Hormones & Performance·Best seller
Amenorrhea Profile
View
Hormones & Performance
Testosterone, Bioavailable
This test measures the fraction of testosterone that’s not bound up tightly by SHBG (sex hormone binding globulin). It’s the “usable” testosterone that can actually interact with your tissues—muscle, brain, libido, recovery. For athletes and biohackers, this is often more telling than just “total T.”
- Unit
- ng/dL
- Health impacts
- Mood · Recovery · Metabolic Health · Libido · Brian Fog
In your dashboard
Your trend, against your optimal range.
Example data · how your trend would appear once you test
At every level
What we'd do at any value.
Exploring
343ng/dL
LowOptimal 110–575High
In your optimal zone
Habits that hold this position.
No specific guidance for this zone yet. We're working on it and will update this soon.
Keep exploring