15 mg, bamboo leaf extract at 5 mg. Six ingredients, six amounts, no blend hiding anything.
It is also stimulant-free, which matters more than it sounds. Two of the five products here contain caffeine. If you take one of those and feel sharper within the hour, you cannot tell whether the formula worked or whether you simply had the equivalent of a strong coffee. With VapoCept there is nothing to confuse the signal: whatever you notice at week three is the formula.
The formula is built around ginkgo biloba, the botanical with the longest research history of anything studied for blood flow to the brain. That is the spine of the product, and the remaining ingredients are antioxidant and structural support around it.
Format: capsules, 30 per bottle
Serving: 1 capsule daily
Stimulant: none
Amounts published: all six, in milligrams
Lead ingredient: ginkgo biloba leaf extract (4:1), 100 mg
Total actives per serving: 445 mg
Capsule shell: gelatin (bovine), so not suitable for vegetarians
Guarantee: 60 days, bottles returned at your own cost
Pros
Every ingredient amount published on the label, in a six-item list short enough to read in one go
No caffeine and no stimulant, so no afternoon crash and nothing to build tolerance to
Built around ginkgo biloba, the most-researched botanical for cerebral circulation
One capsule a day, taken whenever suits you, including at night
Made in the USA, GMP certified, in an FDA-registered facility, non-GMO
Free shipping on the 3 and 6-bottle packages
Points to consider
The formula reaches wider than memory. Glucosamine, lutein and bamboo silica are associated with joints, eyes and connective tissue rather than cognition
Like every product in this comparison, the amounts sit below what most published trials used. Ginkgo trials typically run 120 to 240 mg of a standardised extract
The capsule shell is gelatin, so it is not a vegetarian product
Refunds require returning the bottles at your own cost
What the published testimonials repeat most:
Noticing it in the second or third week, not the first day, which is what you would expect from a non-stimulant formula
Words and names arriving faster in conversation
No jitters and no crash, mentioned often enough that it reads as the main reason people stay on it
Easy to keep up: one capsule, no timing rules
Source: testimonials published by the manufacturer on its own website. Company-hosted feedback, not independent verification. We looked for third-party aggregation and found none for any product in this comparison.
If you want to know what you are putting in your body, this is one of three labels here that tells you, and the only one built on ginkgo. The trade-off is honest: the formula reaches wider than memory alone, and the amounts are conservative. But you can read this label, look up any ingredient, and check the number yourself.
02Last checked October 2026
Brain & memory · capsules
MemoFix
The classic botanical stack at the highest published doses on this page, in a two-capsule serving that carries more material than anything else here.
8.6
B+
Overall grade
Most material per serving. 1,030 mg of published actives, including the highest bacopa dose in this comparison.
Tap a tab to switch between overview, details, pros and cons, customer feedback and our verdict.
MemoFix is built on a reasonable botanical stack: Bacopa monnieri, Rhodiola rosea standardised to 3% salidroside, L-theanine and Panax ginseng, alongside branched-chain amino acids in a 2:1:1 ratio.
Four of those five have real cognition research behind them. L-theanine in particular is well studied for calm focus without sedation, and it is the ingredient that makes this a genuinely stimulant-free formula rather than one that simply left the caffeine out.
And the label quantifies all of it. Bacopa 200 mg, rhodiola 100 mg at 3% salidroside, L-theanine 100 mg, Panax ginseng 90 mg, BCAAs 540 mg: 1,030 mg of actives per serving, the largest published total on this page. For scale, that 200 mg of bacopa is more than the entire 151 mg blend of CogniCare Pro or NeuroMind Pro weighs, and those blends divide their 151 mg across seven ingredients.
It is the only product here requiring two capsules a day, which is how it fits that much in. Each bottle holds 60 capsules and 30 servings, so a bottle is still one month.
