Vocab
also known as undertone; varying degrees of warmth exposed during a permanent color or lightening process
What is contributing pigment?
specific items used to mix hair color
nonmetallic bowl and brush
what are the primary colors?
What are red, yellow, and blue?
What are the three main layers of the hair shaft?
The Cuticle, Cortex, and the Medulla
What involves coloring some of the hair strands lighter than the natural color?
What is highlighting?
H2O2, oxidizing agent that, when mixed with an oxidative haircolor, supplies the necessary oxygen gas to develop the color molecules
What is hydrogen peroxide?
what is the difference between slicing and weaving?
weaving separates select strands and takes them in and out of the subsection
what are the secondary colors?
Which layer of the hair shaft contains melanin?
The cortex
What is the difference between demipermanent haircolor and permanent haircolor?
What is demipermanent hair color is used for going darker and permanent is used for going lighter
visible line separating colored hair from new growth
What is line of demarcation?
Why do we use 1/8 subsections in lightening and not the usual 1/4 subsections used in hair coloring?
too much hair can cause lightener to bleed out from the foils
which underlying pigment appears when lifting natural level 4 to a level 8?
what are yellow and orange?
What is the role of the cortex?
The cortex provides strength and color to the hair
What are the four forms of lightener?
Oil, Cream, Powder, and Clay
equalize porosity and deposit in one application to provide uniform pigment that supports desired haircolor
What is color filler?
What level should you formulate for the best gray coverage?
Level 7 or deeper
what happens when too much ash is added to porous blonde hair?
What is the role of the hair follicle in hair growth and structure?
What is the overall health of the skin
What role does ammonia play in hair color formulations?
It raises the pH of the hair colorant and opens the cuticle
contain small, uncolored dyes that combine with hydrogen peroxide to form larger, permanent dye molecules within the cortex; dye precursors
What is aniline derivatives?
How do you effectively blend two colors when color melting?
Blend in an upward and downward motion to blur any hard lines
why won't violet toner fix brassy orange hair?
what is because violet only neutralizes yellow, not orange?
How does the structure of the cuticle protect the inner layers of the hair?
The cuticle protects the inner layers of the hair by acting as a shelter for the cortex and the medulla
What is the chemical role of hydrogen peroxide in permanent hair color, and how does its action differ on natural melanin versus artificial dye molecules?
what is hydrogen peroxide oxidizes natural melanin (lightening it) which activating and enlarging artificial dye molecules to deposit color in the cortex?