HAirFacts

 The core structure of the human hair shaft can be used for forensic drug testing and anonymous drug test for any presence of illicit drug metabolites. Hence, your single hair can already provide substantial information in an investigation.


A person's genes determine the hair/skin/eye color since before his or her birth. The determinants for hair color are known as melanocytes. These cells form the natural hair colors, or pigments and distinguish between black, brown, and red. Depending on the percentage of each pigment, the person has blonde, brown, red or black hair. As the melanocytes decay during a lifetime, the hair becomes a dull gray and later on it turns into a whitish color.