Guarantee: 60 days, all bottles returned, including the empty ones
Pros
Every amount published in milligrams, so each ingredient can be checked against its research
200 mg of bacopa, the highest dose on this page by a wide margin
A coherent stimulant-free botanical stack, with four of five ingredients having cognition research
L-theanine at 100 mg, an amount the research uses, for focus without sedation
Rhodiola at 100 mg standardised to 3% salidroside, so dose and extract strength are both stated
Distributor named with a city and a phone number
Points to consider
BCAAs are the largest item at 540 mg, and they are sports nutrition compounds with little cognitive research
Two capsules daily, the only product here that asks for more than one
No published trial exists on the finished formula
Refunds require all bottles back, including the empty ones, at your own cost
The published feedback follows the same pattern as the rest of this category: company-hosted, positive, and without independent corroboration. The platform ratings displayed on third-party pages covering this product are not verifiable.
Source: testimonials published by the manufacturer on its own website. Company-hosted feedback, not independent verification. We looked for third-party aggregation and found none for any product in this comparison.
The most material of any serving here, with the paperwork to back it. What keeps it from first place is not the formula but the refund condition, which asks for every bottle back including the empties, and the BCAAs taking up 540 mg that cognition research does not support. If the dose is what you are shopping for, this is the one.
03Last checked October 2026
Brain & memory · capsules
CogniCare Pro
The classic nootropic selection with the longest guarantee on this page, sold with the same supplement facts panel as NeuroMind Pro.
8.4
B+
Overall grade
Best guarantee. Ninety days, and the company states it accepts empty bottles. No one else here comes close.
Tap a tab to switch between overview, details, pros and cons, customer feedback and our verdict.
CogniCare Pro is the closest thing in this comparison to the classic nootropic stack: Bacopa monnieri, Rhodiola rosea, Huperzia serrata, L-tyrosine, theobromine and green coffee bean. Those are the compounds with the deepest human research in cognition, and on ingredient selection alone this is one of the two strongest lists of the five.
It also has, by a clear margin, the best guarantee on this page: 90 days, and the company states it accepts empty bottles. The other four all run 60 days, including NeuroMind Pro, which sells the identical formula.
The catch is the one that runs through this whole category. The label publishes the three B vitamins individually, then puts all seven actives inside a single 151 mg blend with no amount for any of them. With a stack where the doses are the entire question, that is a meaningful gap.
Format: capsules, 30 per bottle
Serving: 1 capsule daily, before a meal with half a glass of water
Stimulant: yes, caffeine from green coffee bean
Amounts published: B vitamins individually; the seven actives only as a 151 mg combined blend
B vitamins: B1 6 mg (500% DV), B6 8.5 mg (500% DV), B12 24 mcg (1000% DV)
Blend: caffeine from green coffee bean, L-tyrosine, theacrine, theobromine, Bacopa monnieri (20% bacosides), Rhodiola rosea root, Huperzia serrata (1% huperzine-A)
Guarantee: 90 days, empty bottles accepted, minus shipping
Pros
One of the two strongest ingredient lists here for cognition specifically: bacopa, rhodiola and huperzine all have human research behind them. The other one is NeuroMind Pro, which carries the identical panel
90-day guarantee that accepts empty bottles, the best buyer protection in this comparison by a wide margin
B vitamin amounts published individually, at meaningful percentages of the daily value
One capsule daily, free shipping on the 3 and 6-bottle packages
Points to consider
No individual amount for any of the seven actives, so nothing in the blend can be checked against the research
Contains caffeine, which means any same-day effect cannot be attributed to the rest of the formula, and the capsule is best avoided late in the day
Identical supplement facts panel to NeuroMind Pro, sold at the same price under a different brand
Seven actives share 151 mg, and bacopa alone is usually studied at around 300 mg
What the published testimonials repeat:
A noticeable lift in focus on the first day, which is consistent with a caffeine-containing formula
Better recall over several weeks of use
A few mentions of taking it too late and finding it harder to sleep
Source: testimonials published by the manufacturer on its own website. Not independently verified.
If the guarantee is what makes you comfortable pressing buy, this is the one. Ninety days with empty bottles accepted is genuinely the best protection on this page, on the same panel NeuroMind Pro sells with only 60. What you give up is knowing the dose of anything, and accepting caffeine as part of the deal.
04Last checked October 2026
Brain & memory · capsules
NeuroMind Pro
The same supplement facts panel as CogniCare Pro, line for line, sold under a different brand with a guarantee that runs a month shorter.
8.2
B+
Overall grade
The same formula, half the guarantee. An identical panel to CogniCare Pro at the same price, with 60 days of cover instead of 90.
