Magno Sex Hormones
Free Testosterone on TRT
What the number means, why it moves on a protocol, and what people usually do about it.
What it is
Free testosterone is the small fraction, about two percent, not bound to SHBG or albumin. It is the part that acts on tissue, so it tracks how you feel better than the total does.
The range
TRT-aware target
15 to 25 pg/mL
How to read the lab range
Lab ranges vary by method. Above the lab range is expected on TRT and is not a flag on its own. Low free testosterone with a normal total points at high SHBG.
Why it moves on a protocol
- SHBG up or down changes the free share without the total changing.
- Dose and draw timing, same as total testosterone.
- Assay: calculated free testosterone and direct assays disagree; compare within one lab.
What people usually do · not a recommendation
- Use the same lab and the same draw timing so the trend means something.
- If free is low and SHBG is high, people look at SHBG rather than pushing the dose.
How Magno reads it
Import the PDF or a photo of the report and Magno finds Free Testosterone on it, keeps every test on one line, shows the change since the last one, and reads it against TRT-aware thresholds rather than the lab's generic range. The panel it belongs to, Sex Hormones, gets a written verdict with the probable causes and what people usually do.
Read yours
Drop your lab PDF or a photo and get every marker read like this, in plain words. Free, no account, nothing leaves your browser. Save it in the app to see the change since your last test.
Questions people ask
Why is my free testosterone high when my total is normal?
Low SHBG. Less binding protein means a bigger free share of the same total. It is common with higher body fat and on some protocols.
Should I chase a free testosterone number?
People use it to explain symptoms, not as a target. A high free testosterone with side effects is a reason to lower the dose, not celebrate.
Related markers
Not medical advice
This is how experienced TRT users read the number and what they usually do about it. Every decision about your protocol belongs to you and a clinician who knows you.