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Hair Glossary - Hair Coloring 101; Hair Color Terms Helping You Become a Home Hair Colorist : #2

Cosmetology Science Terms - ongoing

• activator: oxidizer added to hydrogen peroxide to increase its chemical action
• color fillers : demi permanent colors used as fillers, when there is doubt as to whether the color result will be an even shade             
• color or tint removers : prepared commercial designed to remove artificial pigment from the hair (only one works correctly)
• conditioner filler: preparations used to recondition damaged, overly porous hair 
• contributing pigment : pigment that lies under the natural hair color, when the natural color is lightened: MUST be taken into consideration when hair color is selected; also called undertone.
• demi permanent color : hair color similar in nature to semi-permanent but longer lasting: formulated to deposit ONLY;does not lift ( lighten) color : also called deposit-only haircolor.
• double process hair coloring : color technique requiring two separate procedures in which the hair is pre-lightened before the depositing color is applied
• foundation : the color left in the hair after it has gone through the 10 steps of decolorizing.
• hair color : the color of hair created by nature
• haircolor: a professional, industry-coined term referring to artificial haircolor products and services
• hair lightening :  chemical process involving the diffusion of the natural color pigment or artificial color from the hair; often called 'bleaching' or 'decolorizing'
• law of color: system for understanding color relationships
• level system : system colorists use to analyze the lightness or darkness of a hair color
• line of demarcation : visible line separating colored hair from new growth
• off-the-scalp lightener : lighteners that cannot be used directly on the scalp
• on-the-scalp lightener: lighteners that CAN be used directly on the scalp
• prelightening : the first step of double-process hair coloring, used to lift or lighten the natural pigment, preliminary to the application of the toner
• resistant : characteristic of some hair types that makes penetration by moisture or chemicals difficult
• semi permanent hair coloring : haircolor formulated to last through several shampoos; partially penetrates the hair shaft and stains the cuticle layer, slowly fading with each shampoo
• toners : semipermanent, demi permanent and permanent  haircolor products that are used primarily on prelightened hair

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