Best Memory Supplements (2026): 8 Checked Against the Studies
By Erin Rose Updated October 13, 2026 Methodology
Buy Centrum Silver Adults 50+. In COSMOS, a large study of adults 60 and older, this daily multivitamin gave a small lift in memory scores. It costs $0.09 a day. The famous memory pills cost 10 to 20 times more, with weaker proof.
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Our pick: the one tested in big trials
- Per day
- $0.09on Amazon
- Tested in
- The COSMOS study
- Pills
- 1 tablet
- Iron
- None
Our take
In COSMOS, a large study of adults 60 and older, people who took Centrum Silver every day did slightly better on memory tests than people on a placebo. The gain was small, about 2 years of normal brain aging, and an older 11-year trial in men found no memory gain. Even so, no memory pill on this page has better proof, and it costs $0.09 a day.
The label
Testing record
- NSF/ANSI 173: “Centrum Silver Adults 50+ Tablets” is on NSF’s supplement list (searched October 13, 2026). See the listing
Citicoline at the trial dose
- Per day
- $0.43on Amazon
- Citicoline
- 500 mg
- Pills
- 1 capsule
- Lasts
- 60 days
Our take
A 12-week trial gave 500 mg of Cognizin citicoline a day to 100 healthy adults aged 50 to 85 with mild memory complaints. Their memory scores rose more than on a placebo. It is one trial, and its authors came from Cognizin’s maker and a research company. This bottle has the same dose and brand for $0.43 a day; Qunol Memory Plus has it too, for $1.50.
Testing record
Not found on any testing list we check.
Not on NSF’s supplement list. Its citicoline is Cognizin, the brand used in the trial.
Bacopa at the trial dose
- Per day
- $0.19on Amazon
- Bacopa extract
- 450 mg
- Bacosides
- 40%
- Pills
- 1 capsule
Our take
Small trials gave 300 to 450 mg of bacopa extract a day for 12 weeks. People recalled more words than on a placebo; most other tests changed little. It takes weeks to work, and it can upset your stomach. $0.19 a day.
Testing record
Not found on any testing list we check.
Not on NSF’s supplement list. Sold by Amazon.
Memory problems that are new or getting worse? See your doctor first. Thyroid problems, depression and some medicines can affect memory, and they can be treated (NIH). Low vitamin B12 is common in older adults, and a blood test can check it (NIH).
See all 8 products we checked.
Every product we checked, cheapest a day first
These are the best-selling memory pills on Amazon, plus the three products that match the studies. For each one, we read the label, found the dose the studies used, and priced a day.
| Product | The proof | Per day |
|---|---|---|
| Centrum Silver Adults 50+ Multivitamin, 1 tablet. Studies: this brand, 1 tablet a day. | Small gain in one large study | $0.09 |
| NOW Bacopa Extract Bacopa extract 450 mg. Studies: 300 to 450 mg a day. | Small 12-week trials | $0.19 |
| Life Extension Cognizin Citicoline 500 mg. Studies: 500 mg a day. | One 12-week trial | $0.43 |
| Neuriva Original Coffee fruit 100 mg, phosphatidylserine (PS) 100 mg. Studies: this exact pill, in its maker’s trial. | One company-paid trial | $0.95 |
| Prevagen Regular Strength Apoaequorin 10 mg. Studies: this exact pill, in its maker’s study. | Study missed its main goal | $1.13 |
| Neuriva Plus Coffee fruit 200 mg, PS 100 mg, B vitamins. Studies: PS 300 mg a day. | Not tested as this formula | $1.33 |
| Qunol Memory Plus Citicoline 500 mg, magnesium threonate. Studies: citicoline 500 mg a day. | One 12-week citicoline trial | $1.50 |
| Onnit Alpha Brain Bacopa 100 mg in a blend, + 10 more. Studies: bacopa 300 to 450 mg a day. | One company-paid trial, ages 18–35 | $1.78 |
- Centrum Silver ($0.09) is our pick: the only product here tested on memory in a large study of older adults, and the cheapest a day.
- Prevagen Regular Strength ($1.13) is the top seller. It is on NSF’s supplement list, which checks that the bottle matches the label. The proof that it helps memory is weak.
- Neuriva Plus ($1.33) has 100 mg of PS. The PS trials the FDA reviewed used 300 mg a day.
- Alpha Brain ($1.78) has 100 mg of bacopa, a third of the low trial dose, inside blends that hide most of the other amounts.
