Clients who have their hair colored usually visit the salon every ___ weeks.
three to twelve
Overlapping haircolor on previously tinted hair can cause breakage and create a visible line of ___.
demarcation
___ is a professional, industry-coined term referring to artificial haircoloring products and services.
haircolor
What is one of the most valuable tools for identifying the natural level in the hair?
color wheel
The concentration and strength of hydrogen peroxide is measured in terms of ___.
volume
As part of their composition, all permanent haircoloring products and lighteners contain both a developer and a(n) ___.
alkalizing ingredient
The process in which the hair is pre-lightened and then toned is known as ___.
double-process application
What coloring products are regarded as best for covering gray hair?
permanent haircoloring
The primary color that brings depth or darkness to any color is ___.
blue
All haircoloring products require a patch test, with the exception of ___.
temporary colors
A ___ application refers to the first time the hair is colored.
virgin
Examples of single-process permanent coloring applications are virgin color applications and ___.
color retouch applications
During the process of decolorizing, natural hair can go through as many as ___.
10 stages
The ___ of the client's hair and the desired results determine which haircolor to use.
structure
You should NEVER apply hair color to a client if the scalp has any obvious signs of ___.
abrasions
When applying color using the brush-and-bowl method, the mixing bowl should be ___.
nonmetallic
Tones can be described as cool, warm, or ___.
neutral
What type of melanin gives black and brown color to the hair?
eumelanin
The system used by colorists to analyze the lightness or darkness of a hair color is ___.
the level system
Metallic haircolors are also known as ___.
gradual colors
When the cuticle is lifted and the hair is overly porous and takes color quickly, the hair would be said to have ___.
high porosity
What is a non-ammonia color that adds shine and tone to the hair?
glaze
___ is described as a property of objects that depends on the light they reflect and is perceived (by the human eye) as red, yellow, blue, or other shades.
color
The technique using a free-form painting of hair lightener directly onto clean, styled hair is ___.
balayage
Neutral base colors are often used to ___.
cover gray hair
Lighteners that have a thicker consistency and give more control during scalp application are known as ___.
cream lighteners
What is the first step of double-process haircoloring?
pre-lightening
Before performing a coloring service with an aniline derivative product, the client must have a(n) ___.
patch test
When the cuticle is slightly raised and the hair is normal and processes in an average amount of time, the hair would be said to have ___.
average porosity
The standard volume of hydrogen peroxide used to achieve most results with permanent haircolor is ___.
20 volume
Non-oxidative haircolor is classified as temporary and ___ (traditional).
semipermanent
When all three primary colors are present in equal proportions, the resulting color is ___.
black
Colors with a predominance of blue are ___ colors, whereas colors with a predominance of red and/or yellow are ___ colors.
cool; warm
What hair coloring product is used primarily on pre-lightened hair to achieve pale and delicate colors?
toners
Each color is identified by a number and a letter, with the number indicating the level and the letter indicating the ___.
tone
A color obtained by mixing equal parts of two primary colors is a ___.
secondary color
The system used for understanding color relationships is the ___.
law of color
What is the process by which oxygen is released within the cortex of the hair shaft?
oxidation
In the weaving foil technique, selected strands are picked up from a narrow section of hair with a ___.
zigzag motion
Contributing pigment, also known as ___, is the varying degrees of warmth exposed during a permanent color or lightening process.
undertone
When applying color for a single-process retouch application, the color should be applied to the new growth using ___.
1/4-inch partings
Powdered persulfate salts added to haircolor to increase its lightening ability are ___.
activators
To test for porosity, take several strands from four different areas of the head: the front hairline, the temple, the crown, and the ___.
nape
Clients with hair in questionable condition who request chemical services should be required to sign a ___.
release statement
When the cuticle is tight and the hair is resistant, it is difficult for moisture or chemicals to penetrate. What term describes this condition?
low porosity
Oxidative haircolor is classified as demipermanent (deposit only) and ___ (lift and deposit).
permanent
Primary and secondary colors that are positioned opposite each on the color wheel are ___.
complementary colors
Fine hair takes color faster and can look darker because the melanin granules are grouped ___.
more tightly
The ability of the hair to absorb moisture is known as ___.
porosity
The darkest hair colors in the level system are identified as being a level ___, while the lightest hair colors in the level system are ___.
1; 10
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