Tap a tab to switch between overview, details, pros and cons, customer feedback and our verdict.
NeuroMind Pro and CogniCare Pro are not similar products. They are the same formula. Put the two supplement facts panels side by side and every line matches: vitamin B1 6 mg, B6 8.5 mg, B12 24 mcg, then a 151 mg proprietary blend holding caffeine from green coffee bean, L-tyrosine, theacrine, theobromine, Bacopa monnieri at 20% bacosides, Rhodiola rosea root and Huperzia serrata at 1% huperzine-A. Same amounts, same order, same blend weight, two brand names, two addresses in the same Colorado city, one price.
Both labels do publish one useful number: the blend weighs 151 mg.
That disclosure cuts both ways. It is more honest than saying nothing. It also tells you that seven ingredients share 151 mg between them. For context, Bacopa monnieri is typically studied at around 300 mg per day on its own. The arithmetic is tight, and the label gives you just enough information to notice.
Format: capsules, 30 per bottle
Serving: 1 capsule daily
Stimulant: yes, caffeine from green coffee bean
Amounts published: B vitamins individually, actives only as a 151 mg combined blend
B vitamins: B1 6 mg (500% DV), B6 8.5 mg (500% DV), B12 24 mcg (1000% DV)
Blend: caffeine from green coffee bean, L-tyrosine, theacrine, theobromine, Bacopa monnieri (20% bacosides), Rhodiola rosea root, Huperzia serrata (1% huperzine-A)
Publishes the blend weight and the three B vitamin amounts, which is more than a bare ingredient list gives you
B vitamins at meaningful percentages of the daily value
Huperzia serrata standardised to 1% huperzine-A and bacopa to 20% bacosides, so the extract strength is stated even where the dose is not
One capsule daily
Points to consider
Seven actives inside 151 mg. Bacopa alone is usually studied at around 300 mg, so several ingredients are necessarily present in small amounts
Contains caffeine, with the same consequences: same-day effects are not attributable to the formula, and late dosing can affect sleep
The same formula as CogniCare Pro, with a 60-day guarantee instead of 90
Shipping charged on the 2-bottle package
What the published testimonials repeat:
A same-day lift in alertness, again consistent with caffeine
The B vitamins mentioned as a reason for choosing it
Mixed reports on memory specifically, as opposed to energy and focus
Source: manufacturer-published testimonials. Not independently verified. Note that one widely circulated third-party review of this product lists an ingredient set that does not match the label.
One of the two stimulant formulas on this page, and the cheaper decision of the two to get wrong. The label tells you the blend is 151 mg, and 151 mg across seven ingredients answers its own question. Choose it over CogniCare Pro if the brand matters to you; choose CogniCare Pro if the 90-day guarantee does, because the capsule inside is the same.
05Last checked October 2026
Brain & memory · capsules
MemoHoney
A nitric oxide formula with every one of its seven amounts printed on the label, arguing for memory through circulation rather than through neurotransmitters.
7.9
B
Overall grade
Best for the circulation angle. Every amount published, on the most different mechanism in this comparison.
Tap a tab to switch between overview, details, pros and cons, customer feedback and our verdict.
MemoHoney takes the most different approach on this page, and it is honest about every milligram of it.
The formula is L-arginine 200 mg, L-arginine AKG 200 mg, L-citrulline HCl 100 mg, L-citrulline malate 100 mg, beta-alanine 40 mg, plus niacin and calcium. Every amount is published.
Those compounds are nitric oxide precursors. The reasoning is circulatory: better blood flow, better delivery of oxygen and glucose to brain tissue. That is a real mechanism and it is the same logic behind the ginkgo in our top pick.
The honest problem is the research base. Arginine, citrulline and beta-alanine are among the best-studied supplements in existence, but almost entirely for cardiovascular function and exercise performance. The literature connecting them specifically to memory is thin. And the amounts, while fully disclosed, are far below what the circulation research used: citrulline studies typically run 3 to 6 grams, where this provides 200 mg across two forms.
