The melanin found in red hair is known as
pheomelanin
The ability of the hair to absorb moisture
porosity
A patch test is generally conducted behind the ear or
inside of the elbow
The four categories of haircoloring products
temporary, semi-permanent, permanent and demi-permanent
What is the most commonly used developer
Hydrogen peroxide
Equal parts of red and yellow mixed together create
Orange
The number of hairs per square inch
density
When applying haircoloring products, always follow
manufacturer's directions
Metallic haircolors are also called
gradual colors
The measure of the potential oxidation of varying strengths of hydrogen peroxide
volume
What system is used to understand the relationship among colors
The law of color
The warmth or coolness of a color is referred to as the
tone
Never apply tint if these are present
abrasions
Natural or vegetable haircolor obtained from the leaves or bark of plants
henna
What color walls are recommended when arranging a haircolor service consultation
white or neutral
Primary and secondary colors that are positioned directly opposite each other on the color wheel
complementary
The strength of a color is referred to as
intensity
The preliminary strand test will tell you how the hair will react to the color formula and indicate the ______ _______
processing time
A non-ammonia color that adds shine and tone to the hair
glaze
The process of treating gray hair to allow for better penetration of color
pre-softening
Colors achieved by mixing equal parts of two primary colors
Secondary colors
Hair texture is determined by the _____ of the individual hair strand.
Diameter
Patch test also known as a/an ______ should be given 24 to 48 hours prior to color application.
Predisposition test
Chemical compounds that lighten hair by dispersing, dissolving and decolorizing the natural pigment
lighteners
what are the 3 types of lighteners
oil, cream and powder