Prolactin Test

This is a clinic-based blood test measuring prolactin, a pituitary hormone linked to symptoms such as irregular periods, reduced sex drive or unexplained breast milk production. It suits people investigating these symptoms who prefer a clinic appointment.

Sample
Blood
Collection
Venous draw at clinic; also home kit £55
Results in
1 day
Biomarkers
1
Tests for
  • Prolactin

Test specifications

Provider
Better2Know
Sample type
blood
Collection method
venous draw at clinic; also home kit £55
Turnaround time
1 day
Biomarkers tested
1
At-home test
No
Doctor reviewed
No
Gender focus
Both

What's tested

1 biomarker as listed by Better2Know.

Hormones

  • Prolactin

About this test

Prolactin is made by the pituitary gland and is best known for triggering breast milk production, but raised levels can also point to a pituitary growth called a prolactinoma, which is usually benign but can cause symptoms such as irregular periods, low sex drive or headaches. This test measures prolactin from a single blood sample.

As a single-marker test it does what it sets out to do, so the score here is not about depth. The gap is price: at £135, this venous clinic test costs well above the £59.63 median for its comparison group, and more than double Better2Know's own home finger-prick kit for the same marker at £55. Medichecks charges £45 for the equivalent test.

It scores well for clarity and documentation, with a clear explanation of what is tested and why. Collection Convenience is middling since it requires a clinic visit rather than the home option Better2Know itself offers for this marker, and value for money is low given how far above the group median it sits. Results and Follow-up reflects that a doctor does not review results as standard.

Who is it for?

This suits you if you would rather have a clinician draw the blood sample than test at home, for example if you find finger-prick kits difficult. If cost matters more, Better2Know's own Pituitary Cancer Prolactin Home Test Kit covers the same marker for £55, and Medichecks offers it for £45.

If you are experiencing symptoms such as unexplained breast milk production, headaches or visual changes alongside irregular periods, the fact sheet recommends discussing these with a doctor regardless of which version of the test you choose.

How it works

You attend a clinic for a venous blood sample. Results are typically available within one working day of the sample reaching the laboratory, viewable in your secure online patient area, with Better2Know's Patient Services team notifying you once they are ready. Results are not reviewed by a doctor as standard, though Better2Know can arrange a private consultation if your result is abnormal.

Pros & cons

Pros

  • Straightforward single-marker blood test with a same-day-style turnaround.
  • Clear explanation of what prolactin is and why it might be tested.
  • Results reach a secure online patient area with proactive notification.

Cons

  • At £135, it costs more than double Better2Know's own £55 home kit for the same marker.
  • Medichecks tests the same marker for £45, well under a third of the price.
  • Requires a clinic visit rather than the home option available for this marker.
  • Results are not reviewed by a doctor as standard.

Our editorial score

Compare Health Test Score More than double the cost of Better2Know's own home kit
Editorial confidence: 9.5/10

This clinic prolactin test costs £135, more than double Better2Know's own home kit at £55 and well above the £59.63 median across its three-test comparison group. It uses a standard venous blood draw with a result within one working day, but a doctor does not review results as standard. Medichecks offers the same marker for £45.

Score breakdown

  • Clarity and documentation 9.0/10

    The listing publishes a detailed description, the full biomarker list, a stated turnaround, clear collection options, the sample type; it does not state what the report looks like.

  • Clinical depth 7.5/10

    A single-marker test measuring exactly what it sets out to; depth is not the point of this comparison group.

  • Collection convenience 8.0/10

    A finger-prick sample you take at home; with a venous or clinic option as well; results in around 1 days, in line with or faster than similar tests.

  • Results and follow-up 3.0/10

    Results are not doctor-reviewed and no consultation is included; the provider does not describe the report format.

  • Trust signals 6.5/10

    Trustpilot 4.2 from 775 reviews; CQC registered; trading 18+ years.

  • Value for money 2.0/10

    £135.00 against a comparison-group median of £59.63 (+126%).

Calculated 13 September 2026 from the facts we hold about this test and provider, using our published scoring formula. Scores are not hand-edited.

Compare with similar tests

This test belongs to our Prolactin test comparison group. See how it stacks up against equivalent tests from other providers.

View all →

Prolactin Blood Test

Cheapest prolactin test in this comparison group

Checks your level of prolactin, a hormone linked to reproductive health, thyroid function and the pituitary gland. Useful if you have symptoms such as low libido, irregular periods or unexplained fatigue.

  • At-home test
8.2 / 10

Prolactin

Modest premium over peers, widest choice of collection

Prolactin measures a hormone released by the pituitary gland, tested here from an at-home finger-prick, Tasso device or clinic blood draw. It suits people investigating pituitary or hormone balance alongside other tests.

  • At-home test
7.5 / 10

Pituitary Cancer Prolactin Home Test Kit

Below-average priced prolactin test, not the cheapest

Measures prolactin, a pituitary hormone linked to symptoms such as irregular periods, low sex drive and unexplained breast milk production. Suits anyone with these symptoms who wants a quick, single-marker check without a full hormone panel.

  • At-home test
7.3 / 10