The same: The free testosterone and bioavailable testosterone are the same so I don't understand your question. The 5-hydroxytestosterone is responsible for some of the activity of testosterone especially in the skin and is influenced by both the free testosterone level and the level of the enzyme which converts it. This might be what you are thinking of.
Answered 4/26/2015
2.9k views
4 doctors weighed in across 2 answers
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your question