% Free Testosterone
% Free Testosterone is a clinical biomarker on the Hormones panel, reported in %. Standard reference range: Male 1.6–2.9 · Female 0.5–1.8 %. Functional (optimal) range used by integrative practitioners: Male 2–2.9 · Female 1–1.8 %.
What is % Free Testosterone?
Percent free testosterone reflects the biologically active unbound fraction relative to total testosterone; it is useful when SHBG is abnormal and total testosterone does not reflect androgen activity.
Reference ranges
| Range type | Value (%) | Source |
|---|---|---|
| Standard (lab) | Male 1.6–2.9 · Female 0.5–1.8 | Typical Quest / LabCorp adult reference |
| Functional (optimal) | Male 2–2.9 · Female 1–1.8 | Integrative / functional medicine consensus |
How SomaVue interprets % Free Testosterone
SomaVue maps every result for % Free Testosterone against four clinical lenses — nutrient cofactors, toxin exposure, infection drivers, and circadian/hormonal context — and connects each interpretation to specific peer-reviewed citations. Pre-mapped clinical reasoning and cross-marker pattern detection are available inside the practitioner workspace.
See the full interpretation
Upload a patient PDF from Quest, LabCorp, Access Medical Labs, LifeLabs, Vibrant, Rupa, or any other lab — or enter values manually. See the four-lens analysis, cross-marker patterns, and cited evidence for % Free Testosterone and 223 other markers.
Try it freeEducational reference only. Reference ranges vary by laboratory, assay method, age, sex, and clinical context. Functional ranges represent integrative-medicine consensus and are not regulatory thresholds. SomaVue does not diagnose, treat, mitigate, or prevent disease. Always consult a licensed healthcare provider.