Hair Science
What is the diameter of an individual hair strand called?
Texture
What are the primary colours?
Red, Blue, Yellow
At what degree is hair cut in a solid form?
0 degrees or natural fall
During a volume blow-dry, approximately what angle should the brush be elevated?
125 degrees
Which bonds are broken during a Perm service?
Disulfide bonds
Which phase of the hair growth cycle is the active growing phase?
Anagen
What product must be used to lighten artificially coloured hair?
Lightener (Bleach)
What elevation is used to create a graduated haircut?
45 degrees
Which roller placement creates the greatest amount of volume?
On - base
Which type of perm is recommended for gray resistant hair?
Alkaline Perm
What muscle causes goosebumps?
Arrector Pili Muscle
What type of colour provides the best gray coverage?
Permanent Colour
What elevation creates a uniformly layered haircut?
90 degrees
Which roller placement creates the least amount of volume?
What test is performed to determine if a perm has finished processing?
Test Curl
Which bond is broken by water and reforms as the hair dries?
Hydrogen Bond
When are fillers used
When going 3 or more levels darker
Which cutting technique is used to soften blunt lines?
Point cutting
Which way should curls be formed when creating an upstyle?
In the direction you are going to pin.
Which perm wrap creates a spring effect on long hair
Spiral Wrap
What is hair made up of?
Protein
In the Wella numbering system, what does the number after the slash represent?
Tone
What tool removed bulk without changing the overall length?
Thinning shears
What four hair characteristics should be considered before styling curly hair?
Texture, Porosity, Density and Curl Pattern
Which two factors determine which relaxer should be used on a client?
Hair Texture, Porosity