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.
3 biomarkers as listed by Medichecks.
This test measures three hormones central to thyroid function: TSH, free thyroxine (FT4) and free T3. Together they show whether the thyroid is producing too much or too little hormone, which is commonly used to investigate symptoms such as tiredness, weight changes, low mood or irregular periods, or to keep an eye on a diagnosed thyroid condition.
Against the eight other tests in its comparison group, this one includes a third hormone, free T3, that several similarly priced rivals leave out. MyHealthChecked charges the same £45 for a two-hormone version, and YorkTest's two-hormone test costs less at £41. Only Selph offers the same three hormones, and only at £55. Tests such as Better2Know's Full Thyroid Profile go up to £199 without testing any more hormones than this one.
The scores reflect this: it does well for clinical depth and value for money because of the extra marker at a below-median price, and it scores full marks for collection convenience because it can be done at home by finger-prick or upgraded to a nurse visit or clinic draw, with results in 2 days. It also scores well on trust signals, reflecting Medichecks' Trustpilot record and its UKAS ISO 15189 partner labs, and on results and follow-up because every result includes a doctor's comment.
This suits anyone who wants a straightforward first check of thyroid function, whether that is because of symptoms like fatigue or weight change, or as routine monitoring of an existing thyroid diagnosis. The finger-prick option makes it a low-effort choice if you do not want a clinic visit.
If you specifically want thyroid antibodies included to look into autoimmune causes, this panel will not cover that; Medichecks' own Thyroid Function with Antibodies test adds those markers for £65. If budget is the only concern and you are happy with a two-hormone check, YorkTest's version is £4 cheaper, though it tests one fewer hormone than this one.
You can provide a sample by an at-home finger-prick kit, or choose a venous blood draw at a Medichecks clinic or via a home nurse visit. Once the sample reaches the lab it is analysed for TSH, free thyroxine and free T3, and a doctor reviews the results before they are released. Medichecks states a turnaround of around 2 days.
Medichecks' Thyroid Function test covers TSH, free T3 and free thyroxine for £45, matching the price of rivals that test only two of those hormones. Results come back within 2 days and are reviewed by a doctor. The main gap is that it stops short of thyroid antibodies, so it will not look into autoimmune causes.
The listing publishes a short description, the full biomarker list, a stated turnaround, clear collection options, the sample type; it does not state 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; a home nurse visit is offered; results in around 2 days, in line with or faster than similar tests.
Results are reviewed by a doctor; the provider does not describe the report format.
Trustpilot 4.5 from 2,477 reviews; accredited lab (UKAS ISO 15189 partner labs); doctor review as standard; trading 25+ years.
£45.00 against a comparison-group median of £54.90 (-18%).
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.
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.
Same three markers as rivals, priced far above them
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.
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.
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.
