What are the benefits of hair analysis?

Compared to other biological matrices such as blood or urine, hair analysis has many benefits: 

  • The collection is simple and non-invasive, just take a strand of hair with a pair of scissors; 
  • The hair sample is transported by mail at room temperature
  • It is possible to assess exposure over a period equivalent to 6 months
  • It is possible to carry out a segmental analysis centimetre by centimetre to obtain a month by month histogram of the evolution of the level of exposure to pollution; 
  • The substances incorporated in the hair are protected by the external structure of the hair. As hair is "dead" tissue, there is no biological activity. Therefore, the substances incorporated in the hair are very stable over time and it is possible to analyse a strand of hair long after it has been removed.