The diameter of the hair shaft which determines the distribution of melanin
What is texture?
100
the layer of the hair shaft that determines the hair's ability to accept moisture
What is the cuticle?
100
the first step of the analysis that deals with the color selection
What is identifying the natural level?
100
the property of hair that depends on the light reflected by it
What is color (hair color)?
200
Determines black and brown colors in hair
What is eumelanin?
200
the hair texture in which melanin granules are more tightly packed
What is fine hair?
200
the condition in which the cuticle is tight and the hair resists the penetration of moisture, including perm solution and permanent color mixtures, and requires longer processing times
What is low porosity?
200
the area used to determine natural level
What is the crown?
200
tool for understanding the relationships of color
What is the color wheel?
300
Determines blonde and red colors in hair
What is pheomelanin?
300
the hair texture in which melanin granules are loosely grouped, causing longer color processing time
What is coarse texture?
300
the degree of porosity on which recommended processing times are based
What is average porosity?
300
hold the crown section up in the air, allowing light to pass through (with the color swatch held behind it)
What is the correct way to hold the hair to determine natural level?
300
Red, yellow and blue, which are considered the fundamental colors
What is a primary color?
400
the combination of eumelanin and pheomelanin in a natural hair color
What is mixed melanin?
400
The characteristic of hair which must be taken into account to ensure complete product coverage
What is density?
400
when the hair is overly porous because the cuticle is lifted due to previous chemical treatments or over-exposure to sun, wind, chlorine, and/or heat appliances
What is high porosity?
400
a head with more pigmented hair than gray hair
What is 30% percent gray hair?
400
colors that are complimentary to primary colors and are made by mixing two primaries
What are secondary colors?
500
the degree of warmth exposed during a tinting or lightening process, aka undertone
What is contributing pigment?
500
The layer of the hair where melanin is found and where artificial coloring takes place
What is the cortex?
500
when the hair has areas of two or three types of porosity, due to regrowth from chemical services, also found in long hair that has varying degrees of exposure to the elements and to heat appliances
What is uneven porosity?
500
a head with more gray hair than pigmented hair
What is 70% to 90% gray hair?
500
also known as hue, this characteristic of color is used to balance a formula