Top 6 Supplements & Vitamins for Brain Fog in 2026

Mind Lab Pro is the first-ranked stack for brain fog because its 11-ingredient formula has been tested against placebo in 3 trials. In the largest, 105 adults took 2 capsules (one serving, amounts under Mind Lab Pro) a day for 30 days, and simple reaction time, choice reaction time and anticipation scores (timing accuracy for a moving signal) differed from placebo (p < 0.001, p = 0.002 and p = 0.004). ⁽¹⁾

The other two trials differ: one found higher delayed recall scores and a borderline difference in immediate recall, and one, in 32 analysed adults, found no gain in reaction time or accuracy (details under Mind Lab Pro). Simple reaction time is how fast a person responds to one signal; choice reaction time is the same task with several possible signals.

Brain fog describes slow thinking, poor concentration and memory lapses rather than one disease, so a supplement is most likely to help when it matches the cause (an inference from the trials below, not a tested rule): a missing nutrient, stress-related mental fatigue, or slower attention and reaction speed.

For mental clarity, no trial on this page measured clarity itself; the closest measured outcomes are reaction speed and attention (Mind Lab Pro and rhodiola) and memory reaction time (DHA). As a nootropic for brain fog, the stack with trial data on its finished formula is Mind Lab Pro. For a vegan option without caffeine, Mind Lab Pro has no caffeine and its label lists no stimulant ingredient (it does contain rhodiola and tyrosine, which are commonly reported to cause restlessness), and its vendor page says suitable for vegans; NooCube has no caffeine, and its vendor page says suitable for vegetarians (vegan is not stated).

For a supplement combo for brainfog, meaning a multi-ingredient stack, Mind Lab Pro is ranked first and NooCube second; NooCube has no published formula trial. A foggy brain with a measured deficiency is treated with the missing nutrient after a blood test (see the deficiency section). For Noobru alternatives, the stacks compared on this page are Mind Lab Pro (ranked 1) and NooCube (ranked 2); Noobru is not scored here.

The ranked picks are the two stacks (Mind Lab Pro and NooCube) and five single supplements (Rhodiola rosea, reishi, DHA, omega-3 fatty acids and vitamin B12). Stacks are ranked against each other and single supplements against each other, each group numbered from 1, on four criteria in this order: placebo-controlled human evidence (including how closely the trial population matches brain fog), label amount against the dose trials used, side effects, and cost per day.

Good Supplements for Less Brain Fog

Some medications, including some antidepressants, sleeping pills and painkillers, are commonly reported to cause mental slowing as a side effect; a pharmacist or doctor can check a medicine list when brain fog starts after a new medicine.

Mind Lab Pro

Mind Lab Pro v4 lists 11 ingredients in a 2-capsule serving, with no caffeine and no stimulant ingredient on the label: citicoline 250 mg (as Cognizin, a choline source rather than an amino acid), Bacopa monnieri 150 mg (24% bacosides), organic lion’s mane mushroom 500 mg, phosphatidylserine 100 mg, N-acetyl L-tyrosine 175 mg, L-theanine 100 mg, Rhodiola rosea 50 mg (3% rosavins, 1% salidrosides), maritime pine bark extract 75 mg (95% proanthocyanidins), and NutriGenesis vitamin B6 2.5 mg, vitamin B9 100 mcg and vitamin B12 7.5 mcg. The label directions are 2 to 4 capsules a day, in the morning or early afternoon on an empty stomach. The full label and trial record are in the Mind Lab Pro review.

All three trials were pseudo-randomised: participants were assigned pseudo-randomly, not by true randomisation. In the 30-day reaction-time trial, median simple reaction time fell from 330.5 to 290 ms on Mind Lab Pro (40.5 ms, 12.3% faster within the group) and rose from 309.5 to 318.5 ms on placebo (9 ms, 2.9% slower). The arms were unequal (61 and 44 completers), and the placebo group was faster at baseline. A second trial with 36 Mind Lab Pro and 13 placebo completers found a difference from placebo in delayed recall (p = 0.034) and a borderline one in immediate recall (p = 0.05 in the results; the reported chi-square of 3.747 gives about 0.053). ⁽²⁾ A third trial analysed 17 adults on Mind Lab Pro and 15 on placebo (2 capsules a day for 60 days) and found no improvement in choice accuracy or reaction time, only changes in EEG network measures (connectivity between brain regions measured with scalp electrodes). ⁽³⁾ Funders: the first by a grant from ics-digital, a company with no stated link to the maker; the second by Opti Nutra (named as Mind Lab Pro’s maker on the vendor blog), with no sponsor access to or influence on the data; the third by Performance Lab Group, which the Mind Lab Pro product page calls its parent company.

