Join a 12-week randomized, double-blind research study exploring how daily use of a nutritional supplement may influence menstrual comfort, mood balance, gastrointestinal symptoms, and overall quality of life. Your participation will help researchers better understand how nutritional support may affect common menstrual-cycle–related experiences in healthy women.

This 30-day study evaluates how a natural food ingredient made from the co-fermentation of mushroom roots and chlorella microalgae affects digestive comfort and mood. Participants will consume a daily chocolate-flavored powder that can be easily mixed into beverages of 3 oz or less (15 kcal per serving) and will complete brief questionnaires assessing gut symptoms and mood.

Participate in a clinical study designed to evaluate how Curcumin Supplements influence joint comfort. Contribute to advancing research on natural approaches to managing discomfort and enhancing quality of life.

Join a 5-week virtual research study exploring whether a botanical supplement may help reduce symptoms of acute stress and situational anxiety. Your participation will help researchers better understand fast-acting, natural approaches to emotional resilience.

This 5-day study compares how canned, caffeinated yerba mate beverages, with different amounts of sugar and yerba mate, affects mood and well-being. Participants will drink one of three test beverages and report their experiences throughout the day.

Join this 29-day, fully remote study testing whether PepZinGI® reduces heartburn after trigger foods compared with placebo. You’ll take two short treatment phases, complete quick daily check-ins, and connect a wearable to track sleep.

This 30-day, fully remote research study is exploring how a nightly use of a sleep supplement may support nighttime relaxation, sleep quality, and morning vitality Eligible participants will complete short online surveys about relaxation before bed, sleep quality, their experiences, and how they feel the next day. Some participants will take the supplement each night, while others will complete the same surveys without changing their usual routine.

Join a 13-day study comparing a canned yerba mate caffeinated beverage to your usual coffee or energy drink. Track your energy, mood, and focus while helping researchers learn more about caffeine and its effects in daily life.

Join our 12-week virtual study exploring how the Daily Nouri Hormone Balance Probiotic may support women’s hormonal balance, mood, skin, and energy — all from home.

Join our 4-week observational study to explore how daily use of GPDT® PropoLight affects immune health, energy, stress, and overall well-being. Your participation will help researchers better understand how nutritional antioxidants can support immune resilience, recovery, and day-to-day vitality.

Join a fully remote study comparing a marine-derived collagen supplement with glucosamine–chondroitin to see how these supplements may support activity-related knee comfort and mobility in healthy adults.

Join an at-home study evaluating how a topical, natural formula may support cold-sore associated skin discomfort and appearance. Participants must report and apply treatment for 10 days during one cold sore episode at any time during the 26-week study to be compliant.

Join a 90-day at-home study exploring how a nightly botanical supplement may help reduce nighttime trips to the bathroom and daytime urgency in men 50+.

Join a 4-week virtual study evaluating how Thorne Magnesium Glycinate may support sleep quality, recovery, stress, and overall wellness. This study will help researchers understand the potential benefits of daily magnesium supplementation in real-world use.

Join a 10-week virtual study evaluating how NeuroAlly™, a novel mycolicibacterium supplement, may support stress resilience, sleep quality, and inflammatory balance. This study helps researchers explore how natural microbiome-based interventions may improve overall well-being

Help Us Advance Science! Participate in a Clinical Trial on Stress Resilience & Inflammation Are you interested in contributing to research on mental health and the gut-immune-brain axis? Kioga is looking for volunteers to join a paid clinical study ($50 Amazon Gift Card upon completion of all required study tasks) investigating the effects of a naturally occurring species of mycolicibacterium on stress resilience and inflammation.

A one-time survey to understand supplement use behaviors, satisfaction with current options, and interest in AI-driven personalized science-based supplement recommendations.

Join a 6-week virtual study evaluating how Cheers Restore may support sleep quality, physiological recovery, and next-day energy in people who occasionally drink alcohol. This study will help researchers understand how nutritional support can aid in the body’s natural recovery process.

Join our 8-week, compensated market and product research study to explore how daily use of Recovery Gummies Hydration affects hydration, recovery, energy levels, and sleep quality. Your participation will help researchers better understand the role of nutritional gummies in post-activity hydration, recovery and well-being.

Join a 24-week virtual study evaluating how a non-invasive, wearable device affects pelvic pain, mood, and sleep in people with endometriosis. This study will help researchers understand how at-home neuromodulation might support daily well-being and reduce discomfort.

Join our 2-week observational study exploring the effects of a single dose of a botanical supplement taken during moments of acute stress or situational anxiety.

Join an observational study looking at the impact of daily activity, like step count and floors climbed on Restless Leg Syndrome ("RLS") symptoms. Participants who connect their smartwatch and complete required surveys receive a $25 Amazon gift card.

Join a study investigating the effect of a natural salmon oil supplement on sleep quality and respiratory symptoms. Participants who take their supplements in accordance with the study protocol, connect their smartwatch and complete required surveys are eligible to receive up to $100 Amazon gift card.

Participate in a research study exploring new methods of sleep tracking, including Fitbits and new Brain-Sensing Sleep Earbuds. Eligible participants must be new to using technology to track their sleep. Participants who fulfill study requirements such as surveys and wearing both a Fitbit and earbuds to sleep as required are eligible to receive a $150 Amazon gift card (or free Fitbit + $70 gift card).

Join our observational study to explore how prolonged use of dopamine agonists affects gene expression in RLS. By participating, you'll help us uncover insights into treatment-induced changes that could enhance future therapies. Eligible participants receive a $25 Amazon gift card for their time.

This study will compare natural Salmon Oil and generic Omega-3 supplements in an 18 week randomized control trial. Participants will be asked to complete and return three at-home blood spot kits, take their supplement daily, and complete required tasks to be eligible for a $150 Amazon gift card.

Join an observational study to explore how The Good Stuff™ Performance Supplement impacts chronic inflammation symptoms, energy levels, and overall well-being. By participating, you'll contribute to research that could improve the understanding of how supplements support inflammation management.

Join our 8-week observational study to explore how daily use of Recovery Gummies Restore affects muscle recovery, soreness, energy levels, and sleep quality. Your participation will help researchers better understand the role of nutritional gummies in post-activity recovery and well-being.