Hair Structure
_______ , also known as undertone, refers to varying degrees of warmth exposed during a permanent color or lightening process.
Contributing Pigment
______ ______ is the diameter of an individual hair strand
Hair Texture
The Is a measurement system that colorist use to determine the lightness or darkness of artificial and natural hair color
Level System
The 3 primary colors
Blue, red, yellow
Hair coloring products generally fall into these 2 categories:
Oxidative and non-oxidative
Innermost layer; no scientific explanation of its role in hair or hair color
Medulla
- textured hair has loosely grouped melanin granules, so hair color can take longer to process
Coarse
Lightest level
10
Is a medium primary color. Adding this to blue based colors will make them appear lighter.
Red
Can lighten and deposit color simultaneously. Is also used to match, deepen, lighten, or cover gray.
Permanent Haircolor
Outermost layer; protects the interior cortex layer and contributes up to 20% of the overall strength of the hair; when damaged, color fade is problematic; non oxidative hair color deposits hair dye molecules only on this layer
Cuticle
The 2 main types of melanin found in hair:
Eumelanin and Pheomelanin
Average level of natural hair color in the US
6
The 3 secondary colors
Green, orange, violet
Deposit-only haircolor that is not mixed with developer, and lasts through several shampoos, depending on the hair’s porosity.
Semipermanent Haircolor
Middle layer; gives hair strength and elasticity; contains the natural pigment (melanin) that determines hair color; oxidative hair color molecules are deposited here
Cortex
- textured hair contains moderately grouped melanin; has average reaction to hair color
Medium
Darkest level
1
are primary and secondary colors positioned directly opposite each other on the color wheel.
Complementary colors
, also called regrowth, the part of the hair shaft between the scalp and previously colored hair.
New growth
Hair is composed of the following 3 major components:
Cuticle, cortex, medulla
- gives blonde and red colors to hair
Pheomelanin
Is critical when analyzing hair color.
Lighting
A Is an intermediate color achieved by mixing equal amounts of a secondary color and its neighboring primary color on the color wheel.
Tertiary Color
Is a frequently used color category. It is meant to deepen or change the tone of natural hair color. It can: blend gray, refresh faded color on midshafts and ends, and tone pre-lightened hair.
Demipermanent Haircolor