Posted on January 14 2015
Hair density implies how closely individual hair strands are placed together on the scalp. Factors like the width, porosity as well as texture of hair can affect its density. Hair density is determined by measuring how many number of hair strands grow in a 1"x1" area on the scalp. However, since counting individual hair strands is not humanly possible, there are usually other ways used to figure out the hair density.
Hair Density Test
The most common way to test hair density is by conducting the scalp visibility test. It is done on dry hair because wet hair cannot give a true account due to its tendency to appear thinner than it actually is. The dry hair is made to hang loose and it is then observed how clearly the scalp can be seen through the mass of hair, by parting them in different directions. High density of hair is when it is nearly impossible or difficult to see the scalp; medium hair density is when somewhat of the scalp can be seen. And of course, when the scalp can be easily seen then the person has low hair density.