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Free Androgen Index (FAI)

Additional Specialized Tests

What is Free Androgen Index (FAI)?

Ratio of testosterone to SHBG

Why It Matters

Indicates bioavailable testosterone. Useful in women with PCOS or hirsutism. Better reflects androgen status than total testosterone alone.

Reference Range

Men:14.8-94.8, Women:0.8-11.0

Which Providers Test Free Androgen Index (FAI)?

✓ Superpower
Included in standard panel
1 out of 10 providers include this test in their standard panels.

Compare Providers

ProviderIncludes TestAnnual CostTotal Biomarkers
Superpower logoSuperpower$199100+
WHOOP Advanced Labs logoWHOOP Advanced Labs$34965
Labcorp OnDemand logoLabcorp OnDemand$39830+
Life Extension logoLife Extension$48640+
Everlywell logoEverlywell$46883
Mito Health logoMito Health$798100+
InsideTracker logoInsideTracker$68048
Function Health logoFunction Health$499100+
Marek Health logoMarek Health$90070+
Blueprint Advanced logoBlueprint Advanced$1150110

Related Information

Medical Disclaimer

This information is for educational purposes only and is not medical advice. Always consult with a qualified healthcare provider about your specific health needs and before making decisions about blood testing.