This blood test measures TSH, free T3, free T4 and reverse T3, giving a focused view of thyroid hormone status. It suits people already diagnosed with a thyroid condition who want ongoing monitoring rather than a first-time check.
4 biomarkers as listed by Blue Horizon Medicals.
TSH, free T3 and free T4 are the core hormones used to assess thyroid function, and this panel adds reverse T3, a less commonly tested marker that some practitioners use alongside the others when investigating conversion of T4 to T3. Together they give a picture of whether the thyroid gland is under- or over-active, which is why the sheet notes this test is aimed at people already diagnosed with a thyroid disorder who need to track treatment rather than get a first diagnosis.
Against the eight comparable advanced thyroid tests we list in this group, this is priced higher than all of them. Peers with the same four markers, such as Monitor My Health's Advanced Thyroid Test, cost as little as £42, and even five- and six-marker panels from Randox Health, Medichecks, London Medical Laboratory, Thriva, Selph and Numan all come in under £90. At £120.25, you are paying well above the comparison group's median of £87.50 for a panel that does not have more markers than most of these peers.
The test scores well for how clearly it is listed, with a full biomarker list, sample type and turnaround stated up front, and for trust signals, reflecting Blue Horizon's Trustpilot rating, its accredited partner labs and 17 years of trading. It loses marks on value for money because of the price gap to its peers, and on collection convenience because it requires a venous draw at a clinic or a home nurse visit rather than an at-home option, with results taking around 20 days.
This suits someone already diagnosed with a thyroid condition who wants to monitor treatment with a doctor-reviewed result, rather than someone looking for an initial screen. If price matters more than provider, Monitor My Health's Advanced Thyroid Test covers the same four markers for £42, and Randox Health's Thyroid Function Quickdraw Test adds a fifth marker for £46, both well below this panel's £120.25.
This is a blood test collected via a venous draw, either at a clinic or with a nurse home visit; there is no at-home finger-prick option for this panel. Once the sample reaches the lab it is processed for TSH, free T3, free T4 and reverse T3, with results reviewed by a doctor and turnaround stated at around 20 days.
This four-marker panel checks TSH, free T3, free T4 and reverse T3 for people monitoring an existing thyroid diagnosis. At £120.25, it costs more than every one of the eight comparable advanced thyroid tests we list, including panels with the same or more markers. The biggest catch is collection: you need a venous draw at a clinic or a nurse home visit, and results take around 20 days.
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.
4 biomarkers against a median of 5.5 across the 14 tests in its comparison group.
A blood sample taken at home by a visiting nurse or phlebotomist; with a venous or clinic option as well; a home nurse visit is offered; results in around 20 days, slower than similar tests.
Results are reviewed by a doctor; the provider does not describe the report format.
Trustpilot 4.2 from 395 reviews; accredited lab (UKAS ISO 15189 partner labs); trading 17+ years.
£120.25 against a comparison-group median of £87.50 (+37%).
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 Advanced thyroid function comparison group. See how it stacks up against equivalent tests from other providers.
Cheaper than other six-marker thyroid panels
This test checks six thyroid markers, including TSH, FT3, FT4 and two thyroid antibodies, giving a fuller picture than a basic TSH check. It suits anyone wanting autoimmune thyroid markers included.
The only panel here testing both major thyroid antibodies
A 6-marker thyroid panel measuring TSH, free T3, free T4, total T4 and two thyroid antibodies (TPO and thyroglobulin), for people investigating possible autoimmune thyroid disease.
Mid-priced 5-hormone thyroid panel with antibodies
Tests TSH, free thyroxine, free T3 and two thyroid antibodies, extending the basic thyroid panel to look for autoimmune involvement. Suited to investigating thyroid symptoms or monitoring a known autoimmune thyroid condition.
Cheapest advanced thyroid test with antibodies
Measures TSH, FT4, FT3 and TPO antibodies from an at-home finger-prick sample, for anyone with possible thyroid symptoms who wants antibody testing alongside the standard hormone panel.
Widest thyroid panel in its group, at the highest price
Checks thyroid hormones and antibodies alongside vitamin D, ferritin and active B12, for people with possible thyroid symptoms or an existing thyroid condition to monitor.
Mid-priced among the six-marker thyroid panels
This blood test measures thyroid hormones (TSH, free T4, free T3), thyroid antibodies and vitamin D. It suits anyone with possible thyroid symptoms who wants antibody testing included, not just hormones.
More markers than its peers, priced higher too
This panel measures TSH, free T3, free T4 and both thyroid antibodies, plus cortisol and magnesium at no extra cost. It suits people wanting a deeper thyroid check, including autoimmune antibodies, alongside monitoring an existing diagnosis.
At-home thyroid panel, £14 less than Randox's clinic test
An at-home blood test measuring TSH, Free T3, Free T4 and two thyroid antibodies, for people who want to check thyroid function without a clinic visit.
Broader thyroid panel priced 10% below the group median
A five-marker thyroid panel checking TSH, free T3, free T4 and two thyroid antibodies, going beyond a basic TSH and T4 check.
Joint-deepest thyroid panel here, but the priciest
Checks six thyroid markers, including TSH, T4, T3 and two thyroid antibodies, from an at-home finger-prick sample. Suited to people wanting a fuller picture than a basic TSH-only check.
1-day thyroid test, faster than Randox's home kit
A clinic-based blood test measuring TSH, Free T3, Free T4 and two thyroid antibodies, with results available within 24 hours.
Six-marker thyroid panel, priced above closest rivals
A 6-marker thyroid panel covering TSH, free T4, free T3, total T4 and two thyroid antibody tests, collected by a nurse. Suits people with thyroid symptoms wanting a fuller antibody check than a basic TSH test.
Same marker count as rivals, at a far higher price
A 5-marker thyroid panel covering TSH, free T4, free T3 and two thyroid antibody tests, using a clinic or nurse-visit blood draw. Suits people with thyroid symptoms wanting antibody testing alongside the core hormones.
Cheaper than other six-marker thyroid panels
This test checks six thyroid markers, including TSH, FT3, FT4 and two thyroid antibodies, giving a fuller picture than a basic TSH check. It suits anyone wanting autoimmune thyroid markers included.
The only panel here testing both major thyroid antibodies
A 6-marker thyroid panel measuring TSH, free T3, free T4, total T4 and two thyroid antibodies (TPO and thyroglobulin), for people investigating possible autoimmune thyroid disease.
Mid-priced 5-hormone thyroid panel with antibodies
Tests TSH, free thyroxine, free T3 and two thyroid antibodies, extending the basic thyroid panel to look for autoimmune involvement. Suited to investigating thyroid symptoms or monitoring a known autoimmune thyroid condition.
Cheapest advanced thyroid test with antibodies
Measures TSH, FT4, FT3 and TPO antibodies from an at-home finger-prick sample, for anyone with possible thyroid symptoms who wants antibody testing alongside the standard hormone panel.
