Hair Mineral Analysis (HTMA): What It Shows and Why People Get One
One small snip of hair shows the minerals and toxic metals your body has laid down over the past few months. Here is what it measures, why people test, and what the results help you decide.
- A hair tissue mineral analysis (HTMA) measures minerals and toxic metals locked into your hair as it grew, covering roughly the past one to three months.
- It shows things a routine blood test usually does not, including toxic metals like mercury, lead and cadmium, and how your minerals sit against each other as ratios.
- People use it for a baseline, to check everyday exposures such as fish, old paint or work, and to track whether a change has shifted the pattern.
- It is a screening and tracking tool, not a diagnosis. Blood and urine remain the standard samples for confirming a high result.
- MediTests' Hair Mineral Analysis is an at-home kit measuring 16 elements and 11 ratios by ICP-MS at a NATA-accredited laboratory, with no GP referral needed.
What is a hair tissue mineral analysis?
A hair tissue mineral analysis, often shortened to HTMA or HMA, measures the minerals and metals in a small sample of hair.
As each strand forms, it takes up elements from your bloodstream and locks them in. Once grown, that part of the hair does not change, so the strand becomes a running record.
Scalp hair grows roughly 1.25 cm a month (Mayo Clinic Laboratories). A sample cut close to the scalp therefore reflects the last one to three months:
Your hair sample reads like a timeline, not a single snapshot.
What a hair mineral analysis measures
The MediTests Hair Mineral Analysis (Basic) reports three things from the one sample. Each element is analysed by ICP-MS, a laboratory method that detects very small amounts of many elements at once.
| Group | What is measured | What it shows |
|---|---|---|
| 8 essential minerals | Calcium, magnesium, zinc, iron, copper, chromium, manganese, selenium | Which minerals sit low, within range or high over the past few months |
| 8 toxic metals | Aluminium, arsenic, cadmium, lead, mercury, nickel, silver, tin | Whether any have built up, and to what degree |
| 11 mineral ratios | Including zinc to copper and calcium to magnesium | How minerals balance against each other, not just each level alone |
Every result sits beside its reference range. For anything outside range, the laboratory adds a plain-language note on what that element does and the most common sources to look at.
The Hair Mineral Analysis (Advanced) covers a wider range of trace elements and metals, for people who want the fuller picture.
The benefits of a hair mineral analysis
Hair answers a different question to blood. Instead of what is circulating today, it shows what your body has been taking in and holding onto.
- A longer window. One to three months of accumulation, so a single unusual day does not skew the result.
- Toxic metals included as standard. Mercury, lead, arsenic and cadmium are rarely part of a routine blood test.
- The balance, not just the levels. Minerals compete and cooperate, so a ratio like zinc to copper can say more than either number alone.
- Done at home. No needles, no clinic and no appointment. The kit is posted to you anywhere in Australia.
- Easy to repeat. The same simple collection each time makes it practical to track change over months.
Why people get a hair mineral analysis
Most people who test are not chasing a diagnosis. They want information about their own body that they cannot easily get anywhere else. Common reasons include:
- A baseline. Knowing where your minerals and metals sit now gives you something to compare against later.
- Eating a lot of fish. Larger predatory fish such as shark (flake), swordfish and orange roughy tend to carry more mercury (Food Standards Australia New Zealand).
- An older home or a renovation. Many Australian houses built before 1970 used paint high in lead, and sanding or scraping it creates fine dust (Australian Government).
- Work or hobbies around metals. Trades, dust, fumes and old materials can all be sources of exposure over time.
- Wanting a longer view. Some people already have recent blood results and want to see the longer-term pattern alongside them.
What a hair mineral analysis can uncover
Exposure you would not otherwise see. Toxic metals are not checked in routine blood work, so a build-up can go unnoticed. Australian pathology providers use hair to check for past exposure to toxic elements (Sullivan Nicolaides Pathology).
Mercury from your diet. For people who eat a lot of fish, hair mercury is described as a reliable biomarker of methylmercury exposure, because mercury is retained in hair over time (ATSDR).
A pattern behind a single number. The body keeps some minerals in blood within a narrow range, such as calcium. Hair can show a longer-term trend that a one-off blood level may not reflect.
Imbalances between minerals. Two results that each look acceptable can still sit out of proportion to each other. The ratios make that visible.
How your results help you make better-informed decisions
A result is only useful if it changes what you do next. Here is how people typically use their report:
- Narrow down a likely source. A high mercury result points to diet, especially larger fish. A high lead result points to old paint, renovation dust or work. The report lists the common sources for each flagged element.
- Have a more specific conversation. Take your report to your GP, naturopath or nutritionist. Real numbers give you a starting point instead of guesswork, including for any decisions about diet or supplements.
- Decide whether to confirm it. Where a toxic metal is significantly elevated, the report recommends confirmatory testing in an appropriate sample. Blood and urine are the standard samples for this (Pathology Tests Explained).
- See whether a change made a difference. Retest after changing your diet, water or work setup. Comparing two reports from the same test shows whether the pattern has moved.