The study behind our pick
COSMOS is a large study of more than 21,000 U.S. adults aged 60 and older. Three parts of it tested whether a daily multivitamin helps memory and thinking. The multivitamin was Centrum Silver.
- COSMOS-Web: 3,562 older adults took memory tests online for 3 years. The multivitamin group remembered more words after one year. The researchers put the gain at about 3 years of normal memory aging.
- COSMOS-Mind: 2,262 adults (average age 73) took tests by phone for 3 years. Overall thinking and memory scores were a little better on the multivitamin.
- All three together: pooling about 5,200 people, the multivitamin gave a small, clear gain in memory. The researchers put it at about 2 years of normal thinking decline.
- But an older trial found no gain. PHS-II, an 11-year trial in men that also used Centrum Silver, found no memory benefit.
Who paid: COSMOS had NIH grants. Mars gave a grant and study pills, and Pfizer gave some pills. The researchers say the companies had no role in the design or analysis (more on who paid).
The National Institute on Aging sums it up: “At this time, no vitamin or supplement is recommended for preventing Alzheimer’s or other forms of cognitive decline. However, recent clinical trials have shown that taking a daily multivitamin may improve memory and cognition in older adults” (NIA). The proof is small and mixed, but it is more than any memory pill here has. If you already take a multivitamin for adults 50+, you likely do not need another memory pill.
Our pick for memory is not our overall multivitamin pick. For that, and for multivitamins by age, see the best multivitamins.
Prevagen, Neuriva and Alpha Brain: what is behind them
- Prevagen (apoaequorin, a jellyfish protein). According to the FTC, the company’s own placebo study did not beat the placebo on any of its nine memory tasks, and the company then ran more than 30 more analyses of small groups. In March 2024 a federal jury found that eight Prevagen memory claims lacked scientific support (court order). A judge then barred all eight nationwide, including “clinically shown to improve memory.” The company and the government have appealed; we found no ruling as of October 13, 2026 (case summary).
- Neuriva (coffee fruit extract and PS). Its maker paid for one 6-week trial of Neuriva Original’s formula in 138 adults aged 40 to 65 with memory complaints. They did better on some memory tasks than on a placebo, but not on others, and not on a memory questionnaire. Neuriva Plus has twice the coffee fruit and adds B vitamins; that formula was not tested.
- Alpha Brain (a blend of 11 ingredients). One 6-week trial, paid for by its maker, tested it in 63 adults aged 18 to 35. It found better word recall. It was not tested in older adults.
- Qunol Memory Plus has the 500 mg of Cognizin citicoline used in the trial, plus magnesium threonate. It costs $1.50 a day against $0.43 for the citicoline alone.
Comparing the two biggest names? Prevagen vs Neuriva: doses, proof and cost a day, side by side.
What did not help in the big trials
- Ginkgo. In a 6-year trial of 3,069 adults aged 75 and older, 120 mg twice a day did not lower the rate of dementia.
- Fish oil. In a 2- to 3-year trial of more than 3,400 adults aged 60 and older, 1 g a day did not change memory or thinking scores.
- B vitamins on their own. The NIH says short-term use of B6, B12 and folic acid has not been shown to improve thinking in older adults. A multivitamin already has them.
Who should buy which
- You are 60 or older and want the best-tested optionCentrum Silver Adults 50+
The multivitamin used in the COSMOS study, 1 tablet, $0.09 a day. Check price
- You already take a multivitaminLife Extension Citicoline (Cognizin) 500 mg
The trial dose and brand, $0.43 a day. Check price
- You want an herb and can wait 12 weeksNOW Bacopa Extract 450 mg
The trial dose range, $0.19 a day. Check price
- You want a brand-name memory pillNeuriva Original
The one formula its maker tested, $0.95 a day. Check price
Whichever you try, give it about 12 weeks, the length of the citicoline and bacopa trials. If you notice no change, stop.
More: citicoline, phosphatidylserine, lion’s mane, ginkgo and vitamin B12. This page is not medical advice.
Questions
What is the best supplement for memory?
A daily multivitamin made for adults 50 and older, such as Centrum Silver Adults 50+. In the large COSMOS study, adults 60 and older who took one did slightly better on memory tests than people on a placebo. The gain was small, and an older trial in men found none, but no memory pill has better proof. It costs $0.09 a day.
Do memory supplements like Prevagen and Neuriva work?
