sade087

What defines wavy hair? ©Science-y Hair Blog 2013 Let’s start with this warning. Lots of us who must go online to learn how to care for our hair encounter a hair typing system. On the surface, it can help us understand what we have. But let me say now that I hate labels and categorizing. Remember the “blue eyes / brown eyes experiment?” Yeah, you get the picture. More on this later. First, some quick and dirty “bioengineering.” ©Science-y Hair Blog 2013 Hair curls or waves because of the composition of proteins in the cortex of hair fibers and how the strands of proteins are arranged in the hair’s cortex (the mid-portion of the hair strand). There are cells in the cortex of some people’s hair called orthocortical cells, accompanied by paracortical cells, and mesocortical cells. How curly hair will be is determined by the proportion of these cells relative to each other, where they are located in the cortex, and what is the protein composition of the orthocortical cells. ©Science-y Hair...