


The Free Testosterone Test is a blood test that analyzes essential biomarkers related to testosterone levels and hormonal balance. This test measures not only total testosterone but especially free testosterone – the part that is actually available for use by the body.
This test is valuable for men and women experiencing symptoms of low testosterone, athletes monitoring their hormonal health, or individuals seeking insight into their hormonal balance. The test shows how much free testosterone is truly available for your body, not just the total amount.
An analysis of these biomarkers reveals your actual testosterone status, measuring both the production and the availability of free testosterone. This information is essential for understanding energy levels, muscle function, libido, and overall hormonal health.
High levels of free testosterone may indicate optimal hormonal function. Extremely high values, however, may point to hormonal imbalance or other conditions that require medical attention.
Low levels of free testosterone may indicate hypogonadism, age-related decline, or other hormonal issues. This can lead to reduced energy, loss of muscle mass, decreased libido, and mood swings.
Answers to what people usually want to know.
After ordering we generate a referral letter and email you the instructions. You pick a collection point yourself and book an appointment there. Blood is drawn at the location, processed at the lab, and your result arrives digitally.
Usually very quickly. Collection points typically have slots within a few days, sometimes even same-day. It depends on how busy the location is. For a few specialist analyses we first ship collection materials, which takes a bit longer.
At most collection points yes. Some accept walk-ins. This is clearly indicated per location. You choose the location that works best for you.
Available testosterone; calculated using total testosterone, SHBG, and albumin.



€45.00EUR
That depends on the test. Whether fasting is required, and from what time, is clearly stated in the instructions you receive after ordering. No surprises at the counter.
It varies per analysis: from same-day to a few working days. Standard values often come back quickly; analyses that go to an external lab can take a bit longer. You get an email with a link to your digital result, including a short explanation per value.
We work with 1,000+ collection points across the Netherlands. After ordering you'll see which locations near you are available and you pick where you'd like to go.
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