Format: capsules, 30 per bottle
Serving: 1 capsule daily with 8 oz of water, 20 to 30 minutes before a meal
Full disclosure of all seven amounts, one of three labels here that publishes every number
No stimulant, so it can be taken at any hour
A coherent and legitimate mechanism: nitric oxide and blood flow
One capsule daily, free shipping on the 3 and 6-bottle packages
Points to consider
The research on these compounds is cardiovascular and athletic, not cognitive. The connection to memory is a reasonable inference, not a documented result
The amounts are far below the studied doses. Citrulline research typically uses 3 to 6 grams; this delivers 200 mg across two forms
Beta-alanine can cause a harmless tingling sensation in some people
Anyone taking blood pressure or circulation medication should check with a doctor first
What the published testimonials repeat:
A gradual change across several weeks
Less of an afternoon slump
Some mention of the tingling associated with beta-alanine
Source: testimonials published by the manufacturer on its own website. Not independently verified.
One of the three fully disclosed labels on this page, applied to a formula whose research lives in a different field. If the circulation argument makes sense to you and you want to see every number, it is a defensible choice. If you want ingredients studied specifically for memory, three other products on this list fit better.
Seen enough of the labels?The full supplement facts panel is published on the official page.
Why we ranked VapoCept #1.
Our editorial team assesses every product against the same four criteria: mechanism, formula transparency, evidence quality and purchase terms. Several things separated VapoCept from the rest of this list.
It publishes the milligram amount of all six ingredients. CogniCare Pro and NeuroMind Pro publish only the combined weight of a seven-ingredient blend, so no single dose on either label can be checked
It contains no stimulant. The two products with the strongest ingredient lists both rely on caffeine, which makes their effect impossible to separate from a cup of coffee
Ginkgo biloba at 100 mg is the single ingredient in this comparison with the longest history of human research on cerebral blood flow, and it is the lead of the formula rather than a trace
One capsule daily with no timing restriction. Nothing that stops you taking it in the evening
A short, legible label. Six actives, three excipients, no proprietary complex standing in for information
Manufactured in the USA in an FDA-registered, GMP-certified facility, non-GMO
What this ranking is based on
VapoCept earned first place on transparency, formula logic and stimulant-free design. As with every supplement in this category, no published clinical trial exists on the finished product, and ingredient research should not be read as proof that a complete formula produces the same outcome. We apply that standard to all five products here, not just this one.
We reviewed the supplement facts panel, serving directions, manufacturing disclosures, refund terms and published claims for all five products, then compared them against each other and against the research on the individual compounds. This was an editorial evaluation of available information. No laboratory testing or clinical assessment was performed.
Our finding: the brain supplement category competes almost entirely on claims, because claims are cheap and disclosure is not. VapoCept is the one product here that competes on disclosure instead. That is a harder sell and a better signal.
This is the one we would put money onSix ingredients, six published amounts, no stimulant.
What real users report.
Where this comes from. Every product on this page displays testimonials on its own website. We reproduce the recurring themes with that attribution rather than presenting them as independent verification, because that is what they are: selected, company-hosted feedback. We searched for third-party review aggregation on all five products and found no meaningful independent source for any of them. That is worth knowing before you weigh anyone’s star rating, including the ones displayed on other review sites.
One caution about other reviews of these products
While researching this comparison we checked the most widely circulated third-party reviews against the actual supplement facts panels. Several listed ingredients that do not appear on the label at all. If you are reading other coverage of these products, compare it against the label image on the official page before trusting the ingredient list.
VapoCept
Users describe the change arriving in the second or third week rather than immediately, words and names coming faster in conversation, and no jitters or crash. The delayed onset comes up consistently, which is what a non-stimulant formula would be expected to produce.
MemoFix
Company-hosted feedback following the same pattern as the others, with no independent corroboration available.
CogniCare Pro
A first-day lift in focus is the dominant theme, consistent with a caffeine-containing formula, alongside reports of better recall over several weeks.
NeuroMind Pro
Same-day alertness again, with the B vitamins frequently given as the reason for choosing it. Reports on memory specifically are more mixed than reports on energy.
MemoHoney
Gradual change over weeks, less afternoon slump, and occasional mention of the tingling sensation associated with beta-alanine.
How to choose between them.
Start with one question: do you want to feel something today, or build something over weeks?
