The layer of the hair that gives the hair the majority of its strength and elasticity is the _________.
cortex
Individual hair strands, hair texture is determined by the _________.
diameter
If the cuticle is lifted, allowing the hair to take color quickly, the hair is said to have ___________.
high porosity
Hair color tones can be described as __________.
warm, cool, or neutral
In tradition color theory, when all three primary colors are present in equal proportions, the resulting color is ________ depending on the saturation or the pigment.
brown or black
The term __________ or hue, refers to the balance of color.
tone
The powdered persulfate salts added to the hair color to increase its lightning ability are called _______.
activators
Which of these is a technique of coloring strands of hair darker than the natural color?
lowlighting
To cover unpigmented hair on salt and pepper head, the color formulation should be _________ that the natural level.
one or two levels lighter
Which of this terms refers to varying degrees of warmth exposed during a permanent color or lightening process?
contributing pigment
Dye precursors that combine with hydrogen peroxide to form larger, permanent dye molecules are called _____.
Aniline Derivative
Hair color containing metal salts that change hair color gradually by progressive buildup and exposure to air, creating a dull, metallic appearance are called ______.
gradual hair color
The darkest hair colors in the level system are identified as being a level _____, while the lightest hair colors in the level systems are _____.
1;10
The system used for understanding color relationships is the _____
law of color
Coloring products that have a coating action on the hair and are removed by shampooing are _____.
temporary
Colors obtained from the leaves or bark of plants are called _____________.
natural hair color
The concentration and strength of hydrogen peroxide is measured in terms of _____.
Volume
What is the process by which oxygen is released within the cortex of the hair shaft?
Oxidation
Which type of melanin lends black and brown colors to hair?
Eumelanin
The melanin that gives blond and red colors to hair is called_________.
pheomelanin
Lighteners that have a thicker consistency and give more control during scalp application are known as _____.
cream lighteners
The coloring technique that involves coloring some strands of hair lighter than the natural color is known as _____.
highlighting
. In the weaving foil technique, selected strands are picked up from a narrow section of hair with a
_____.
zig zag technique
You should NEVER apply hair color to a client if the scalp has any obvious signs of _____.
abrasions
As part of their composition, all permanent haircoloring products and lighteners contain both a developer and a(n) _____.
alkalizing ingredient