Haircolor

4. The weak physical cross-bonds inside the cortex that are temporarily broken down by water or thermal heat.
7. A blonding service where the hair fabric is prelightened first and then toned second.
9. Accidentally pulling permanent oxidative color over previously tinted strands causing a dark band and severe breakage.
13. The fibrous middle layer of the hair fabric where permanent color and chemical changes take place.
14. The outermost overlapping scale layer of the hair strand that temporary color only coats.
17. Primary and secondary colors positioned directly opposite each other on the color wheel that neutralize.
19. The absolute strength vividness or saturation of a specific haircolor tone.
20. The alkalizing agent added to permanent haircolor tubes to raise the pH and swell the cuticle scales.
21. An over-lifted band at the base of the hair caused by body heat accelerating a virgin color application.
22. The specific type of natural melanin pigment that provides black and brown tones to the hair fabric.

1. A mandatory allergy patch test that must be administered twenty-four to forty-eight hours prior to a chemical color service.
2. The official clinical term used on the exam to describe new hair growth at the roots.
3. Uncolored microscopic dye precursors found in permanent haircolor that enter the cortex and expand.
5. An oxidizing agent known chemically as hydrogen peroxide that activates the artificial dye precursors.
6. The strict numerical scale running from 1 to 10 that measures the lightness or darkness of a shade.
8. The specific type of natural melanin pigment that provides red and yellow tones to lighter hair fabrics.
10. The single cool primary color that is the strongest and deepest of all three base options.
11. The official state board term for a chemical lightening agent or bleach used to lift natural melanin.
12. An oxidative deposit-only haircolor category that requires a low-volume developer but cannot lift.
15. The specific term for natural hair that contains a combination of both black-brown and red-yellow melanin.
16. The only category of haircolor that simultaneously lifts natural pigment and deposits color in one step.
18. The term describing the balance of color which can be classified as warm cool or neutral.