Checks the three core thyroid hormones, TSH, FT4 and FT3, from a home finger-prick blood sample. Suits anyone wanting a full first-line thyroid check rather than TSH alone.
3 biomarkers as listed by Better2Know.
TSH, FT4 and FT3 together give a fuller first-line picture of thyroid function than a TSH-only test, since they show both the pituitary signal (TSH) and the actual hormone levels the thyroid is producing (FT4 and FT3). That combination is useful if you have symptoms such as fatigue or weight change and want more than a single number back.
Within its comparison group of thyroid tests, this kit is tied for the most markers measured, matching Medichecks and Selph's three-marker tests and Monitor My Health's three-marker test. It is priced well above all of them: Monitor My Health charges £32 and Medichecks £45 for the same three markers, and even Better2Know's own two-marker Thyroid Profile 1 kit costs £69, less than a third of this test's price.
The scoring reflects that gap. It does well for clinical depth because it covers all three core markers, and for collection convenience because it is a home finger-prick kit with a quick turnaround, or a clinic option for £250. It scores poorly for value for money given the far cheaper alternatives, and loses marks for results and follow-up because results are not reviewed by a doctor as standard.
This suits someone who specifically wants Better2Know's clinic network or patient portal and does not mind paying more for it, or someone adding a thyroid check to another Better2Know order for convenience.
If price is a priority, Monitor My Health's Thyroid Test covers the same three markers for £32, and Medichecks' Thyroid Function Blood Test does the same for £45, both a fraction of this test's cost for the same clinical depth.
You take a finger-prick blood sample at home and post it to the lab, with results back within a day of it arriving. A clinic appointment is also available for £250 if you prefer a venous blood draw taken for you. The fact sheet does not show a doctor reviewing results as standard.
This kit tests TSH, FT4 and FT3, the same three markers as several rivals costing far less. At £199 it is the most expensive three-marker thyroid test we compare it with, though it does include every marker a first-line thyroid check typically covers. There is no doctor review of results as standard.
The listing publishes the full biomarker list, a stated turnaround, clear collection options, the sample type; it does not state a proper description, what the report looks like.
3 biomarkers against a median of 2 across the 9 tests in its comparison group.
A finger-prick sample you take at home; with a venous or clinic option as well; results in around 1 days, well ahead of the thyroid norm of 2.
Results are not doctor-reviewed and no consultation is included; the provider does not describe the report format.
Trustpilot 4.2 from 775 reviews; CQC registered; trading 18+ years.
£199.00 against a comparison-group median of £54.90 (+262%).
Calculated 13 September 2026 from the facts we hold about this test and provider, using our published scoring formula. Scores are not hand-edited.
This test belongs to our Thyroid function (TSH, FT4, FT3) comparison group. See how it stacks up against equivalent tests from other providers.
Cheapest full 3-hormone thyroid panel
A three-hormone blood test measuring TSH, FT4 and FT3, the standard panel used to check for an underactive or overactive thyroid.
Three-hormone thyroid panel priced like a two-hormone test
Checks TSH, free thyroxine and free T3, the three core hormones used to assess thyroid function. Suited to people investigating symptoms like fatigue or weight change, or monitoring a known thyroid condition.
Full TSH, FT4 and FT3 panel at the group median price
Checks the three core thyroid markers, TSH, free T4 and free T3, used to help assess an underactive or overactive thyroid. Suited to anyone with possible thyroid symptoms who wants more than a single TSH reading.
Same two markers as rivals, but not the cheapest
A basic thyroid check covering TSH and FT4, the two hormones most commonly used as a first screen for an underactive or overactive thyroid. It suits anyone wanting a quick initial check.
TSH/FT4 test beaten on price only by Monitor My Health
An at-home finger-prick test measuring TSH and FT4, two markers commonly used to check thyroid function. Suited to people with symptoms such as fatigue, weight changes or mood changes.
Matches Medichecks on price but tests one fewer marker
Measures TSH and free T4, the two core thyroid hormones, to help indicate an underactive or overactive thyroid. Suits anyone with symptoms like fatigue, weight change or mood changes who wants an initial thyroid check.
Priciest 2-marker thyroid kit in its group
An at-home finger-prick test checking FT4 and TSH, the two core thyroid hormones, for people who want a thyroid function check without a clinic visit.
Pricier than most 2-marker thyroid tests, no FT3 included
A blood test measuring TSH and FT4, the two hormones commonly used to assess thyroid function. Suited to anyone monitoring a known thyroid issue or investigating symptoms such as fatigue with a GP.
Cheapest full 3-hormone thyroid panel
A three-hormone blood test measuring TSH, FT4 and FT3, the standard panel used to check for an underactive or overactive thyroid.
Three-hormone thyroid panel priced like a two-hormone test
Checks TSH, free thyroxine and free T3, the three core hormones used to assess thyroid function. Suited to people investigating symptoms like fatigue or weight change, or monitoring a known thyroid condition.
Full TSH, FT4 and FT3 panel at the group median price
Checks the three core thyroid markers, TSH, free T4 and free T3, used to help assess an underactive or overactive thyroid. Suited to anyone with possible thyroid symptoms who wants more than a single TSH reading.
Same two markers as rivals, but not the cheapest
A basic thyroid check covering TSH and FT4, the two hormones most commonly used as a first screen for an underactive or overactive thyroid. It suits anyone wanting a quick initial check.
