Testosterone test. Total and free, in one blood test.
4.8 out of 5 after the blood test · 99 reviewsNo referral · results usually within 24 hours
What does a testosterone test measure?
One number doesn't tell you whether your testosterone is right. This blood test gives you three answers.
How much do you have?
All your testosterone together. It's the first thing your GP looks at.
How much can you use?
If a lot of it is bound, a normal value can still be too little.
Where does it come from?
BrainsignalTestesIf it's low, you see whether the signal from your brain is weak, or the production itself.
The 8 values in this test
When is your testosterone too low?
There is no fixed line: your GP uses 11, the line on your results sits lower. In between is a grey zone.
8.0 nmol/L
Grey zoneOne lab calls this low, another normal. With symptoms, your GP looks further.
For men aged about 20 to 50, measured in the morning. An example, not a diagnosis.
What does a testosterone test cost?
€129 one-off
8 hormone values. You pay yourself, and it doesn't count towards your deductible.
Test your testosterone- Added to the comprehensive testWith your heart, blood sugar, liver and kidneys: 52 values for €229€109 extra
- Your prostate too (PSA)€15 extra
- Through your GPYour GP decides what is measuredDeductible with symptoms
Why one test costs less than another
Cheaper tests often measure only your total testosterone.
| Total only | At Optimize | |
|---|---|---|
| Total testosterone | ||
| Free testosterone | ||
| SHBG and free androgen index | ||
| LH and FSH | ||
| Prolactin and estradiol |
What your answer looks like
How do you get your testosterone tested?
Order online or in the app
Draw in the morning
Read your results
Where can you get your testosterone tested?
What people often ask
What you want to know before you order.
Yes. You order the test online and schedule an appointment at a draw location yourself, without a referral. Want to discuss your results with your GP? Take them straight from the app.
One blood draw, and you know where you stand.
- How much testosterone you have
- How much of it your body can use
- Where a low value comes from
€129 one-off
Test your testosterone4.8 out of 5 after the blood test · 99 reviews
Sources 7
- 1.NHG guideline on sexual problems (Dutch College of General Practitioners). 2023. richtlijnen.nhg.org
- 2.Bhasin S et al., Testosterone therapy in men with hypogonadism: an Endocrine Society clinical practice guideline. 2018. doi.org
- 3.European Association of Urology, Guidelines on sexual and reproductive health. 2025. uroweb.org
- 4.Unilabs, reference values testosterone. bepalingenklapper.nl
- 5.Star-shl, reference values testosterone. star-shl.nl
- 6.Certe, reference values testosterone. bepalingenwijzer.certe.nl
- 7.Clinical Diagnostics, reference values testosterone. clinicaldiagnostics.nl