permanent
The visible line or band between two different haircolors, natural or artificial:
line of demarcation
Used to diffuse, dissolve or decolorize natural/artificial pigment from the hair:
bleach, decolorizer, lightener
Colors created by mixing a primary color with a neighboring secondary color:
tertiary
Techniques used to create color dimension and the look of texture:
special effects
A test done to check for skin sensitivity or an allergy to a product or chemical; also known as patch test
predisposition test
Available in cream, oil and sometimes powder; can be used on the scalp:
on the scalp lightener
The degree of darkness or lightness of a color:
level
Produces yellow to red pigments in hair:
pheomelanin
Two-step technique of lightening hair then using a toner:
double process
This haircolor creates a chemical change and comes in permanent and demi-permanent types:
oxidative
only covers the cuticle and typically washes out after the first shampoo
temporary haircolor
An oxidizing agent that helps to develop haircolor or lightener:
developer, hydrogen peroxide, catalyst
The system used to determine the darkness or lightness of a color:
level system
A foiling technique that is performed by parting off thin subsections of hair in a straight line:
slicing
Haircolor that deposits color and fades in four to six weeks:
demi-permanent
Type of haircolor used to deposit or lighten the natural pigments in the cortex:
permanent
A system that helps understand color relationships:
law of color
Red and yellow are _________
warm colors
One application of haircolor to either lighten the natural hair color or to deposit haircolor:
single process
Process of diffusing natural hair color or artificial haircolor from the hair:
decolorization
The strength of a color’s appearance:
intensity
A concentrated haircolor that can deepen or brighten another haircolor:
intensifier
middle layer of the hair:
cortex
A deposit-only haircolor that penetrates into the cuticle:
semi-permanent
Lightener is available in what form:
oil, cream, powder