HD Ch.21 PT - Haircoloring

The cuticle of the hair protects the interior cortex layer and contributes up to ________ percent to the overall strength of the hair.

• 10

• 20

• 60

• 80

The cortex, or middle layer, of the hair gives strength and elasticity and contributes about ________ percent to the overall strength of the hair.

• 10

• 20

• 60

• 80

Hair texture is determined by the ________ of the individual hair strand.

• length

• strength

• diameter

• color

The number of hairs per square inch on the head is most related to the hair's ________.

• density

• texture

• elasticity

• porosity

Permed, colored, chemically relaxed, and straightened hair will have a ________ degree of porosity.

• low

• average

• high

• neutral

The ability of the hair to absorb moisture is known as ________.

• density

• texture

• elasticity

• porosity

The melanin that gives black and brown color to hair is known as ________.

• pheomelanin

• eumelanin

• neomelanin

• euromelanin

The melanin found in red hair is known as ________.

• pheomelanin

• eumelanin

• neomelanin

• euromelanin

The method used to analyze the lightness or darkness of a hair color, whether natural or artificial, is called ________.

• the law of color

• the level system

• the color wheel

• primary color system

The predominant tonality of an existing color is referred to as a ________.

• base color

• even color

• neutral color

• deep color