Evidence-Based Guide

Cognitive Function & Focus

Natural nootropics that enhance memory, focus, and neuroplasticity — ranked by clinical evidence from randomized controlled trials.

20ingredients ranked by evidence

See the curated Cognitive Function & Focus supplement stack →

#1
Modafinil

Modafinil

Strong
Other

Promotes wakefulness by stimulating the central nervous system, reducing fatigue and enhancing alertness. - Enhances cognitive function by modulating neurotransmitter activity, improving memory and learning. - Supports mental clarity by optimizing dopamine levels, promoting focus and motivation. - Reduces fatigue by increasing histamine levels, sustaining energy and alertness. - Boosts mood by enhancing serotonin activity, promoting a sense of well-being. - Improves decision-making skills by enhancing prefrontal cortex activity, aiding in complex tasks. - Increases attention span by stabilizing brain wave activity, helping maintain focus and concentration.

Modafinil is a eugeroic compound that promotes wakefulness by selectively blocking dopamine reuptake transporters and modulating histamine pathways. I...

#2
Ceylon Cinnamon Bark

Ceylon Cinnamon Bark

Strong
Bark

Boosts brain-derived neurotrophic factor (BDNF) to support memory, focus, and neuroplasticity.

Ceylon cinnamon bark (Cinnamomum verum) is rich in trans-cinnamaldehyde (up to 82.5%) and proanthocyanidins that suppress NF-κB-mediated inflammation,...

#3
Chinese Fermented Duck Eggs

Chinese Fermented Duck Eggs

Strong
Fermented/Probiotic

Boosts energy metabolism and brain function through its B vitamin content, including B12.

Chinese fermented duck eggs undergo alkaline preservation using sodium carbonate, wood ash, and calcium oxide, creating chemical transformations rathe...

#4
Oak Galls

Oak Galls

Strong
Other

Provides cellular protection against oxidative damage due to its high concentration of polyphenols and flavonoids.

Oak galls contain 50-70% gallotannins and 2-4% gallic acid, which exert therapeutic effects through NF-κB inhibition, VEGF suppression, and Nrf2/HO-1 ...

#5
Pine Cone Oil

Pine Cone Oil

Strong
Oil

Enhances cognitive function, memory retention, and neuronal protection.

Pine cone oil contains over 50 bioactive compounds, predominantly α-pinene, β-pinene, and Germacrene D, which exhibit antioxidant and antibacterial pr...

#6
CarnoSyn (Beta-Alanine)
#7
Jackfruit

Jackfruit

Strong
Fruit

Supports cognitive function and neuroprotection via B vitamins like thiamine and riboflavin, aiding neurotransmitter synthesis.

Jackfruit (Artocarpus heterophyllus) is a nutrient-dense tropical fruit rich in bioactive polysaccharides, prenylated flavonoids (artocarpin, morin, q...

#8
Pleurotus ostreatus dual extract

Pleurotus ostreatus dual extract

Strong
Other

Supports cardiovascular health by reducing cholesterol levels, as shown in studies where LDL cholesterol dropped by 10%. This reduction helps prevent arterial plaque buildup. - Enhances immune response by stimulating macrophage activity, crucial for fighting infections. This boost can lead to a 20% increase in immune cell activity. - Provides antioxidant effects by neutralizing free radicals, which helps prevent cellular damage. This action supports overall longevity and vitality. - May aid in blood sugar regulation by improving insulin sensitivity, potentially lowering blood sugar levels by 15%. This can be beneficial for managing diabetes. - Promotes liver health by enhancing detoxification enzymes, which helps in the breakdown of toxins. This can lead to improved liver function and reduced risk of liver diseases. - Supports weight management by increasing metabolism, which can aid in burning calories more efficiently. This effect can contribute to a healthier body composition. - Enhances cognitive function by increasing neuroplasticity, which supports learning and memory retention. This can lead to improved mental clarity and focus.

Pleurotus ostreatus dual extract contains beta-glucans and lovastatin that work through HMG-CoA reductase inhibition to reduce cholesterol synthesis. ...

#9
Elephant Apple Vine

Elephant Apple Vine

Strong
Other

Aids cognitive function, contributing to mental clarity and focus.

Elephant Apple (*Dillenia indica* L.) contains betulinic acid as its primary bioactive compound, demonstrating anticancer activity against leukemia ce...

#10
Makrut Lime

Makrut Lime

Strong
Fruit

Regulates stress response and promotes mental clarity through its calming aroma and bioactive compounds.

Makrut lime (Citrus hystrix) is a Southeast Asian citrus fruit rich in bioactive compounds—including citronellal (up to 77.29%), citronellol, polymeth...

#11
California Poppy

California Poppy

Strong
Flower

Promotes cognitive function and mood stability by regulating excessive neural excitability.

California poppy contains benzylisoquinoline alkaloids including protopine and allocryptopine that act as weak GABA-A receptor agonists at micromolar ...

#12
Giant Hogweed Leaf

Giant Hogweed Leaf

Strong
Leaf/Green

Triggers long-lasting photosensitivity due to high concentrations of furanocoumarins like psoralen and bergapten.

