Lab services are not currently available. We're working to bring Feelrx Labs online soon — everything below is a preview of what's coming.
Quest / Hormones
Leptin
Leptin, Serum/Plasma is a hormone produced by fat cells that plays a key role in regulating energy balance, appetite, and metabolism. It signals to the brain how much fat is stored in the body and helps regulate hunger by reducing food intake when...
Coming Soon
What this lab measures
Leptin, Serum/Plasma is a hormone produced by fat cells that plays a key role in regulating energy balance, appetite, and metabolism. It signals to the brain how much fat is stored in the body and helps regulate hunger by reducing food intake when...
How testing works
Order online
Choose your marker and add a brief medical history so your result has context from the first draw.
Visit a partner lab
Take your order to a certified Quest location for a short blood draw.
Clinician review
A licensed clinician reviews your result and shares clear interpretation with next steps.
FAQ
After ordering, visit a certified Quest partner location for a short blood draw. No insurance is required.
Feelrx / Start here
Know your baseline.
Order a panel online, draw at a certified partner lab, and receive a clear clinician review.
Coming Soon