Three ingredients match a human-trial dose at one serving (equal to or above it). Citicoline 250 mg equals the lower arm of a 28-day trial in 75 healthy adolescent males, in which citicoline (250 or 500 mg, arms analysed together) improved attention (p = 0.02) and psychomotor speed (p = 0.03) against placebo. ⁽⁴⁾ Phosphatidylserine 100 mg equals the low-dose arm of a 6-month trial in 78 adults aged 50 to 69 with memory complaints: scores rose in every group including placebo, delayed recall improved more on soy phosphatidylserine only in the subgroup with low baseline scores (p < 0.05), and no adverse event was linked to it; Mind Lab Pro uses sunflower-derived phosphatidylserine. ⁽⁵⁾ L-theanine 100 mg matches the 100.6 mg capsule of a trial in middle-aged and older adults (26 theanine, 24 placebo), where one dose lowered reaction time on the Stroop test (naming the ink colour of colour words) but 12 weeks of daily use had no effect on attention. ⁽⁶⁾

The Mind Lab Pro formula contains 500 mg of lion’s mane, about half the 3 x 350 mg (1,050 mg) a day of erinacine A-enriched mycelium given for 49 weeks to people with mild Alzheimer’s disease; their MMSE score (Mini-Mental State Examination, a 30-point memory and orientation test) rose from 21.75 to 23.2 within the treated group (p = 0.035), but no comparison with placebo was significant. ⁽⁷⁾ Mind Lab Pro states no erinacine content.

Bacopa monnieri (water hyssop) is a common nootropic additive. Mind Lab Pro’s 150 mg is half the 300 mg a day of BacoMind that improved delayed recall in 98 healthy adults over 55 (p = 0.001; 81 completed) and caused more frequent stools, abdominal cramps and nausea; 2 servings (4 capsules) reach 300 mg of extract. ⁽⁸⁾ BacoMind is standardised to 40% to 50% bacosides (120 to 150 mg of bacosides a day), so Mind Lab Pro’s 36 mg of bacosides per serving is 24% to 30% of the trial amount, and 72 mg at 4 capsules is 48% to 60%.

The remaining ingredients sit below the doses tested in humans. Maritime pine bark 75 mg is half the 150 mg of Pycnogenol a day that improved working memory in 101 adults aged 60 to 85 over 3 months; the label names no brand. ⁽⁹⁾ N-acetyl L-tyrosine 175 mg supplies about 142 mg of tyrosine by mass (175 x 0.81, the tyrosine share of N-acetyl L-tyrosine by molar mass), which is about 7.1% of the 2.0 g L-tyrosine dose that gave 91.4% accuracy in the 2-back task (a working-memory test of whether the current item matches the one two steps earlier) against 86.5% after placebo (p = 0.02) in a crossover trial of 22 women (see the L-tyrosine page). ⁽¹⁰⁾ Vitamin B6 2.5 mg is 12.5% of 20 mg and folate 100 mcg is 12.5% of 0.8 mg, the daily doses that, given together with 0.5 mg of B12, slowed brain atrophy in mild cognitive impairment, 0.76% against 1.08% a year (P = 0.001). ⁽¹¹⁾

NooCube

NooCube, one of the branded nootropic supplements for brain fog, lists 12 ingredients in a 2-capsule serving on its current US label, with no caffeine and no huperzine A: Bacopa monnieri 250 mg (20% bacosides), L-tyrosine 250 mg, cat’s claw 4:1 extract 175 mg, L-theanine 100 mg, choline 100 mg (from 250 mg choline bitartrate), Panax ginseng 8:1 extract 20 mg, Lutemax 2020 marigold extract 20 mg, trans-resveratrol 14.3 mg, pterostilbene 140 mcg, vitamin B1 1.1 mg, vitamin B12 2.5 mcg and biotin 50 mcg. The label directions are 2 capsules with water, with or without food. More detail: NooCube review.

