Chem Basics
Two or more atoms chemically joined that retain properties
Molecule
Medical term for gray hair
Canities
“Contributing pigment” (warm/cool tone)
Undertone
Uses alkalizing agent to lighten & deposit
Permanent
Allergy test for haircolor
Predisposition test
Rapid oxidation producing light & heat
Combustion
Deepest layer of hair shaft
what color cancels out red
green
Color that coats the outside of the hair shaft (cuticle only) and does NOT penetrate the hair.
Temp Haircolor
Chemical reaction when oxygen is released (develops color)
Oxidation
Pigment that gives hair color
Melanin
what color cancels out yellow
blue or purple
Color that slightly penetrates the cuticle but does not require developer
Semi-Permanent Haircolor
Stable mixture of solids/liquids/gases
Solution
Color that penetrates the hair shaft more deeply than semi-permanent and uses a low-volume developer.
Demi-Permanent Haircolor