In short
No more finger pricking. We have integrated the Tasso device into our test kits: blood collection from the upper arm at the touch of a button, painlessly, in just a few minutes. You get not only a more pleasant collection process, but also more meaningful results from home – without an appointment with your GP or a trip to the lab.
Why this is better for you
Let's be honest: pricking yourself in the fingertip, seeing the blood, and collecting it drop by drop – hardly anyone wants to do that. The fingertip is highly innervated, which can be painful, and sometimes you have to prick multiple times until enough blood has collected. That was exactly the point where men gave up.
“The fingertip is highly innervated, which can be painful. Many simply didn't want to do it." — Dr. Jonathan Apasu, doctor and founder of Adon Health
The fingertip method works – for many it was perfectly fine. But if there is a noticeably better solution, we don't want to withhold it from you.
With Tasso, collection is:
- Painless: One press of a button on the upper arm, gentle negative pressure, done. No pricking the sensitive fingertip.
- Easier: No fiddly drop collection, no second or third attempt.
- More meaningful: The sample quality is higher – this allows us to determine values that were not possible from fingertip blood until now. For reliable diagnostics, in addition to total testosterone, free testosterone and SHBG are often also important.
This means for you: a more complete picture of your hormone levels – completely from home.
Reliable? Yes.
Tasso is certified and has been tested in clinical studies. In a validation study for testosterone determination, the values from self-collection matched venous blood very closely (r = 0.950) [1]. The method is also well-documented for other analyses [2]. We exclusively use validated values – a low testosterone level is too important to determine based on a shaky sample.
Especially if you want to stick with it
A single value is only a snapshot. Anyone who takes their testosterone deficiency seriously or monitors a therapy over time needs regular check-ups. This is exactly where Tasso pays off: you can conveniently perform follow-up collection at home instead of driving to the lab or doctor every time. Medical supervision continues to be provided by our independent cooperating doctors – the collection is just the starting point, not the goal.
And that's just the beginning: men's health is more than hormones. Weight, blood lipids, sexual health, hair loss – the same simple blood collection will also form the basis for these in the future.
Sources
- Validation study on testosterone determination from capillary self-collection vs. venous plasma: strong correlation r = 0.950; total error within desirable performance standards.
- Comparison of capillary blood self-collection using the Tasso-SST device with venous phlebotomy. medRxiv, 2023. https://www.medrxiv.org/content/10.1101/2023.03.13.23286935
Read more on the Adon Health blog
- Testing testosterone: Why the blood test is the gold standard
- Step-by-step guide to the testosterone test
- All posts on the men's health blog
This article is for informational purposes and does not replace individual medical advice. If a testosterone deficiency is suspected, the investigation should be accompanied by a doctor.


