Is a higher dose always better?

No. Dose-fit rewards landing inside the range studied for the outcome — over-dosing (common with melatonin) or under-dosing both lower the score. The goal is the effective dose, not the biggest number.

What does the Value score mean?

The Value score compares a product's price per serving with clinically relevant products ranked for the same outcome. A score of 50 is the typical price; above 50 means better value than typical, while below 50 means the product costs more than typical. It is a 0–100 value signal, not a percentile.

Why is the cheapest product not #1?

Cost is only one input. The cheapest pick here is a citrate form with weaker absorption and a stock-risk flag, so it leads on Value-for-cost but trails on the composite that also weighs evidence, dose fit and availability.

Are these affiliate links?

Retailer links may be affiliate links and DoseRank may earn a commission. Rankings and placement are determined by the scoring model only — never by payment from a brand.

Is this medical advice?

No. DoseRank summarizes evidence to help you choose; it is not a substitute for a clinician, especially if you are pregnant, breastfeeding, on medication, or managing a health condition.

Improve memory

What this outcome means

Memory is how well you take in, hold onto, and call back information, from names and lists to where you left your keys. On DoseRank it maps to a defined health outcome built from human studies on recall and recognition tasks, working-memory span, and learning-retention scores – data sourced from open sources and specialized resources. DoseRank is not medical advice.

Who it's for

Everyday forgetfulnessMisplacing items or blanking on names mid-conversation.

Aging recallMemory that feels slower or less sharp than it once was.

Heavy mental loadStudents and professionals juggling more than memory can hold.

Stack buildersAlready taking supplements such as Bacopa Monnieri or Huperzine A and want the dose right.

Evidence level

85Strong

Bacopa Monnieri and Huperzine A – have strong public evidence, and Phosphatidylserine and Ginkgo Biloba add supporting evidence. DoseRank looks at both evidence quality and formula fit. A DoseFit Score of 69 means this product's ingredient forms and doses are close to what was used in the studies behind this ranking - DoseRank weights each product ingredient.

Best ingredients

Bacopa Monnieri and Huperzine A lead this outcome, supported by Phosphatidylserine and Ginkgo Biloba.

Dose partly matchedDoseFit 69

Scores reward products dosed inside or above the studied range, not just the right ingredient. Examples: In range: Bacopa Monnieri 300 mg vs 300-600 mg, Huperzine A 100 mcg vs 50-200 mcg; Below range: DMAE 50 mg vs 100-500 mg.

Thin spots

DMAE has low evidence for this outcome, so it is flagged as an evidence gap rather than treated as a proven driver.

Processed

4.2k

Available

4.2k

Ingredients

Brands

376

Coverage

100%

How to read the scores

What every metric means

Each score is 0–100. Higher is better for every metric below.

CompositeThe overall DoseRank score — a weighted blend of clinical strength, evidence, dose fit, trust and value.Higher is better

ClinicalHow strongly the formula's ingredients and doses match what clinical studies used for this outcome.Higher is better

EvidenceHow much published human research backs the formula's key ingredients for this outcome — both how many studies exist and how strong they are.Higher is better

ValueHow the price per serving compares with similar products for this outcome — 50 is the typical price, higher means better value for your money.Higher is better

TrustHow well customers rate this product, with extra weight given to ratings backed by a large number of reviews.Higher is better

PopularityHow strongly this product sells compared with the other ranked products for this outcome.Higher is better

This legend covers the scores on this page — for data sources, scoring weights, and limits, read the full methodology →

Not sure which is right for you?

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Take 60-sec quiz

Get a personal report

A saved, shareable breakdown: your matched products, dose math, interaction flags to discuss with a clinician, and a price-tracked stack you can revisit.

Questions

Frequently asked

Each product gets a composite score blending clinical strength, evidence, dose fit, trust and value. The #1 on the DoseRank tab has the highest composite; the other tabs re-rank the same products by Value, Trust, or Popularity. Placement is never paid.

Improve memory

What this outcome means

Who it's for

Everyday forgetfulnessMisplacing items or blanking on names mid-conversation.

Aging recallMemory that feels slower or less sharp than it once was.

Heavy mental loadStudents and professionals juggling more than memory can hold.

Stack buildersAlready taking supplements such as Bacopa Monnieri or Huperzine A and want the dose right.