Of the 12 ingredients, 4 are compared with a trial dose here: L-tyrosine 250 mg is 12.5% of the 2.0 g single dose that improved working memory accuracy, and L-theanine 100 mg matches the 100.6 mg trial dose. NooCube’s bacopa (250 mg, 50 mg bacosides) is 83% of the 300 mg BacoMind trial dose by extract weight and 33% to 42% of the trial’s 120 to 150 mg of bacosides, and supplies more bacosides per serving than Mind Lab Pro (36 mg). Vitamin B12 2.5 mcg is 104% of the Daily Value and 0.25% of the 1,000 mcg a day that corrected mild B12 deficiency in older adults. The other 8 ingredients have no trial on this page, so their amounts are not compared.

Rhodiola Rosea

Rhodiola rosea root extract SHR-5 at 576 mg a day (4 tablets) for 28 days lowered burnout scores and improved attention measures (omissions, meaning missed targets, and variability of reaction speed) against placebo in 60 adults aged 20 to 55 with stress-related fatigue syndrome, with no adverse events during the study; both groups also improved on several measures, a placebo effect. ⁽¹²⁾ The trial was funded by the Swedish Herbal Institute, a company that commercialises rhodiola products and whose associate helped write the protocol; the paper states the sponsor had no role in data collection or analysis.

The 576 mg trial dose is 11.5 times the 50 mg of rhodiola in one Mind Lab Pro serving, so reaching it takes a single-ingredient extract. Dosing, standardisation and side effects are covered in the Rhodiola rosea profile.

Best Vitamins for Brain Fog and Omega-3 Fats

The vitamins with trial data on thinking are vitamin D (2,000 IU a day gave better memory scores after 1 year than 600 or 4,000 IU in women whose levels were low; see Vitamin D below) and vitamin B12 (it corrects a deficiency, but its trial found no cognitive gain); DHA and omega-3 are fats rather than vitamins, and iron is a mineral.

For a foggy brain and memory, B vitamins, vitamin C, iron, magnesium and zinc take part in energy-yielding metabolism, DNA synthesis, oxygen transport and neuronal function, which makes them critical for brain and muscle function. ⁽¹³⁾

A multivitamin for brain fog has no trial on this page: the nutrient trials here tested single nutrients (vitamin D, vitamin B12, iron, DHA and omega-3) rather than a multivitamin.

DHA

DHA at 1.16 g a day for 6 months sped episodic and working memory reaction times against placebo by 0.18 and 0.36 standard deviations (SD, a unit of how widely scores spread; P = 0.02 and P = 0.002) in 176 healthy adults aged 18 to 45 with a low DHA intake; episodic memory (memory for events) improved in women (0.28 SD, P = 0.006) and working memory reaction time in men (0.60 SD faster, P = 0.001); more people on DHA reported burping (49% against 22%) and unpleasant breath (39% against 18%), rated minor. ⁽¹⁴⁾

The trial gains appeared in people who ate little DHA. The 1.16 g dose is 2.3 times the 500 mg of DHA in the omega-3 trial below, and the trials enrolled different groups (aged 18 to 45 with low intake, against aged 70 to 79), so dose alone does not explain the different results.

Omega 3 Fatty Acids

Fish oil with 200 mg EPA and 500 mg DHA a day (700 mg) for 24 months raised serum EPA (49.9 against 39.1 mg/L, 27.6% higher) and DHA (95.6 against 70.7 mg/L, 35.2% higher), yet cognitive scores did not differ from olive oil in 867 healthy adults aged 70 to 79, and neither arm declined over the 2 years; minor adverse events were similar between the arms. ⁽¹⁵⁾ The only positive omega-3 trial on this page used DHA alone (see DHA above).

Vitamin B12

Vitamin B12 is involved in forming nerve cells and blood, and vitamin B12 deficiency has been associated with a few neurocognitive disorders; in people with suspected dementia or cognitive decline, B12 supplementation does not appreciably change cognitive function, and oral B12 is as effective as injections when a deficiency is confirmed. ⁽¹⁶⁾

In 195 adults aged 70 and over with mild B12 deficiency, 1,000 mcg of oral B12 a day for 24 weeks corrected the deficiency but did not improve cognitive function, and memory improved more on placebo than on B12 alone (P = 0.0036); no adverse effects from treatment were reported. ⁽¹⁷⁾

Low vitamin B12 does not always produce brain fog; trouble concentrating and feeling “off” are commonly reported with it, and a blood test confirms a deficiency before B12 is used.

