
Built by scientists and clinicians from
How it works

Step 1:Tell us your whole story.
Work with our science team to understand your medical and exposure history.

Step 2:Show us your cabinets.
Share the products you use every day, from supplements and medication to cosmetics and cleaning sprays.

Step 3:We map your exposome.
Our analysis screens thousands of potential links between your exposures, disease, and symptoms based on state-of-the-art scientific understanding.

Step 4:Discuss with a scientist.
Consult with an environmental health expert to understand your report and potential next steps.

Step 5:Work with your doctor.
Your expotype report can help your physician consider precision treatment strategies. Share it with them easily.
See what EXPIN members have to say.
I appreciate that EXPIN brings together the different pieces of your life, using questions not normally asked by your doctor, and connects those pieces with scientific evidence to paint a picture of your disease origin and triggers, in a simple and straightforward way.
I've spent the last 20 years wanting to understand my health. I get bloodwork twice a year, I have had rounds of genetic testing to learn what my children and I might be predisposed to. But my genes and my labs were only ever telling me part of the story… Then I found EXPIN, and it felt like finding the missing piece.
EXPIN is able to tell me which exposures I actually need to think through, and which I don't need to worry about at all. There is true relief in that — being told, with evidence, where to focus and where to let go.
Built by scientists, not internet personalities.
EXPIN is for patients who are…
- Frustrated by unproductive doctor's visits
- Tired of doomscrolling Reddit threads and conflicting guidance
- Ready for science-based answers
We are experts who have pioneered environmental health, diagnostics, and biophysics. Current and former roles at Harvard, Stanford, Duke, University of Southern California, National Institute of Health, Mount Sinai, and NYU.

Uta Guo
MD, MBA

Quinto Gesiotto
MD, MS

Leonardo Trasande
MD, MPP

Kuljeet Rai
MD

Richard Goldstein
MD, PhD, MHCM

Krisna Bhargava
PhD

Jonathan Freedman
PhD

Robert (Bob) Molinari
PhD, MBA