The proof is weak. According to the FTC, Prevagen’s own study did not beat the placebo on its main tests, and in 2024 a jury found its memory claims lacked scientific support; the company has appealed the court’s ban on those claims. Neuriva Original was tested by its maker in one 6-week trial of adults aged 40 to 65, with better results on some memory tasks and not others.
What should I check before buying a memory supplement?
See your doctor about memory problems that are new or getting worse. The NIH says treatable problems such as depression, reactions to medicines, and thyroid, liver or kidney problems can affect memory. Low vitamin B12 is also common in older adults, and a blood test can check it.
Do ginkgo or fish oil help memory?
Not in the big trials. A 6-year trial of ginkgo in more than 3,000 adults aged 75 and older did not lower the rate of dementia. A 2- to 3-year trial of fish oil in more than 3,000 adults aged 60 and older found no change in memory or thinking.
Sources
- Labels: NIH Dietary Supplement Label Database 293714 (Prevagen Regular Strength), 300906 (Neuriva Original), 300905 (Neuriva Plus), 302034 (Alpha Brain), 304931 (Centrum Silver Adults 50+). Amazon label photos for Qunol Memory Plus, NOW Bacopa and Life Extension Citicoline, read October 17, 2026.
- Testing: NSF/ANSI 173 listings for Centrum and Prevagen, searched October 13, 2026.
- Yeung LK, et al. “Multivitamin Supplementation Improves Memory in Older Adults: A Randomized Clinical Trial.” American Journal of Clinical Nutrition. 2023. PubMed 37244291 (COSMOS-Web)
- Baker LD, et al. “Effects of cocoa extract and a multivitamin on cognitive function: A randomized clinical trial.” Alzheimer’s & Dementia. 2023. PubMed 36102337 (COSMOS-Mind)
- Vyas CM, et al. “Effect of multivitamin-mineral supplementation versus placebo on cognitive function: results from the clinic subcohort of the COSMOS randomized clinical trial and meta-analysis of 3 cognitive studies within COSMOS.” American Journal of Clinical Nutrition. 2024. PubMed 38244989
- Nakazaki E, et al. “Citicoline and Memory Function in Healthy Older Adults: A Randomized, Double-Blind, Placebo-Controlled Clinical Trial.” Journal of Nutrition. 2021. PubMed 33978188
- Calabrese C, et al. “Effects of a standardized Bacopa monnieri extract on cognitive performance, anxiety, and depression in the elderly: a randomized, double-blind, placebo-controlled trial.” Journal of Alternative and Complementary Medicine. 2008. PubMed 18611150; Pase MP, et al. “The cognitive-enhancing effects of Bacopa monnieri: a systematic review of randomized, controlled human clinical trials.” 2012. PubMed 22747190
- Doma KM, et al. “A Randomized, Double-Blind, Placebo-Controlled, Parallel Study Investigating the Efficacy of a Whole Coffee Cherry Extract and Phosphatidylserine Formulation on Cognitive Performance of Healthy Adults with Self-Perceived Memory Problems.” Neurology and Therapy. 2023. PubMed 36929344 (Neuriva Original’s formula)
- Solomon TM, et al. “A randomized, double-blind, placebo controlled, parallel group, efficacy study of alpha BRAIN administered orally.” Human Psychopharmacology. 2016. PubMed 26876224
- Prevagen: People of the State of New York and FTC v. Quincy Bioscience, No. 17 Civ. 124 (S.D.N.Y.), order of May 3, 2024 (jury findings of March 11, 2024); FTC v. Quincy Bioscience, 2d Cir. summary order, February 21, 2019 (the company study as described in the complaint).
- FDA. Phosphatidylserine qualified health claim letters, May 13, 2003 and November 24, 2004 (enforcement discretion; trials used 300 mg a day).
- DeKosky ST, et al. “Ginkgo biloba for prevention of dementia: a randomized controlled trial.” JAMA. 2008. PubMed 19017911; Kang JH, et al. “Marine n-3 fatty acids and cognitive change among older adults in the VITAL randomized trial.” 2022. PubMed 35415212
- Grodstein F, et al. (PHS-II memory). Annals of Internal Medicine. 2013. PubMed 24490265.
- Prevagen injunction and appeal: Mintz, “Cognitive Dissonance”, February 20, 2026.
- NIH Office of Dietary Supplements. Vitamin B12 fact sheet.
- National Institute on Aging. Cognitive Health and Older Adults. NCCIH. 7 Things To Know About Dietary Supplements for Cognitive Function, Dementia, and Alzheimer’s Disease.