Evidence level

85Strong

Best ingredients

Bacopa Monnieri and Huperzine A lead this outcome, supported by Phosphatidylserine and Ginkgo Biloba.

Dose partly matchedDoseFit 69

Thin spots

DMAE has low evidence for this outcome, so it is flagged as an evidence gap rather than treated as a proven driver.

Processed

4.2k

Available

4.2k

Ingredients

Brands

376

Coverage

100%

Relevant ingredients

Which ingredient types matter for memoryOpen to see which ingredient types matter for memory

1.8k products across 5 ingredient types — open to filter the ranking.

Use types to filter ranked products

Botanicals/Herbal Extracts

374 products

Concentrated plant and herbal extracts standardized to actives. Potency depends on the extract ratio and marker content, not raw weight.

Typical: , ,

Antioxidants & Bioactive Compounds

137 products

Molecules that neutralize free radicals and tune cell signaling. Helpful in balance; mega-doses can blunt the body's own adaptive defenses.

Typical: , ,

Alkaloids & Stimulants

65 products

Plant-derived nitrogen compounds like caffeine that stimulate the nervous system. Effective but dose-sensitive, with real tolerance and dependence risk.

Typical:

Fatty Acids & Lipids

1.1k products

Dietary fats including omega-3s and structural lipids. Look at the active EPA/DHA amounts and freshness, since oils oxidize and turn rancid.

Typical:

Minerals & Trace Elements

64 products

Inorganic nutrients from calcium to zinc. The chemical form drives absorption – chelates and citrates usually beat cheap oxides.

Typical:

Top decision cards

Best products for memory

Ranking by · Composite outcome score

Best overall — the composite outcome score.

Top pick · DoseRank

Why this ranks #1 for memory

Vitacost, Synergy®, Cognitive Support, 60 Capsules

Vitacost$0.76 / serving0.0 · 0Available now

Also helps with

Cognitive function

Activities of daily living

Processing speed

Why this ranks here

Evidence fitBacopa Monnieri and Huperzine A lead the evidence here, backed by Phosphatidylserine and Ginkgo Biloba.
Dose fit4 of 5 dosed ingredients land in the studied range. Bacopa Monnieri at 300 mg lands inside the studied 300-600 mg window.
Price / serving$0.76 per serving — high price tier for this outcome.
AvailabilityIn stock across major retailers; 99% availability confidence.
TrustLimited trust signals so far for this listing.

The numbers

300 mgIn rangeinside the studied 300-600 mg window

100 mcgIn rangeinside the studied 50-200 mcg window

100 mgIn rangeinside the studied 100-300 mg window

120 mgIn rangeinside the studied 120-240 mg window

50 mgBelow rangebelow the studied 100-500 mg window

500 mg

500 mcg

Compare top 3 Product data Open at retailer

The rest of the ranking · DoseRank

Top 10 ranked products

California Gold Nutrition, Huperzine A, 250 mcg , 90 Veggie Capsules

California Gold NutritionClinical89Dose fit91Popularity80$0.20/ serving

Gorilla Mind, Advanced Nootropic Formula, 150 Capsules

Gorilla MindClinical98Dose fit75Popularity50$1.35/ serving

Nutricost, Huperzine-A, 200 mcg , 240 Capsules

NutricostClinical89Dose fit90Popularity76$0.07/ serving

Doctor's Best, Natural Brain Enhancers, 60 Veggie Caps

Doctor's BestClinical91Dose fit53Popularity91$0.69/ serving

Source Naturals, Higher Mind™, 90 Tablets

Source NaturalsClinical99Dose fit79Popularity30$1.62/ serving

California Gold Nutrition, Brain Health with Alpha-Glycerophosphorylcholine, Calcium, Phosphorus and Phosphatidylserine, 60 Veggie Capsules

California Gold NutritionClinical91Dose fit53Popularity96$0.73/ serving

Source Naturals, Brain Charge®, 60 Tablets

Source NaturalsClinical98Dose fit67Popularity30$1.47/ serving

NaturesPlus, Brainceutix® Boost, 90 Capsules

NaturesPlusClinical97Dose fit67Popularity30$1.45/ serving

LifeSeasons, Clari-T™, Cognitive Support, 60 Veg Capsules

LifeSeasonsClinical97Dose fit79Popularity30$1.47/ serving