Vitamin D

In overweight or obese postmenopausal women whose blood 25-hydroxyvitamin D was already below 30 ng/mL, 2,000 IU a day for 1 year gave better learning and memory scores after the year than 600 or 4,000 IU (tests were given only after treatment), and 4,000 IU gave slower reaction time than 600 IU. ⁽¹⁸⁾ All participants started low and the trial had no group with adequate levels, so it compared doses, not low against normal vitamin D, and every group took at least 600 IU a day.

What Deficiency Causes Brain Fog?

Iron deficiency was linked to slower and less accurate thinking in young women; low vitamin B12 and vitamin D are covered under their own headings above. Each deficiency is confirmed with a blood test and treated with the missing nutrient, but correcting B12 deficiency did not improve cognition in the 195-adult trial under Vitamin B12, so a measured deficiency is a reason to treat it, not a promise that the fog clears. The iron and vitamin D trials enrolled women only (iron: aged 18 to 35; vitamin D: postmenopausal), and no trial on this page tested a supplement for menopause-related brain fog.

Iron: in women aged 18 to 35, those with iron deficiency anaemia (n = 34) were less accurate and slower on cognitive tasks than iron-sufficient women (n = 42; P = 0.011 and P = 0.038), and over 16 weeks (113 of 149 women retested) of 60 mg elemental iron a day (as 160 mg slow-release ferrous sulfate) or placebo, women whose serum ferritin (the blood marker of iron stores) rose had improvements that were 5 times (attention and learning) and 7 times (memory) those of women whose ferritin did not rise. ⁽¹⁹⁾ Iron supplements commonly cause constipation, nausea and stomach upset, and taking iron without a confirmed deficiency risks iron overload, so iron is started after a blood test. Iron is commonly reported to reduce the absorption of thyroid hormone medicine and of tetracycline and quinolone antibiotics (they are taken hours apart), and iron tablets are a leading cause of poisoning deaths in young children, so they are kept out of reach.

What Clears Brain Fog Naturally?

Brain fog commonly clears when its cause is addressed: regular sleep of 7 to 9 hours, stress management, regular exercise, less alcohol and a review of medicines that slow thinking are the usual first steps (general guidance, commonly reported). Supplements do not replace a varied diet and exercise.

A doctor is the next step when brain fog persists despite good sleep and diet, gets worse, or comes with other symptoms; a doctor can test for thyroid problems, anaemia, low vitamin B12 and sleep disorders before any supplement is started.

Other Supplements With Trial Data for Fatigue and Memory

For fatigue and brain fog together, rhodiola (stress-related fatigue), iron (when deficient) and reishi (neurasthenia, a fatigue disorder) have placebo-controlled trial data on this page; the magnesium trial below tested memory in healthy adults, not fatigue. Among natural nootropics for brain fog, the plant and mushroom extracts on this page are rhodiola, bacopa, reishi and lion’s mane; natural does not mean free of side effects (see Side effects).

Reishi

Reishi (Ganoderma lucidum) polysaccharide extract at 1,800 mg three times a day (5,400 mg) for 8 weeks lowered fatigue scores by 28.3% from baseline against 20.1% on placebo (end-of-treatment fatigue 5.23 against 5.80 on a 10-point scale, P = .021, although the change over time did not differ significantly between groups, P = .16) in adults with neurasthenia, and 32 of 62 (51.6%) against 15 of 61 (24.6%) were rated more than minimally improved on the doctor’s global rating (P = .002). Mild side effects were reported 3 times on reishi and 2 times on placebo (nausea, dry mouth, vomiting), with no blood, liver or kidney toxicity; 4 people on reishi and 5 on placebo dropped out. The capsules were a gift from Encore International Corp., which also supported the study; Ganopoly has been marketed as an over-the-counter product. ⁽²⁰⁾ That 27.0-percentage-point difference in responders means about 1 extra responder for every 4 people treated over 8 weeks.

Magnesium

A formula of magnesium L-threonate with phosphatidylserine and vitamins C and D, at 2 g a day for 30 days, improved all five subtests of a clinical memory test and the overall memory score against placebo in 109 healthy adults aged 18 to 65. ⁽²¹⁾ The trial tested the combination, not magnesium alone, and magnesium supplements commonly cause loose stools or diarrhea at higher doses. Magnesium is commonly taken hours apart from tetracycline or quinolone antibiotics, bisphosphonates and thyroid hormone, and people with kidney disease need a doctor’s advice first.

