Is a hair analysis accurate?
The hair tissue mineral analysis is an analytical test, which is widely used in the diagnosis of pathological conditions. The concentration of microelements can be determined both in body fluids and in tissues.
Currently used methods for determining the microelements concentration are characterized by unusually high sensitivity. These are: atomic absorption spectrometry (ASA), inductive spectrometry using concentrated plasma (ICAP), and neutron activation (NAA). These methods made it possible to detect more than 30 microelements in the hair.
Many pathological conditions of the organism are closely related to changes in the tissue microelements concentrations. It is proved that the best method of determining the amount of microelements in the body is to study their concentration in hair and nails. This is a completely alternative method for the blood and urine tests. Hair and nails are located outside of the surface of the skin. They are excluded from metabolic processes. Nails are less suitable material compared to hair due to the difficulty of complete removal of exogenous contaminants. Hair is a neutral, durable material which is not affected by the biological changes. The keratin outer coat of the hair completely prevents both loss of internal components and penetration of external contaminants. This ensures the consistency of the chemical composition. In contrast to nails, it is very easy to remove external contaminants, so you can get very good repeatability of analytical results.
Hair samples are taken non-invasively. They can be left and sent without changes in the chemical composition. Especially valuable is the analysis of toxic microelements in the hair.
Analysis of the concentration of microelements in the hair is the best method for assessing the mineral state of the body.
The hair tissue consists of a protein which contains a large amount of cysteine protein. This amino acid, due to the presence of the thiol group (SH), has chelation properties towards the elements of the transition groups. Due to this, the concentration of microelements in the hair is about fifty times higher than their concentration in the blood and urine.
Analysis of macro and microelements in the hair gives an accurate description of the metabolic condition of the body. The mineral composition of the body largely depends on external factors. Depending on the type of nutrition, physical activity and degree of environmental pollution, the body responds with the mineralization (mineral deposits), demineralization (loss of mineral components) or transmineralisation (rearrangement of mineral components in the body) processes.