Test ID: BU-746 | Sample Type: Dried Blood Spot + Dried Urine | Technology: ICP-MS | Results Time: 3–5 Working Days After Laboratory Receives Sample | Laboratory: ZRT Laboratory – CLIA Certified | Hormone Specialist Doctor Interpretation: Included | Suitable For: Adults and Children | Collect Sample At Home: No Clinic Visit Required
What Does This Test Measure?
Dried Blood Spot: Zinc, Copper, Magnesium, Selenium, Cadmium, Mercury.
Dried Urine: Iodine, Bromine, Selenium, Lithium, Arsenic, Cadmium, Mercury, Creatinine.
14 toxic and essential elements measured via ICP-MS — the gold standard for trace element analysis.
Related Symptoms
Persistent fatigue, brain fog, poor concentration, low mood, frequent illness, slow wound healing, hair loss, muscle cramps, poor sleep, anxiety, or concerns about heavy metal exposure from fish, seafood, dental amalgam, smoking, or industrial environments.
Who Should Consider This Test?
- Persistent fatigue, brain fog, or poor concentration without a clear cause
- Frequent illness, slow wound healing, or poor immune function
- Hair loss, muscle cramps, or anxiety
- Poor sleep or low mood
- Regular consumption of fish, shellfish, or seafood
- History of dental amalgam (mercury) fillings
- Smoking or exposure to industrial or environmental toxins
- Concerns about heavy metal accumulation
- Those seeking to assess mineral status (zinc, magnesium, copper, selenium) alongside toxic element exposure
- Anyone wanting to understand whether nutrient deficiencies or toxic burden may be contributing to symptoms
Why This Test Is Particularly Important
- Toxic heavy metals such as mercury, arsenic, and cadmium accumulate silently through food, water, and environmental exposure — and are almost never included in standard NHS blood tests
- Zinc and magnesium deficiencies are among the most widespread yet routinely missed mineral imbalances in the UK population — affecting immunity, sleep, mood, and hormonal balance
- Testing both blood and urine provides a more complete picture of toxic burden than either sample type alone — blood reflects recent or active exposure while urine reflects cumulative excretion and organ accumulation
- Copper-to-zinc ratio is a clinically important marker for immune function, inflammation, and hormonal balance that is never assessed in standard GP testing
- ICP-MS is the gold standard for trace element analysis — providing clinical-grade accuracy for all 14 markers across both sample types
Not Sure Which Test Is Right for You?
Email us at info@hormonelab.co.uk with your gender, age, symptoms, medications, and any current treatments. We will forward your enquiry to our doctors and respond within 24 hours.
How It Works
- Order your kit — delivered directly to your door
- Collect samples at home: finger-prick blood spot + urine strip; no clinic visit required
- Post your samples to ZRT Laboratory using the prepaid instructions provided
- Receive your full report by email within 3–5 working days
What You Receive
- All 14 markers in clear graphics and easy-to-read values
- Written interpretation by a Hormone Specialist PhD Doctor
- Recommended next steps based on your results
- Laboratory fee included — no hidden charges
Why We Use ZRT Laboratory
All testing is performed by ZRT Laboratory — a globally recognised, CLIA-certified diagnostic laboratory founded in 1998 by Dr. David Zava, PhD. ZRT has performed over 11 million tests and is trusted by healthcare professionals in 96+ countries.
- Pioneers of at-home dried blood spot (DBS) hormone and element testing
- Advanced ICP-MS technology for clinical-grade trace element accuracy
- Each element tested in the most clinically significant sample type
- Personalised reference ranges based on age and sex
Through our partnership with ZRT Laboratory, Hormone Lab UK delivers internationally recognised, research-backed testing to people across the UK and Europe — from the comfort of home.
Frequently Asked Questions
What is the difference between blood spot and urine testing for heavy metals?
Blood reflects recent or active exposure — useful for mercury and cadmium from ongoing sources like fish or cigarettes. Urine reflects excretion and longer-term accumulation in organs such as the kidneys. By testing both, this panel gives a more complete picture of your current and cumulative toxic burden than either sample type alone.
How do I know if I am deficient in zinc or magnesium?
Symptoms of zinc deficiency include frequent illness, slow wound healing, hair loss, and poor appetite. Magnesium deficiency commonly presents as fatigue, muscle cramps, poor sleep, anxiety, and headaches. Both are widespread but rarely tested in standard NHS panels. This test measures both directly in blood, giving you accurate, actionable data.
Can copper and zinc imbalance affect my health?
Yes. Copper and zinc work in balance — excess copper relative to zinc is associated with anxiety, fatigue, oestrogen dominance, and immune suppression. This test measures both, allowing you and your practitioner to assess the ratio and take targeted action.
Is this test suitable for children?
Yes. The test is suitable for adults and children. Sample collection is non-invasive — a small finger-prick for the blood spot and a straightforward urine collection. Please follow the collection instructions carefully when testing a child.
Does the price include the laboratory fee?
Yes. The full laboratory analysis fee is included in the purchase price. There are no additional charges. You are only responsible for posting your samples to the laboratory.
How long is the kit valid for?
The kit must be used within 12 months of the purchase date.
Can I use this test alongside other Hormone Lab UK tests?
Yes. This panel pairs well with thyroid, hormone, or cortisol tests where mineral and toxic element status may be contributing to symptoms. Your results report will include specialist commentary to help guide next steps.
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