How the Supplements for Brain Fog Are Ranked

The ranking applies the four criteria stated at the top of the page in that order, so placebo-controlled human evidence (including how closely the trial population matches brain fog) outranks label amount, side effects and cost per day.

Mind Lab Pro ranks first among stacks because it is the only pick with placebo-controlled trials of its finished formula, even though NooCube costs less per day. Among single supplements, rhodiola ranks first (a fatigue syndrome, with attention measured), reishi second (a larger positive trial in a fatigue disorder, but it measured symptoms, not attention or memory), DHA third (positive trial, low-intake adults), omega-3 fourth (no cognitive change) and vitamin B12 fifth (memory improved more on placebo).

A single supplement is ranked when it has its own section on this page and a placebo-controlled trial of that supplement alone, at a stated dose, reported a comparison with placebo on a fatigue, memory, attention or reaction-time measure. Vitamin D is not ranked because its trial compared three doses (600, 2,000 and 4,000 IU) and every group received at least 600 IU (the paper’s control group), so no group took placebo without vitamin D; iron is not ranked because its trial reports a comparison by ferritin response, not iron against placebo; the magnesium trial tested a combination; ingredients covered inside the Mind Lab Pro and NooCube sections (bacopa, phosphatidylserine, citicoline, L-theanine, L-tyrosine, pine bark, lion’s mane) are scored through those stacks; ginkgo is not ranked because its placebo-controlled trial found no difference on any outcome and it is not in either stack; the trial is below. Funders of the ranked single-supplement trials: the Swedish Herbal Institute (rhodiola); Encore International Corp., which supplied the capsules and supported the study (reishi); grants from Massey University, the Neurological Foundation of New Zealand and the Oakley Mental Health Research Fund, with capsules supplied by Efamol Ltd and Health & Herbs International Ltd (DHA); the UK Food Standards Agency (omega-3); and ZON-MW, Kellogg’s Benelux and two foundations (vitamin B12).

Placebo-controlled human evidence

Stacks and single supplements are ranked separately because a stack with no formula trial cannot be compared on this criterion with a single extract that has one. The lion’s mane memory trial enrolled people with mild Alzheimer’s disease, not healthy adults with brain fog. Ginkgo biloba, a common brain fog ingredient that is not ranked here, has a null trial: 40 mg three times a day for 6 weeks did not differ from placebo on any outcome in 230 adults older than 60 (115 per arm). ⁽²²⁾ Outcomes in these trials were measured at 30 days (Mind Lab Pro, largest trial), 28 days (rhodiola), 12 weeks (bacopa), 24 weeks (B12), 6 months (DHA) and 24 months (omega-3); these are the points at which results were measured, not how soon each supplement starts to work.

Label amount against trial dose

Both stacks print every ingredient amount with no proprietary blend (11 ingredients in Mind Lab Pro, 12 in NooCube). “Matches a trial dose” means equal to or above it: Mind Lab Pro’s lion’s mane at 4 capsules (1,000 mg) is 95% of its 1,050 mg trial dose and is not counted, and at 4 capsules pine bark (150 mg) also reaches its trial dose, while bacopa reaches the trial’s extract weight (300 mg) but not its bacoside amount (72 mg, 48% to 60% of the trial’s 120 to 150 mg). Mind Lab Pro states its extract standardisations (24% bacosides, 3% rosavins and 1% salidrosides, 95% proanthocyanidins) but not the chemical forms of its NutriGenesis B vitamins; NooCube states its vitamin forms (thiamine HCl, cyanocobalamin, D-biotin) and a 20% bacoside standardisation. A seal or batch certificate from an independent testing lab (such as NSF, USP or ConsumerLab) is the usual check that a capsule holds what the label states. Mind Lab Pro’s vendor page says it is third-party tested, and NooCube’s vendor page mentions 3rd-party testing of its formula and a GMP-certified facility; neither names a lab, seal or result, so independent verification is not established for either.

