Hormones
What is Testosterone?
your main androgen hormone
- Unit
- nmol/L
- Sample
- Serum
- Fasting
- No fasting needed
- Turnaround
- 2 days
Testosterone affects energy, libido, muscle mass, and mood. In men it is made mainly in the testes; in women, smaller amounts come from the ovaries and adrenal glands.
The value should be measured in the morning since testosterone varies through the day. Most is bound to SHBG; the free fraction is biologically active.
What does low Testosterone mean?
Low testosterone in men can produce fatigue, reduced libido, depressive symptoms, and loss of muscle mass. In women, low levels are normal.
What does high Testosterone mean?
High testosterone in women can suggest PCOS or an adrenal disorder. In men, high values are uncommon and can reflect testicular tumour or anabolic steroid use.
Panels that measure Testosterone
- Male Hormone Test Base
- Performance Test Plus
- Female Hormone Test Plus
- Male Hormone Test Plus
- Fertility Test Plus
- Performance Test Complete
- Male Hormone Test Complete
- Fertility Test Complete
- Female Hormone Test Complete
- Stress Test Complete
- Health Check Complete
- Health Check Man
Reading
- The menstrual cycle phase by phase: what your hormones do
- PCOS and blood tests: the values that bring clarity
- Measuring testosterone properly: total, free and SHBG
- Men's health after 40: values worth following every year
- Normal testosterone levels by age
- Free testosterone, total testosterone and SHBG: the difference
More markers in the same area
- Estradiolyour main estrogen
- Progesteronethe second half of the female cycle
- FSHyour pituitary's fertility signal
- LHtriggers ovulation
- Free (bioactive) testosteronethe active part of your testosterone
- Testosterone to SHBG ratio (display); Testosterone to SHBG ratio (free androgen index) (clinical)your effective androgen level
Launching in Stockholm in 2026.
Want to know when you can order?
This is general information about the marker, not an assessment of your values and not medical advice. Last updated: August 2026.