Hormones
Testosterone, free
Extended panel — run periodically
What it indicates
The portion of testosterone not bound to carrier proteins.
Why a series helps
It depends on both testosterone and SHBG, so following all three together is more informative than any one of them alone.
What this page does not tell you
What a particular Testosterone, free result means depends on you: your history, your medication, why the test was taken. Ziro does not interpret results for individuals and does not diagnose. If something in your results warrants a conversation, that conversation is with a doctor, and your results are downloadable so you can bring them.
Others in hormones
Chemical messengers that vary across the day, the month and the decades.