Be part of history's largest studies on supplements

Receive a supply of a study product at no cost to you
Receive a PERSONALIZED HEALTH REPORT with insights when you complete the study

Get invited to our studies!

Select your wellness needs:

In Collaboration with Faculty From

Open Studies

We also welcome you to subscribe to be the first invited to new studies.

Gut Health & Mental Health

Studying prebiotics in history's largest clinical trial on the gut microbiome, stress and feelings of anxiety. Biomarkers include gut microbiome sequencing if you complete all 4 stool samples and clinical vital signs taken from facial blood flow scanning. Some participants will also receive proteomic testing and continuous glucose monitors. Open to U.S. adults ages 21–80, experiencing stress or feelings of anxiety. Residents of NY, NJ, RI, AK, HI are not eligible due to biomarker restrictions.

Volunteer today!

GI Discomfort

Studying greens powder with probiotics, vitamins, minerals and plant extracts for its effects on gas, bloating and irregularity. If you are not currently taking a multivitamin, or willing to pause yours, you may qualify.

Volunteer Today!

Constipation

Studying magnesium and potassium citrate for its effects on constipation. MALES ONLY.

Volunteer Today!

Women's Libido

Studying Ayurvedic formulations of ashwagandha and shatavari root extracts for effects on female satisfaction. Biomarkers include overall health, hormonal, and metabolic testing via finger prick bloodwork.

Volunteer Today!

Energy

Studying NR, the precursor to NAD+, with neurocognitive testing.

Join our waitlist!

Stress Study

Studying Ashwagandha root extract, with salivary cortisol testing.

Join our waitlist!

Where Wellness Leaders Turn for Evidence

How the Study Works

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Eligibility & opt-in

The study is completely virtual - all you need is internet access on your phone or computer!

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Product shipped to your door

If you are eligible, we will mail you a supply of health product that is lab-tested to be pure and contaminant-free.

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Weekly check-ins via survey

Each week, you will answer short surveys about your health and study product.

Final health report & insights

Receive a personalized health report when you complete the study.

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Free tested health product

Tested with diverse, representative populations

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Personalized health insights

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Contribute to scientific breakthroughs

Support equity in wellness research

Making a difference, one study at a time

For each week a volunteer participates in our study, we donate to Vitamin Angels to provide essential supplements to prevent a malnourished child from permanent blindness and help expectant mothers reduce birth defect risks in their babies.

Our Radicle Team

We are passionate doctors and public health trailblazers on a mission to revolutionize healthcare!

See all

Pelin Thorogood, M.Eng, MBA

Co-Founder, Executive Chairwoman

View Bio

Jeff Chen, MD, MBA

Co-founder, Chief Executive Officer

View Bio

Susan Hewlings, PhD, RD

Senior VP of Scientific Affairs

View Bio

As featured in

Our Volunteers’ Impact

Since 2020, Radicle has conducted placebo-controlled trials with nearly 100,000 participants, delivering clinical-grade insights on wellness products.

~100k

Radicle Volunteers

200+

Products Tested

Questions & Answers

Find quick answers to common questions about Radicle’s studies, process, and platform.

“We’re advancing wellness through inclusive, virtual science.”

Dr. Jeff Chen, MD
Co-founder, Chief Executive Officer

Pelin Thorogood, M.Eng, MBA
Co-founder, Executive Chairwoman

Be part of history's largest studies on supplements

Get invited to our studies!

Gut Health & Mental Health

GI Discomfort

Constipation

Women's Libido

Energy

Stress Study

How the Study Works

Eligibility & opt-in

Product shipped to your door

Weekly check-ins via survey

Final health report & insights

Free tested health product

Tested with diverse, representative populations

Personalized health insights

Contribute to scientific breakthroughs

Support equity in wellness research

Making a difference, one study at a time

“We’re advancing wellness through inclusive, virtual science.”

Build What’s Next In Wellness

Join leading wellness companies using Radicle Science to validate products, accelerate innovation, and scale with confidence.