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
Estradiol, Ultrasensitive, LC/MS
This test measures estradiol (E2), the most potent form of estrogen, using a sensitive liquid chromatography-mass spectrometry (LC/MS) method. It provides highly accurate results even at very low levels, making it ideal for evaluating...
Coming Soon
What this lab measures
This test measures estradiol (E2), the most potent form of estrogen, using a sensitive liquid chromatography-mass spectrometry (LC/MS) method. It provides highly accurate results even at very low levels, making it ideal for evaluating...
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