the coloring matter that provides us with the natural color of our hair and skin
Melanin
Negatively Charged particles that revolve around an atoms nucleus
electrons
Has physical and chemical properties and exists as a solid, liquid or gas
Matter
__________ of dye penetrate into the cortex and/or cuticle, changing hair color
molecules
When Formulating a haircolor that its lighter than the natural hair color always consider the
undertone
Hair color does not reached this layer of the hair
Medulla
A simplest form of matter that can not be broken down into a simpler substance
element
Neutral particle located in the nucleus of an atom
Neutron
This hair color deposits and/or lightens natural pigments in the cortex
permanent
Color on top of color gets
Darker
Provides longer lasting hair color results because of the chemical change that happens
Oxidative
A gradual or slowing down of melanin production in the cortex of the hair
Canities
No chemical mixing or reaction takes place with this type of hair color
non oxidative
Virgin
In addition to neutralizing acids or raising Ph, these might be used because they create less odor than
Alkanolamines
A visible line or band between two different hair colors
Line of demarcation
Matter made up of the same type of particles with definite physical and chemical properties
Pure substances
The chemical reaction that releases oxygen and develops color
Oxidation
Positively charge particles found in an atom's nucleus
proton
Uncolored dye precursors found in permanent hair color
aniline derivatives
The middle layer of the hair with cells that contain melanin and keratin
Cortex
The connect to form compounds in order to create stability
ions
Non non professional hair color that contains metals, builds up on the hair, and should not be used with any professional chemicals
Metallic Dyes
Applying a small amount of hair color formula on the skin to check for an allergic reaction
predisposition test
1-10 is what ?
levels