Side effects

Trial-reported side effects are in the table and the sections above (bacopa stool changes, cramps and nausea; phosphatidylserine with no adverse event linked to it; vitamin D at 4,000 IU a day slowing reaction time). The following cautions are commonly reported or inferred from the ingredients, not findings of those trials:

• Mind Lab Pro: bacopa and rhodiola are commonly reported to cause stomach upset or restlessness in some users; avoid N-acetyl L-tyrosine with levodopa, thyroid hormone medicine and MAO-inhibitor antidepressants, and ask a pharmacist or doctor; bacopa may slow the heart rate and calls for a pharmacist’s advice with thyroid medicine and cholinergic drugs; pine bark extract is commonly flagged with blood thinners and may lower blood pressure and blood sugar; lion’s mane is avoided with a mushroom allergy; citicoline occasionally causes headache or trouble sleeping.
• NooCube: bacopa-type stomach effects are expected at 250 mg; avoid L-tyrosine with levodopa, thyroid hormone medicine and MAO-inhibitor antidepressants; avoid cat’s claw with blood thinners and before surgery, and avoid Panax ginseng with MAO-inhibitor antidepressants and with diabetes medicine unless a doctor supervises (reports differ on Panax ginseng with blood thinners); ask a pharmacist or doctor before any of these. Panax ginseng commonly causes trouble sleeping, and both herbs are commonly advised against with autoimmune disease or immune-suppressing medicine; cat’s claw is avoided in pregnancy and breastfeeding, and Panax ginseng calls for a doctor’s advice in pregnancy, breastfeeding and children.
• Rhodiola: restlessness, irritability, trouble sleeping, dizziness, headache and dry mouth are commonly reported; avoid use alongside antidepressants and ask a pharmacist or doctor, because of possible effects on serotonin and dopamine pathways (inferred from its mechanism); an interaction with the blood-pressure drug losartan has been reported.
• DHA and omega-3 fish oil: fishy aftertaste, burping and loose stools are commonly reported, and high doses are commonly said to add to bleeding risk with blood thinners, so a pharmacist or doctor should know about fish oil use before surgery or with blood thinners; fish oil is avoided with a fish or shellfish allergy unless the label states otherwise.
• L-theanine and reishi: avoid L-theanine in pregnancy and breastfeeding and ask a pharmacist or doctor; L-theanine is generally well tolerated, some people report drowsiness, and it may add to sedatives or blood-pressure medicine (inferred from its effects); reishi commonly causes dry mouth, stomach upset or dizziness, may add to the effect of blood thinners and blood-pressure medicine, and rare liver injury is reported with reishi powder.
• Vitamin B12: commonly considered safe at label doses, because the body excretes the excess in urine.
• Vitamin D: 4,000 IU a day is the usual adult upper limit; above it, high blood calcium is the main risk, and thiazide diuretics or kidney disease add to it.
• Caffeine: none on the Mind Lab Pro and NooCube labels or in the single supplements; Mind Lab Pro does list rhodiola and N-acetyl L-tyrosine, which are commonly reported to cause restlessness.
• Everyone: pregnancy, breastfeeding, children, bipolar disorder (rhodiola and Panax ginseng may be stimulating), thyroid disease, high or low blood pressure, diabetes medicine, blood thinners and planned surgery, MAO-inhibitor and other antidepressants, sedatives, severe liver or kidney disease and an allergy to any ingredient are commonly given as reasons to ask a doctor or pharmacist before using any of these supplements; most have no safety data in pregnancy or children. L-theanine and bacopa, which both stacks contain, are advised against in pregnancy and breastfeeding unless a doctor advises.

Vyvamind is a separate stack whose listing names caffeine among its ingredients; it is not scored on this page.

In the US, FDA does not approve dietary supplements for safety and effectiveness. ⁽²³⁾ None of the supplements here is FDA-approved as a drug for brain fog.

Cost per day

One-bottle price: Mind Lab Pro costs $69.00 for 60 capsules, $2.30 a day at 2 capsules and $4.60 a day at 4 capsules. NooCube costs $64.99, its discounted single-bottle price, which is $2.17 a day, so at the one-bottle prices NooCube is $0.13 a day cheaper. NooCube’s $79.99 retail price ($2.67 a day) is a reference figure, not the price charged, and is not used in the comparison. Subscription rates are shown for reference and do not decide the ranking: Mind Lab Pro is $1.56 a day on the first order of the 4-month subscription ($187.68 for 4 bottles) and $1.73 a day on renewals ($207.00), and NooCube is $1.10 a day on the 5-bottle subscription ($165.74; its page does not say whether renewals cost more). Single supplements are sold under different brand labels, so no cost per day is stated; cost is the last criterion, so a missing price does not change their rank.

Supplements & Vitamins for Brain Fog FAQs

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