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 / Blood & Iron Markers
Vitamin B12 (Cobalamin)
This test measures the level of vitamin B12 (cobalamin) in the blood. Vitamin B12 is essential for red blood cell formation, neurological function, and DNA synthesis. It plays a key role in energy metabolism and methylation pathways.
Coming Soon
What this lab measures
This test measures the level of vitamin B12 (cobalamin) in the blood. Vitamin B12 is essential for red blood cell formation, neurological function, and DNA synthesis. It plays a key role in energy metabolism and methylation pathways.
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