Chapter 21, Problem 68P

Interpretation Introduction

Interpretation:

The difference between a temporary, semi-permanent and a permanent hair dye in terms of how they work should be described.

Concept Introduction:

Hair colors are products that people use to lighten or darken the shade or color of one’s hair. Depending on our needs, there are numerous coloring techniques that enable us to modify our hair color. These techniques have different mechanisms and different modes of application.