Giant hogweed leaf contains high concentrations of furanocoumarins like psoralen and bergapten that bind to DNA and cause severe phototoxic dermatitis...

#13
Cow Milk Colostrum

Cow Milk Colostrum

Strong
Protein

Enhances immune function with immunoglobulins, which are essential for fighting pathogens and reducing infection risk. - Supports gut health by promoting intestinal integrity, thanks to growth factors that repair gut lining. - Boosts athletic performance with its rich source of proteins and growth factors that aid in muscle recovery. - Promotes healthy aging by providing antioxidants that combat oxidative stress and cellular damage. - Aids in allergy relief by modulating immune responses, reducing allergic reactions. - Improves skin health with growth factors that support cell regeneration and repair. - Supports brain health with bioactive compounds that enhance cognitive function and memory.

Cow milk colostrum is the first milk produced by cows after giving birth, containing high concentrations of immunoglobulins (IgG, IgA, IgM) and growth...

#14
Mongongo Nut

Mongongo Nut

Strong
Nut

Supports cognitive function, including mental clarity and memory, through its beneficial fatty acid composition.

Mongongo nut (Schinziophyton rautanenii) is an African superfood containing 50–60% oil dominated by eleostearic acid (~40%), linoleic acid (~25%), and...

#15
Kaunch Beej (Mucuna pruriens)

Kaunch Beej (Mucuna pruriens)

Strong
Ayurveda

Enhances dopamine levels, improving mood and motivation by 38% in clinical studies. This neurotransmitter boost supports mental clarity and focus. - Supports male fertility by increasing sperm count and motility by up to 70%. This is achieved through its natural L-DOPA content. - Reduces stress and anxiety by modulating cortisol levels. This adaptogenic effect helps maintain emotional balance. - Improves muscle strength and recovery by enhancing protein synthesis. Athletes may experience faster gains and reduced fatigue. - Boosts libido by increasing testosterone levels naturally. This enhances sexual health and vitality. - Aids in managing Parkinson's disease symptoms by replenishing dopamine. This can lead to improved motor function and quality of life. - Supports overall nervous system health by providing neuroprotective effects. This helps in maintaining cognitive function as we age.

Mucuna pruriens contains 3.5-7% L-DOPA, a direct precursor to dopamine that crosses the blood-brain barrier to enhance neurotransmitter production. Th...

#16
Seagrape

Seagrape

Strong
Fruit

Provides neuroprotective benefits by mitigating oxidative damage and enhancing cognitive clarity.

Seagrape (Caulerpa lentillifera) contains phenolic compounds and flavonoids that provide antioxidant activity through DPPH radical scavenging and α-gl...

#17
Peanut

Peanut

Strong
Legume

Peanuts are a powerhouse of protein, aiding in muscle repair and growth by providing essential amino acids. They contain arginine, which enhances blood flow and reduces blood pressure. - Rich in healthy fats, peanuts support heart health by lowering LDL cholesterol levels, reducing the risk of heart disease. - Peanuts are high in antioxidants like resveratrol, which combat oxidative stress and may reduce cancer risk. - They provide a good source of niacin, which supports brain health and may reduce Alzheimer's risk by up to 70% according to studies. - Peanuts contain magnesium, which helps regulate blood sugar levels, reducing the risk of type 2 diabetes. - The fiber content in peanuts promotes digestive health by supporting regular bowel movements and preventing constipation. - Peanuts are a natural source of biotin, which supports skin health and may reduce the risk of dermatitis.

Peanuts contain resveratrol, arginine, and monounsaturated fats that support cardiovascular health by improving nitric oxide production and reducing L...

#18
Soy Tempeh

Soy Tempeh

Strong
Fermented/Probiotic

High in protein, soy tempeh supports muscle health and repair by providing all essential amino acids. It aids in muscle recovery post-exercise. - Contains probiotics, which enhance gut health by balancing the intestinal flora, potentially reducing inflammation. - Rich in isoflavones, it may lower cholesterol levels by up to 10%, supporting heart health. - Provides manganese, crucial for bone health, aiding in the formation of bone regulatory enzymes. - Contains copper, which supports red blood cell production and boosts energy levels. - Offers dietary fiber, promoting satiety and aiding in weight management by slowing digestion. - Contains vitamin B12, essential for nerve function and DNA synthesis, supporting cognitive health.

Soy tempeh is a fermented soybean product containing probiotics and concentrated isoflavones that support digestive health and cardiovascular function...

#19
Capseicin (Capsaicinoid)

Capseicin (Capsaicinoid)

Strong
Compound

• Reduces postherpetic neuralgia pain - 86% of patients maintained benefits over 2 years (strong evidence from RCT, n=143)

Capsaicin is a vanilloid compound from chili peppers that activates TRPV1 receptors to deplete substance P from nerve endings. This mechanism makes it...

#20
Pepino Melon

Pepino Melon

Strong
Fruit

Contributes to cognitive clarity by protecting neural cells from oxidative stress.

Pepino melon (Solanum muricatum) is a nutrient-dense Solanaceae fruit rich in phenolic compounds—including quercetin, chlorogenic acid, and gallic aci...