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Clinical Research Directory

Browse clinical research sites, groups, and studies.

4 clinical studies listed.

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Mental Clarity

Tundra lists 4 Mental Clarity clinical trials. Each listing includes eligibility criteria, study locations, and direct links to research sites in the Tundra directory.

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ACTIVE NOT RECRUITING

NCT07892911

A Study to Evaluate the Effects of a Beef Liver Supplement on Energy, Mood, and Mental Clarity

This is a randomized, triple-blind, placebo-controlled clinical trial evaluating the effects of the Ancestral Supplements Grass Fed Beef Liver oral supplement on energy, mood, and mental clarity over 12 weeks. One hundred male and female participants aged 18-50 who report concerns regarding energy levels, mood, and mental clarity will be enrolled and randomized equally into an intervention arm (beef liver supplement) or a placebo arm. Participants will take their assigned product once daily and complete self-reported questionnaires at Baseline, Week 4, Week 8, and Week 12. Blood testing (iron panel) will be conducted at Baseline and Week 12 at a local Quest Diagnostics Clinic. The primary objective is to evaluate the product's effects on energy and mood; the secondary objective is to assess participants' perceptions of the product's effects on energy, mood, and mental clarity, including happiness, anxiety, well-being, brain fog, and concentration.

Gender: All

Ages: 18 Years - 50 Years

Updated: 2026-10-23

1 state

Fatigue
Low Mood
Mental Clarity
+2
COMPLETED

NCT07755475

A Clinical Trial to Evaluate the Effects of a Supplement on Cognitive Function and Energy Levels

This study evaluates the effects of Artah's Cellular Hydration electrolyte supplement on cognitive function and energy levels in healthy adults aged 25-60 who experience mild to moderate fatigue, brain fog, or related symptoms. The trial is a single-arm, unblinded, virtual study in which all 50 participants will use the test product daily for 4 weeks. Participants will complete self-reported questionnaires at Baseline, Week 1, Week 2, Week 3, and Week 4, and will undergo cognitive battery testing at Baseline and Week 4. The primary endpoint is change in cognitive performance scores as measured by a standardized cognitive battery. Secondary endpoints include participants' self-reported perceptions of mental clarity, alertness, mood, physical performance, overall energy levels, and frequency of food cravings.

Gender: All

Ages: 25 Years - 60 Years

Updated: 2026-08-10

1 state

Cognitive Function
Fatigue
Energy Levels
+3
COMPLETED

NCT07742605

A Clinical Trial to Evaluate the Effects of a Supplement on Cognitive Performance

This study evaluates the effects of the Xula Herbs Mind Food supplement on cognitive performance in adults aged 25-70 who report difficulty concentrating, memory challenges, brain fog, and low productivity. The trial is a single-arm, open-label, virtual study conducted over 6 weeks in 35 participants. Participants will use the test product three times daily (sprayed three times under the tongue, at least 30 minutes before a meal, and not after 6 pm) for the duration of the study. Cognitive performance will be assessed via a Cognitive Battery Test at Baseline and Week 6, and self-reported questionnaires will be completed at Baseline, Week 2, Week 4, and Week 6.

Gender: All

Ages: 25 Years - 70 Years

Updated: 2026-08-03

1 state

Cognitive Impairment
Brain Fog
Memory Difficulties
+3
NOT YET RECRUITING

NCT07721506

A Clinical Trial to Evaluate the Effects of the Edge+Ease PM+AM System on Mood, Mental Clarity, Sleep Quality, and Digestive Wellbeing

This is a decentralized, single-arm, open-label clinical trial evaluating the effects of the Edge+Ease PM+AM dietary supplement system on sleep quality, mood, mental clarity, focus, and digestive comfort in 35 generally healthy adults aged 18-65 years over 12 weeks of daily use. Participants will take the Edge+Ease PM product (one serving of powder mixed in approximately 150-250 mL water) in the evening approximately 60-90 minutes before bedtime, and the Edge+Ease AM product (two capsules) in the morning with food. All study activities are conducted remotely via the Citruslabs platform. Participants will complete questionnaires at Baseline, Week 4, Week 8, and Week 12, and will wear a Fitbit continuously beginning 7 days before product use through the end of the 12-week intervention period to provide objective sleep data.

Gender: All

Ages: 18 Years - 65 Years

Updated: 2026-07-23

Sleep Quality
Mood
Mental Clarity
+4