See what your body has been holding onto
Get the Hair Mineral AnalysisHair mineral analysis vs a blood test
They answer different questions, and many people use both.
| Hair mineral analysis | Blood test | |
|---|---|---|
| What it reflects | What was laid down over 1 to 3 months | What is circulating on the day |
| Toxic metals | Eight included as standard | Only when specifically added |
| Best for | Baselines, longer-term patterns, tracking change | Current levels and confirming a result |
| Collection | Small snip at home, posted back | Walk into a collection centre |
| Diagnosing poisoning | Not used for this | Blood and urine are the standard samples |
For a current snapshot, blood tests such as zinc, magnesium and iron studies are available individually. The Complete Heavy Metal & Mineral Screen checks toxic metals and trace minerals in one blood sample.
What a hair test cannot tell you
Knowing the limits helps you read your result well.
- It is not a diagnosis. Australian laboratories describe hair analysis as not a stand-alone diagnostic test, to be read alongside your history (Sullivan Nicolaides Pathology).
- Hair treatments can affect some results. Dyeing, bleaching, perms and outside contamination can change what is on the hair (Mayo Clinic Laboratories). The kit instructions explain how to handle treated hair.
- Laboratories differ. When the same hair sample was sent to six US laboratories, results varied widely (JAMA, 2001). That is why the method matters, and why you compare results from the same test over time.
How the at-home kit works
- Choose the kit online. No GP referral or appointment needed.
- It arrives in plain packaging within 1 to 3 business days, with instructions and a prepaid return mailer.
- Snip a small sample from the back of your head, close to the scalp. It takes a couple of minutes. Then post it back.
- Get your report. Your sample is analysed by ICP-MS at a NATA-accredited Australian laboratory, and the full report is sent directly to you.
Tests mentioned in this article
Hair Mineral Analysis (Basic)
8 essential minerals, 8 toxic metals and 11 ratios from one hair sample
Hair Mineral Analysis (Advanced)
A wider range of trace elements and metals from the same simple sample
Complete Heavy Metal & Mineral Screen
Toxic metals with zinc, copper and selenium in one blood test
Heavy Metal Analysis
An at-home 24-hour urine kit measuring toxic metal exposure
See every at-home option on our at-home test kits page.
Frequently asked questions
MediTests' Hair Mineral Analysis (Basic) measures eight essential minerals (calcium, magnesium, zinc, iron, copper, chromium, manganese and selenium), eight toxic metals (aluminium, arsenic, cadmium, lead, mercury, nickel, silver and tin) and eleven mineral ratios, such as zinc to copper and calcium to magnesium.
Scalp hair grows roughly 1.25 cm a month, and minerals and metals are locked into the hair as it forms. A sample cut close to the scalp therefore reflects roughly the past one to three months, rather than a single day.
It gives a longer-term view than a single blood draw, checks essential minerals and toxic metals in one test, reports how minerals sit against each other as ratios, and is collected at home with no needles. It is also simple to repeat, so you can track whether a pattern changes.
Our hair samples are analysed by ICP-MS at a NATA-accredited Australian laboratory. Hair results can still be affected by hair treatments and outside contamination, and they vary between laboratories, so read them as a pattern and repeat the same test when you want to compare.
No. Hair analysis is not a stand-alone diagnostic test. Suspected poisoning is investigated with blood and urine testing and a doctor's assessment. Where a toxic metal is significantly elevated, the report recommends confirmatory testing in an appropriate sample.
Each sample reflects about one to three months of growth, so spacing tests at least three months apart means every result covers a new period. Many people retest after a change, such as a new diet or a finished renovation, to see whether the pattern has moved.
Yes. MediTests offers the Hair Mineral Analysis as an at-home kit with no GP referral and no appointment needed. The kit is posted to you in plain packaging, you return a small hair sample in the prepaid mailer, and your report is sent directly to you.
- Mayo Clinic Laboratories. Heavy Metals, Hair (HMHA). mayocliniclabs.com
- Sullivan Nicolaides Pathology. Hair analysis testing. snp.com.au
- Agency for Toxic Substances and Disease Registry. Toxicological Profile for Mercury, Chapter 1: Relevance to Public Health. atsdr.cdc.gov
- Pathology Tests Explained. Mercury. ptex.au
- Food Standards Australia New Zealand. Mercury in fish. foodstandards.gov.au
- Australian Government, Department of Climate Change, Energy, the Environment and Water. Lead in house paint. dcceew.gov.au
- Seidel S, Kreutzer R, Smith D, McNeel S, Gilliss D. Assessment of commercial laboratories performing hair mineral analysis. JAMA. 2001;285(1):67-72. doi.org
Reviewed by the MediTests Medical Team. This article is general information, not personalised medical advice. Always discuss your results with a doctor.
Get a longer view of your minerals and metals
Eight essential minerals, eight toxic metals and eleven ratios from one small hair sample, collected at home with no GP referral needed.
Get the Hair Mineral Analysis