Chemical Services Ch. 17

Front

The chemical texture service that loosens overly curly hair or changes tightly curly or coiled hair into loose curls or waves is

Back

curl re-forming

Front

The layer of the hair that provides the strength and elasticity of human hair is the _____________.

Back

cortex

Front

The natural pH of hair is between____________.

Back

4.5 and 5.5

Front

In permanent waving, the size of the curl is determined by the __________.

Back

size of the rod

Front

A reduction reaction involves either the addition of hydrogen or the removal of ______________.

Back

oxygen

Front

The three separate components of acid waves are permanent waving solution, activator, and ____________.

Back

neutralizer

Front

Permanent wave solution should be rinsed from the hair for at least ________.

Back

5 minutes

Front

The process of rearranging the structure of curly hair into a straighter or smoother form is __________.

Back

chemical hair relaxing

Front

Thio relaxers usually have a pH above_____________.

Back

10

Front

Which type of bonds are relatively weak physical side bonds that are the result of an attraction between negative and positive electrical charge?

Back

Hydrogen bonds