That single question decides the answer. If you want a same-day lift, the two caffeine formulas, CogniCare Pro and NeuroMind Pro, will deliver one. If you want to know what you are taking and give it time to work, VapoCept publishes every amount, carries no stimulant, and is the only one here built on ginkgo biloba. If you want the classic botanical stack at the highest published doses here, MemoFix. If the circulation argument appeals to you and you want every number visible, MemoHoney.
Ignore the price. It is identical. All five charge $79, $69 and $49 per bottle depending on the package. Price cannot differentiate them, and any page that tells you one is better value than another on cost alone is not reading the same numbers.
Be careful with the regular price. Three of these display a crossed-out $179 per bottle. None of them appears to actually sell at that price. Judge the $49 on its own merits, not against an anchor that exists to make $49 look like a rescue.
Read the refund terms before the price. All five ask you to ship the bottles back at your own cost, and none refunds the original shipping. The real differences are the window and what they accept. CogniCare Pro gives 90 days and takes empty bottles. The other four give 60 days. That gap is worth more than any discount on this page.
A stimulant is not a free benefit. Caffeine works, which is exactly the problem when you are trying to evaluate a formula. It also builds tolerance, and it restricts when you can take the capsule. If you already drink coffee, a caffeine supplement is adding to a dose you already have.
Give any of them longer than a week. None of these is a drug. The botanical ingredients involved are studied over weeks, not hours, and judging a non-stimulant formula after three days tells you nothing.
Check interactions if you take anything prescribed
Ginkgo biloba can affect blood clotting and matters if you take an anticoagulant. Huperzine A acts on acetylcholine and warrants a conversation if you take anything neurological. Arginine and citrulline affect blood vessel dilation and matter alongside blood pressure medication. A two-minute conversation with a pharmacist is free.
When a supplement is the wrong tool
Memory changes that are getting steadily worse, affecting your work or your daily routine, or that other people have noticed before you did, deserve a medical assessment rather than another bottle. The same goes for memory problems arriving alongside low mood, poor sleep, or a new medication. Thyroid problems, B12 deficiency, sleep apnoea, depression and medication side effects all present as memory trouble and all are treatable. No supplement addresses any of them, and finding out costs very little.
Still deciding between them?We earn a commission on any of the five, so buy the one that fits.
Final verdict
The one we would put money on.
Of the five here, VapoCept is the one we would choose, and the reason is unusual: it is the only one built on ginkgo biloba, and it tells you exactly how much of it you get. Six ingredients, six published amounts, no stimulant to confuse the result.
What you are trading away. The formula reaches past memory into joints and eyes, and the amounts are conservative against what the trials used. We would rather say that plainly than sell you a certainty that does not exist.
What you are getting. A label you can audit, a mechanism with the longest research history in the category, one capsule a day with no timing rules, and 60 days to decide.
If the dose per serving is what you care about most, MemoFix carries more material than anything else here. If the guarantee is what gets you to press buy, CogniCare Pro gives you 90 days. We earn a commission either way, and we would rather you buy the one that fits.
Frequently asked questions.
What are the best brain supplements in 2026?
On this page VapoCept ranks first, because it is the only one of the five built on ginkgo biloba and it publishes the amount of every ingredient. MemoFix follows with the largest published dose per serving, then CogniCare Pro on the strength of a 90-day guarantee, NeuroMind Pro with the same formula and half the guarantee, and MemoHoney on a circulation mechanism with every amount disclosed.
Do brain supplements work?
The honest answer is that the individual ingredients have research behind them and the finished formulas do not. No published clinical trial exists on any of these five products. Bacopa, ginkgo, rhodiola and L-theanine all have human studies; whether a particular capsule containing some amount of them produces the same result is not established.
Which brain supplement has the highest dose?
MemoFix, by a wide margin. It publishes 1,030 mg of actives per two-capsule serving, including 200 mg of bacopa. For comparison, the entire proprietary blend in CogniCare Pro and NeuroMind Pro weighs 151 mg and is split across seven ingredients.
Why do all five cost exactly the same?
Because $79, $69 and $49 per bottle is the standard pricing ladder in this category and all five land on it. That is useful information rather than a coincidence: it means price cannot tell you which to buy, so the label has to.
