Clients who have their hair colored usually visit the salon every ___ weeks.
three to twelve
15
___ is a professional, industry-coined term referring to artificial haircoloring products and services.
haircolor
15
The ___ of the client's hair and the desired results determine which haircolor to use.
structure
15
Fine hair takes color faster and can look darker because the melanin granules are grouped ___.
more tightly
15
The ability of the hair to absorb moisture is known as ___.
porosity
15
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
15
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
15
When the cuticle is lifted and the hair is overly porous and takes color quickly, the hair would be said to have ___.
high porosity
15
To test for porosity, take several strands from four different areas of the head: the front hairline, the temple, the crown, and the ___.
nape
15
What type of melanin gives black and brown color to the hair?
eumelanin
15
Contributing pigment, also known as ___, is the varying degrees of warmth exposed during a permanent color or lightening process.
undertone
15
The system used by colorists to analyze the lightness or darkness of a hair color is ___.
the level system
15
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
15
What is one of the most valuable tools for identifying the natural level in the hair?
color wheel
15
___ 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
15
The system used for understanding color relationships is the ___.