FOR ANY LENGTH:
1. Examining the hair
The hair is made up of dead cells, ordinarily called keratin (see skin's stratum corneum). Hair's keratin has a very delicate structure and because of this feature, the hair is flexible and firm, able to take any kind of shape. If you happen to examine at the microscope the transversal section of a strand, you can easily notice that around the relatively thin and empty core there are clumped together a bunch of small fibres, connected through a thick sticky substance. These bundles are surrounded by the so-called scaly layer, made up of some other layers that protect the hair on the outside. Besides these genereal characteristics, there are also a couple of differences that concern the quality and the composition of the hair. These differences have a major with regard to choosing the appropriate hairstyle. Here is a description of
