This venous blood test measures folate (vitamin B9) levels. It suits people investigating possible deficiency symptoms, checking nutritional status in pregnancy, or monitoring folic acid supplementation.
1 biomarker as listed by Better2Know.
The Folate - Serum Test measures the amount of folate, or vitamin B9, circulating in your blood. Folate is commonly used to assess red blood cell production and nutritional status, including during pregnancy or when monitoring folic acid supplementation.
Within its comparison group of folate tests, this venous version is priced well above the median of £59.63, with Medichecks offering the same single marker for £39 and Blue Horizon Medicals for £54.25. Better2Know also sells a home finger-prick kit for the same folate marker at £99, £86 less than this clinic version.
The clinical depth score is solid for a single-marker test because, as the scoring notes, depth is not the point of a targeted vitamin check like this one. clarity and documentation scores highly thanks to a detailed description, stated turnaround and clear collection options. value for money is the weak point, reflecting a price more than three times the comparison-group median, and results and follow-up is marked down because the test is not doctor-reviewed as standard.
This suits you if you specifically want a venous folate check done at a clinic or via a nurse visit, for example if you are investigating symptoms of deficiency such as fatigue or are monitoring supplementation. If price matters, Medichecks offers the same single marker from £39 and Better2Know's own home kit version is £86 cheaper at £99. Speak to a GP about persistent symptoms of deficiency.
A venous blood sample is taken at a clinic or during a nurse visit and sent to the laboratory for folate analysis. Results are typically available within one working day of the sample reaching the lab, viewed through the online patient area; the provider does not state that a doctor reviews them as standard.
Folate, or vitamin B9, is measured here from a venous blood sample taken at a clinic or nurse visit, at a price of £185. That is far above the roughly £59.63 median for folate tests we track, including Medichecks at £39 and Blue Horizon at £54.25, and Better2Know's own home kit version costs £86 less. There is no doctor review of results as standard.
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.
A single-marker test measuring exactly what it sets out to; depth is not the point of this 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 1 days, well ahead of the vitamins norm of 3.5.
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.
£185.00 against a comparison-group median of £59.63 (+210%).
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 Folate test comparison group. See how it stacks up against equivalent tests from other providers.
Cheapest folate test in our comparison
A single blood test measuring serum folate (vitamin B9), a marker linked to red blood cell production and energy. Suited to anyone with symptoms of fatigue, a restricted diet, or pregnancy-related folate needs.
Folate test undercuts its £59.63 group median
A single blood test measuring folate (vitamin B9), a nutrient the body has only a few months' reserve of. It suits people checking for a possible deficiency linked to diet, absorption problems, pregnancy or certain medications.
Costs more than most folate tests, but far less than one
A single blood test measuring folate (Vitamin B9), commonly used to assess levels relevant to red blood cell formation and tissue repair. Useful during pregnancy planning or on a restricted diet.
Cheapest folate test in our comparison
A single blood test measuring serum folate (vitamin B9), a marker linked to red blood cell production and energy. Suited to anyone with symptoms of fatigue, a restricted diet, or pregnancy-related folate needs.
Folate test undercuts its £59.63 group median
A single blood test measuring folate (vitamin B9), a nutrient the body has only a few months' reserve of. It suits people checking for a possible deficiency linked to diet, absorption problems, pregnancy or certain medications.
Costs more than most folate tests, but far less than one
A single blood test measuring folate (Vitamin B9), commonly used to assess levels relevant to red blood cell formation and tissue repair. Useful during pregnancy planning or on a restricted diet.
