review #2 Flashcards
1
Q
what is the pH of hair and skin
A
4.5-5.5
2
Q
what does the perm solution do to the hair shaft
A
softens and swells the cuticle to allow the solution to enter the cortex
3
Q
what is the name of the chains of bonds that give your hair its strength
A
polypeptide chains
4
Q
list the 3 types of bonds in the hair
A
-side bonds
-disulfide bonds
-salt bonds
5
Q
why is porosity so important in perming
A
determines the strength of your solution and how much
6
Q
how do you wash hair before a perm
A
clarifying shampoo and no conditioner
7
Q
what does the size of the rod determine
A
size of the curl
8
Q
what bond is the most difficult to break down
A
disulfide bonds
9
Q
what effect does medication have on the hair
A
can make the perm take faster