What is a proprietary blend and why does it matter?
A proprietary blend lists the ingredients but not how much of each one is present, usually giving only a combined weight. It matters because dose is most of what determines whether an ingredient does anything. A blend containing a researched compound at a fraction of the studied amount is indistinguishable, on the label, from one containing a useful dose.
Are CogniCare Pro and NeuroMind Pro the same product?
Their supplement facts panels are identical: the same three B vitamins at the same amounts, the same 151 mg blend, the same seven ingredients in the same order, and both are distributed from Aurora, Colorado. They are sold under different brand names at the same price. The difference that matters to a buyer is the guarantee: 90 days for CogniCare Pro, 60 for NeuroMind Pro.
Which brain supplements contain caffeine?
CogniCare Pro and NeuroMind Pro both contain caffeine from green coffee bean, inside their 151 mg blend. VapoCept, MemoFix and MemoHoney contain no stimulant at all.
How long before a brain supplement works?
For the non-stimulant formulas, the published research on these botanicals runs over weeks. Bacopa studies commonly run twelve weeks. Expect to judge VapoCept, MemoFix or MemoHoney at three to four weeks of daily use, not three days. The two caffeine formulas produce a same-day effect, but that effect is the caffeine.
What do the refund terms actually require?
All five carry a money-back guarantee, and all five ask you to ship the bottles back at your own cost. None refunds the original shipping. CogniCare Pro gives 90 days and states it accepts empty bottles. The other four give 60 days, and MemoFix requires every bottle back including the empty ones. Keep your order confirmation.
Can I buy these at Walmart, Amazon or GNC?
No. All five are sold through their official websites only. Anything listed elsewhere is an unauthorised reseller, and the guarantee does not apply to it.
Sources & verification record.
Formulas, packages and refund terms were taken from each product’s official page and supplement facts panel in October 2026. The research below relates to individual ingredients, not to the finished formulas. No published peer-reviewed trial on any of the five complete products was located.
The cognitive-enhancing effects of Bacopa monnieri: a systematic review of randomized, controlled human clinical trials. PubMed 22747190
Meta-analysis of randomized controlled trials on cognitive effects of Bacopa monnieri extract. PubMed 24252493
The chronic effects of an extract of Bacopa monniera (Brahmi) on cognitive function in healthy human subjects. PubMed 11498727
Specific memory effects of Ginkgo biloba extract EGb 761 in middle-aged healthy volunteers. PubMed 21802920
Rhodiola rosea in stress induced fatigue: a double blind cross-over study of a standardized extract. PubMed 11081987
Therapeutic effects and safety of Rhodiola rosea extract WS 1375 in subjects with life-stress symptoms. PubMed 22228617
The effects of L-theanine, caffeine and their combination on cognition and mood. PubMed 18006208
Effects of L-Theanine Administration on Stress-Related Symptoms and Cognitive Functions in Healthy Adults. PubMed 31623400
Panax ginseng (G115) improves aspects of working memory performance and subjective ratings of calmness. PubMed 20737519
Effect of tyrosine supplementation on clinical and healthy populations under stress or cognitive demands. PubMed 26424423
Cognitive impairment and vitamin B12: a review. PubMed 22221769
Green tea effects on cognition, mood and human brain function: a systematic review. PubMed 28899506
Memory and Brain Amyloid and Tau Effects of a Bioavailable Form of Curcumin in Non-Demented Adults. PubMed 29246725
A role for branched-chain amino acids in reducing central fatigue. PubMed 16424144
Effects of beta-alanine supplementation on exercise performance: a meta-analysis. PubMed 22270875
Effect of beta-alanine supplementation on muscle carnosine concentrations and exercise performance. PubMed 20091069
Effects of glucosamine, chondroitin, or placebo in patients with osteoarthritis of hip or knee. PubMed 20847017
L-theanine, a natural constituent in tea, and its effect on mental state. PubMed 18296328
Sources checked October 2026. Every citation below was verified against the PubMed record on that date.
These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure or prevent any disease. Individual results vary. Speak to a doctor before starting any supplement, particularly if you take prescription medication.
Also worth reading.
Our other comparison looks at three sleep formulas on mechanism, melatonin dose and refund terms.