hair tests Flashcards
1
Q
what does the incompatibility test find?
A
Checks for metallic salts.
2
Q
What does the porosity test check?
A
Checks the condition of the cuticle, dry hair.
3
Q
What does the elasticity hair check for?
A
Checks the strength of the cortex, stretched when wet and should return to normal length
4
Q
What does the test cutting show
A
Checks if the desired colour is achievable
5
Q
what does the skin test check?
A
Checks for allergic reactions
6
Q
What does the pre perm test look for ?
A
checks if the hair is suitable for perming