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Home › Blood tests › Markers

Cheapest Free Androgen Index Blood Test UK

Total testosterone divided by SHBG, as a percentage.

Add to my panel

Cheapest test that includes it£55.00Female Hormones Test at YorkTest, all-in with a home kit
Tests compared26from 8 providers, checked 29 October 2026

What it measures

The free androgen index (FAI) is worked out from two results: total testosterone divided by SHBG, multiplied by 100. SHBG is the protein that binds testosterone, so FAI gives a rough guide to how much testosterone is free to act. It is a calculation, not a separate measurement.

Why people test it

Typical range

Ranges vary by lab, method, age and sex, and the result depends on how each lab measures testosterone and SHBG. Your report shows the lab's own range. In men, many labs report calculated free testosterone instead, as FAI is less reliable.

Finger-prick or vein?

A vein sample is usually advised. Testosterone and SHBG are hormone tests, and finger-prick results can be raised by creams or gels on the fingers, especially hormone gels.

Every Free Androgen Index test, cheapest first

Cheapest first, whether the test is of Free Androgen Index alone (marked "single-marker test") or a panel that includes it. Each price is all-in: the test and the cheapest way to have the blood taken that suits this marker (a vein draw), before any discount code.

Free Androgen Index tests and their all-in prices
TestAll-inLink
Female Hormones Test
YorkTest · 5 markers · checked 25 October 2026		£55.00
with a home kit		View at YorkTest (opens in a new tab)
Male Hormones Test
YorkTest · 6 markers · checked 24 October 2026		£55.00
with a home kit		View at YorkTest (opens in a new tab)
Testosterone Profile Blood Test
Andro Prime · 3 markers · checked 27 October 2026		£99.00
with a home kit		View at Andro Prime (opens in a new tab)
Female Hormone and Fertility Blood Test
Goodbody Clinic · 6 markers · checked 26 October 2026		£109.00
with a vein draw		View at Goodbody Clinic (opens in a new tab)
Male Hormone and Fertility Blood Test
Goodbody Clinic · 5 markers · checked 28 October 2026		£109.00
with a vein draw		View at Goodbody Clinic (opens in a new tab)
PCOS Check Blood Test
Medichecks · 4 markers · checked 24 October 2026		£111.00
with a vein draw		View at Medichecks (opens in a new tab)
Male Hormone Blood Test
Medichecks · 8 markers · checked 29 October 2026		£114.00
with a vein draw		View at Medichecks (opens in a new tab)
Hair Loss Check Blood Test
Medichecks · 7 markers · checked 28 October 2026		£120.00
with a vein draw		View at Medichecks (opens in a new tab)
Female Hormone Imbalance Test
Forth · 10 markers · checked 29 October 2026		£134.00
with a vein draw		View at Forth (opens in a new tab)
Female Hormone Check Advanced Blood Test
Medichecks · 11 markers · checked 25 October 2026		£134.00
with a vein draw		View at Medichecks (opens in a new tab)
Sports and Fitness Blood Test
Goodbody Clinic · 9 markers · checked 29 October 2026		£139.00
with a vein draw		View at Goodbody Clinic (opens in a new tab)
Female Hormones Clarity 31
Lola Health · 24 markers · checked 29 October 2026		£155.00
with a vein draw		View at Lola Health (opens in a new tab)
Core Health 45
Lola Health · 33 markers · checked 25 October 2026		£160.00
with a vein draw		View at Lola Health (opens in a new tab)
Menopause Test
Forth · 16 markers · checked 29 October 2026		£174.00
with a vein draw		View at Forth (opens in a new tab)
Hormone & Recovery Blood Test
Andro Prime · 7 markers · checked 29 October 2026		£179.00
with a home kit		View at Andro Prime (opens in a new tab)
Female Fitness Blood Test
Forth · 14 markers · checked 29 October 2026		£180.00
with a vein draw		View at Forth (opens in a new tab)
Vital Check 56
Lola Health · 44 markers · checked 29 October 2026		£190.00
with a vein draw		View at Lola Health (opens in a new tab)
Peak Insights 70
Lola Health · 55 markers · checked 29 October 2026		£235.00
with a vein draw		View at Lola Health (opens in a new tab)
Premium Complete Blood Test
Goodbody Clinic · 45 markers · checked 28 October 2026		£249.00
with a vein draw		View at Goodbody Clinic (opens in a new tab)
Female Ultimate Hormones Check
Vitall · 14 markers · checked 25 October 2026		£254.00
with a vein draw		View at Vitall (opens in a new tab)
Male Ultimate Hormones Check
Vitall · 12 markers · checked 28 October 2026		£254.00
with a vein draw		View at Vitall (opens in a new tab)
Optimal Health Blood Test
Medichecks · 46 markers · checked 29 October 2026		£284.00
with a vein draw		View at Medichecks (opens in a new tab)
The Signature Well Man Blood Test
Goodbody Clinic · 48 markers · checked 23 October 2026		£375.00
with a vein draw		View at Goodbody Clinic (opens in a new tab)
The Signature Well Woman Blood Test
Goodbody Clinic · 49 markers · checked 24 October 2026		£375.00
with a vein draw		View at Goodbody Clinic (opens in a new tab)
Erectile Disfunction / Impotence Profile
Better2Know · 7 markers · checked 23 October 2026		£395.00
with a vein draw		View at Better2Know (opens in a new tab)
Ultimate Health Check
Forth · 39 markers · checked 29 October 2026		£444.00
with a vein draw		View at Forth (opens in a new tab)

Cheapest Free Androgen Index test over time

Providers selling it

Other hormones markers

Prices checked daily — always confirm on the provider's site. Not medical advice.

Price data from Blood Tests - Head to Head (CC BY 4.0).

Also known as: free androgen index, fai, free androgen index (fai), free androgen index fai, fai (calculated).