Trichology
How much in length does the average hair grow in one month?
one half inch
Describe the effect of razoring the hair vs cutting with shears.
Razoring creates diffused or tapered ends whereas shears create a blunt, straight line.
What is the "law of color"?
The law of color states that only three colors—yellow, red and blue, called primary colors—are “pure” colors, meaning they cannot be created by mixing together any other colors. The three primary colors create all the other colors.
What is the generic name for Barbicide?
Quats
Desicribe the difference between spiral and croquignole curls.
Spiral: rolled scalp to ends
Croquignole: rolled ends to scalp
The degree of coarsenss or fineness of the hair is referred to as what?
Texture
When you sculpt the hair at 90 degrees or higher, what are you creating?
Layers
Describe the difference between warm and cool colors.
Describe Universal Precautions
Universal Precautions consist of a standard set of guidelines to help avoid contact and contamination when dealing with bodily fluids, in our case, always using gloves to clean a blood spill and treating EVERY client with the same practices, or "universal precautions".
What is the difference between a patch test or pre-disposition test and a strand test?
A patch test is done on the skin to check for sensitivity and a strand test is done on the hair to test the hair's reaction to a particular chemical.
What determines the wave pattern of the hair? (Meaning if the hair is curly, wavy or straight)
The shape of the follicle
Describe the interior of the hair vs the exterior.
The nape and lower sides, below the crest, are the exterior. Above the crest is the interior.
What is the name of the system used to measure the degree of lightness to darkness of hair?
International level system
Disease-causing bacteria or viruses that are carried through the blood or body fluids are known as what?
Blood borne pathogens
What is the technical name for head lice?
Pediculosis capitis
When sebum from oil glands is mixed with perspiration, what is formed?
Acid mantle
What is this describing?
Natural fall
What ingredient in permanent hair color is used to create an alkaline environment and where exactly is it found in the product?
Ammonia, which is found in the tube of color.
Desribe the active and inactive stages of bacteria.
During the active stage, bacteria are rapidly growing and multiplying, typically in dark, damp dirty places where a food source is available. During the inactive stage, bacteria either die or become inactive until conditions become favorable again. Some types of bacteria create spores and can only be destroyed by sterilization.
How much more alkaline is a pH of 9 than a pH of 8?
100 x
Which type of porosity is most resistant to chemical services?
poor or low porosity
Desribe the basic, detail and abstract levels of observation.
BASIC – FORM/SHAPE
DETAIL – TEXTURE
ABSTRACT – STRUCTURE
How far from the scalp is a virgin tint application applied and why?
1/2 inch in order to avoid "hot roots" caused by the heat from the scalp (heat band)
When the immune system is triggered by a disease organism to produce antibodies to a particular disease, what type of immunity is this?
Active immunity
List two reasons why you, a colorist, would opt for lightener over permanent color.
1. client has color treated hair and wants to be lighter
2. client has very dark natural hair and wants to be very light
3. client wants to be more than 3 levels lighter with a cool outcome