Differentiation should include
- the characteristics of each category of color
- the justifications for choosing temporary, semi-permanent, demi-permanent, or permanent color.
Process/Skill Questions:
- How does one determine which category of color to use for a client?
- When would a temporary hair color be used?
- How long does semi-permanent hair color last?
- How long does demi-permanent hair color last?
- How long does permanent hair color last?