Chapter 21

1. allowing only a coating action that may be removed by shampooing.
2. Process of treating gray or very resistant hair to allow for better penetration of color
4. A nonammonia color that adds shine and tone to the hair
6. Coloring some of the hair strands lighter than the natural color
10. Also known as bleaching or decolorizing
11. Also known as oxidizing agents or catalysts;
13. Also known as hue; the balance of color.
15. Also known as gradual haircolors; haircolors containing metal salts
18. No-lift deposit-only nonoxidation haircolor
19. Measures the concentration and strength of hydrogen peroxide

1. Visible line separating colored hair from new growth
3. Also known as a predisposition test
5. technique Highlighting technique that involves coloring selected strands of hair by slicing or weaving
7. Used to equalize porosity
8. System for understanding color relationships.
9. The strength of a color.
12. Nonpermanent color whose large pigment molecules prevent penetration of the cuticle
14. Also known as two-step coloring
16. Hair type that is difficult for moisture or chemicals to penetrate
17. System that colorists use to determine the lightness or darkness of a hair color