Hair Testosterone Test

About this test: ELISA — gender-aware reference ranges. Wellness reading.

What this test can show: Hair testosterone reflects longer-term androgen levels accumulated in the hair, giving a stable, retrospective view rather than the moment-to-moment swings seen in blood.

Research / educational use only. This report is intended as an educational reading and is not a diagnostic test. Reports use observational past-tense voice and carry a Research Use Only banner. Available for direct-to-public ordering as well as practitioner ordering.

Sample type: Hair — head, proximal 3 cm

How to read a hair-testosterone value

Hair-testosterone values above the commonly reported female population range can arise from a range of sources, many of them not indicative of any specific condition. The most extensively studied context is polycystic ovary syndrome (PCOS) and other hyperandrogenic states, including non-classic congenital adrenal hyperplasia. Exogenous androgen exposure - including compounded testosterone supplementation and anabolic-androgenic steroid use - is also a documented cause of elevated readings. None of these contexts can be reliably inferred from a single hair-testosterone measurement.