HORMONE
Including FSH, LH, SHBG, free androgen index
The cycle-relevant hormones, mapped. FSH, LH, SHBG, testosterone, free androgen index — the markers used in PCOS investigation and perimenopause transition.
Results in 5 days · UK labs · ISO 15189
Free delivery. UKAS-accredited UK labs. Posted back the same day from a finger-prick at home.
14-day cooling-off, cancel any time before you open the kit. Cancellation terms
Female hormones move on a cycle. A one-shot test on the wrong day gives the wrong answer. This panel reads the hormones that matter — oestradiol, progesterone, LH, FSH, testosterone, SHBG, prolactin, DHEA-S — and pairs them with the thyroid markers that explain a surprising amount of what gets labelled as a hormone imbalance. The kit ships with timing guidance for where in the cycle to test, and the report reads the values in that context.
Ideal for
The kit arrives in a small box with a finger-prick lancet, two vials, and a prepaid return envelope. The whole sample takes about ten minutes at home, no clinic visit and no needle.
Drop the sealed return envelope in any post box the same day. Your sample lands at the UKAS-accredited UK lab the next working day. Results in your inbox within five days of the lab receiving the sample.
HOW WE READ IT
Every marker is read against optimal ranges from the published research, not just the NHS disease thresholds.
See the science behind the rangesSee exactly what you get. View a sample report
VS THE FIELD
£99 for 5 biomarkers. Function Health charges $499 for the US equivalent. Numan starts at £119. The NHS does not offer this combination.
QUESTIONS
The panel measures FSH, LH, SHBG, testosterone, and free androgen index (FAI, calculated from testosterone and SHBG). These markers cover menstrual health, fertility investigation, PCOS, perimenopause, and general female hormone balance.
For the most informative results, test on day 2 to 5 of your menstrual cycle (day 1 is the first day of your period). This is when baseline hormone levels are most stable and FSH, LH, and oestradiol can be accurately compared to reference ranges. If you are investigating progesterone or ovulation, a separate sample on day 21 is ideal.
The panel provides the blood markers used in the Rotterdam diagnostic criteria for PCOS — specifically testosterone, SHBG, LH, and FSH. An elevated LH-to-FSH ratio combined with raised testosterone or low SHBG is a strong indicator. However, PCOS diagnosis also requires clinical assessment and often an ultrasound, so your GP or gynaecologist makes the final diagnosis using these results as evidence.
Yes. FSH and oestradiol levels are the primary blood markers used to assess menopausal transition. Rising FSH and falling oestradiol indicate that the ovaries are producing less oestrogen. The panel also includes thyroid function, which is important because thyroid disorders and perimenopause share overlapping symptoms (fatigue, weight gain, mood changes).
You can, but hormonal contraception (the pill, patch, implant, or hormonal IUD) suppresses your natural hormone production, so results will reflect medicated levels rather than your baseline. If you want to see your natural hormone levels, you would need to be off hormonal contraception for at least one full cycle before testing.
RELATED READING
THE PROPOSITION
The cycle-relevant hormones, mapped.
WHAT YOU GET
THE NEXT STEP
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