Hair Chemistry and Permanent Waving Concepts

Front

Wrapping the hair on rods is ____ in permanent waving.

Back

one of two principal actions

Front

Chemical hair relaxing____.

Back

chemically rearranges the basic structure of overly curly hair into a straighter hair form

Front

Ammonium thioglycolate is the main ____ agent in alkaline perms.

Back

reducing

Front

When the cuticle is lifted and the hair is overly porous and takes color quickly, the hair would be said to have _____?

Back

high porosity

Front

The darkest hair colors in the level system are identified as being a level _____, while the lightest hair colors in the level system are _____

Back

1; 10

Front

_____ tones absorb more light, therefore they look deeper than their actual level

Back

Cool

Front

The tube-like depression or pocket in the skin or scalp that contains the hair root is the _____?

Back

Hair Follicle

Front

Which type of melanin provides natural colors ranging from red and ginger to yellow and blond tones?

Back

Pheomelanin

Front

During which phase does the follicle canal shrink and detach from the dermal papilla?

Back

Catagen

Front

The average growth of healthy scalp hair is _____.

Back

½ inch (1.25 centimeters) per month