Selph Energy & fatigue

Tiredness & Low Energy Blood Test

Checks thyroid function, iron stores, kidney function, inflammation, vitamin B12 and vitamin D, covering several common causes of tiredness in one panel. Suited to anyone with ongoing fatigue who wants to check multiple possible causes at once.

  • At-home test
  • Doctor reviewed
Sample
Blood
Collection
At-home finger-prick or Tasso EasyDraw or venous draw (clinic, nurse visit or own kit)
Results in
1–2 days
Biomarkers
10
Doctor reviewed
Yes
Tests for
  • Free thyroxine (FT4)
  • Free Triiodothyronine (T3)
  • Thyroid Stimulating Hormone
  • High-sensitivity C-reactive Protein
  • Ferritin
  • Creatinine
  • Estimated glomerular filtration rate (eGFR from creatinine)
  • Urea
  • Active Vitamin B12
  • Vitamin D

Test specifications

Provider
Selph
Sample type
blood
Collection method
at-home finger-prick or Tasso EasyDraw or venous draw (clinic, nurse visit or own kit)
Turnaround time
1–2 days
Biomarkers tested
10
At-home test
Yes
Doctor reviewed
Yes
Gender focus
Both

What's tested

10 biomarkers as listed by Selph.

Advanced Thyroid Profile (with antibodies)

  • Free thyroxine (FT4)

Hormones

  • Free Triiodothyronine (T3)
  • Thyroid Stimulating Hormone

Inflammation & cancer risk

  • High-sensitivity C-reactive Protein

Iron status

  • Ferritin

Kidney health

  • Creatinine
  • Urea

Kidney Health

  • Estimated glomerular filtration rate (eGFR from creatinine)

Nutrients

  • Active Vitamin B12

Vitamins

  • Vitamin D

About this test

The Tiredness & Low Energy Blood Test measures ten markers across five areas linked to fatigue: thyroid function (TSH, free T3 and free T4), iron status (ferritin), kidney function (creatinine, eGFR and urea), inflammation (high-sensitivity CRP), vitamin B12 and vitamin D. Each of these is commonly checked when investigating unexplained tiredness, since problems with the thyroid, iron levels, kidney function or vitamin status can all contribute to low energy.

There's no other test in Selph's own range that covers this exact combination, so it sits outside a named comparison group on this site. Against the wider set of nine similarly sized fatigue tests we track, its £99 price matches the median exactly, and its ten markers place it in the 72nd percentile for clinical depth among that group, so it's broader than most tests of a similar size.

That above-average marker count drives a strong clinical depth score, and collection convenience and trust signals both score well thanks to multiple collection routes and a doctor-reviewed report within two days. The value for money score is middling, reflecting a price in line with, rather than below, similarly sized fatigue tests.

Who is it for?

This suits anyone with ongoing, unexplained tiredness who wants to check several common contributing factors, such as thyroid function, iron levels, kidney function and vitamin status, in a single test rather than requesting them separately. It's a reasonable starting point before or alongside seeing a GP about persistent fatigue, though a GP may still want to investigate further if this panel doesn't explain your symptoms.

How it works

You collect a finger-prick blood sample at home using the included kit, or choose Tasso EasyDraw, a clinic visit, a home nurse visit or your own venous draw at extra cost. Once your sample reaches Selph's lab, results are typically ready in one to two days and are reviewed by a Selph doctor before you receive your report.

Pros & cons

Pros

  • Combines thyroid, iron, kidney, inflammation and vitamin markers in one panel
  • Marker count places it in the 72nd percentile among similarly sized fatigue tests
  • Doctor reviews your results before you receive the report
  • Multiple collection routes if a finger-prick isn't suitable

Cons

  • No like-for-like comparison group listed, so value here is harder to benchmark
  • Priced at the typical rate for similarly sized fatigue tests, not below it

Our editorial score

Compare Health Test Score Wide-ranging fatigue panel at the typical group price
Editorial confidence: 10.0/10

At £99, this ten-marker test checks thyroid function, iron stores, kidney function, inflammation, vitamin B12 and vitamin D, several common causes of tiredness in one panel. There's no named comparison group for this exact combination on this site, but its price matches the £99 median for similarly sized fatigue tests we track. Results are reviewed by a doctor within one to two days.

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 8.8/10

    10 biomarkers, placing it in the 72nd percentile of energy fatigue tests we track.

  • Collection convenience 9.0/10

    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 and follow-up 7.0/10

    Results are reviewed by a doctor; the provider does not describe the report format.

  • Trust signals 10.0/10

    Trustpilot 4.9 from 71,592 reviews; accredited lab (UKAS ISO 15189 partner labs (Inuvi, TDL)); CQC registered; doctor review as standard.

  • Value for money 6.5/10

    £99.00 against a median of £99.00 for the 9 similarly sized energy fatigue tests we track (-0%).

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

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