Introduction
When a practice is considering adding HTMA testing to its offering, the question “can I trust this measurement?” comes up almost every time — and rightly so. A test result is only as good as the measurement process behind it. This article explains the laboratory side of hair mineral analysis: how the measurement works, what sample preparation involves, and where the limits of measurement lie.
What the measurement actually involves
Hair Tissue Mineral Analysis (HTMA/EHA) consists of determining the concentration of selected minerals, trace elements and potentially toxic elements in a hair sample. The standard technology for this type of analysis is ICP (inductively coupled plasma) — a method that allows simultaneous, quantitative determination of many elements in a single sample with high sensitivity.
An important distinction: the laboratory performs the measurement — that is, the precise determination of concentrations — it does not handle interpretation of the result in a clinical context. Interpretation and any resulting recommendations remain the responsibility of the treating practitioner, who evaluates the result alongside patient history, lifestyle and other test findings.
What affects measurement reliability
From a laboratory standpoint, several factors influence the quality and reproducibility of a result:
- Correct sample collection — collection site (typically the nape of the neck), a hair length corresponding to the desired time window (an analysis typically reflects roughly 8–12 weeks of hair growth), and the absence of external contamination that could skew the result (certain cosmetic products or hair treatments, for example).
- Sample preparation in the laboratory — washing/degreasing the sample according to a standardized protocol, intended to limit the influence of external contaminants while preserving elements incorporated into the hair structure itself.
- Calibration and quality control of measurement equipment — regular spectrometer calibration, and the use of reference materials and control samples in every measurement batch.
- Panel of elements measured — the scope of the test (a full panel covering minerals, trace elements and toxic elements, or a simplified panel focused on potentially toxic elements only) should be clearly defined and communicated before testing.
What the measurement doesn’t tell you on its own
This is one of the most important things to understand on the laboratory side: the raw numerical result (an element’s concentration) is not a diagnosis and not a ready-made recommendation. Interpretation requires clinical knowledge, patient context, and in many cases, comparison with other test results. A reliable laboratory therefore communicates the division of roles clearly: the lab is responsible for measurement quality and reproducibility, the practitioner for interpretation and recommendations.
What to look for when choosing a laboratory partner
From the standpoint of a practice evaluating a provider’s reliability, it’s worth asking about:
- the measurement technology used and how quality is controlled within each measurement batch,
- turnaround time from sample receipt,
- availability of a sample report before committing to a partnership,
- clarity in how the lab communicates the division between measurement and interpretation.
Where to have the test performed
Mineralco focuses on explaining the laboratory and methodological side of elemental analysis — what it is, how it works, and what its measurement limitations are. The test itself, including the full process from sample collection through to the report, can be ordered through LifelineDiag — a European laboratory (Poland) offering hair mineral analysis with reports available in English. Learn more about HTMA/EHA testing at LifelineDiag.