The
When performing a chemical hair relaxing service, it is appropriate t
shampoo the client prior to the application of a hydroxide relaxer
conduct periodic strand tests during the service
chemically relax hair that has been treated with a metallic dye
relax hair that has been highlighted or decolorized with bleach
The natural ph of the hair is between
7.0 and 9.0
4.5 and 5.5
2.0 and 3.0
3.5 and 5.0
4.5-5.5
Compounds consisting of carbon, oxygen, hydrogen, nitrogen, and sulfur are:
side bonds
keratin proteins
peptide bonds
amino acids
amino acids
Salt bonds are broken by:
cooling
heat
changes in pH
water
Changes in PH
In permanent waving, the size of the curl is determined by the:
size of the rod
product selected
hair texture
hair condition
size of the rod
The most common type of perm rod is the:
loop rod
concave rod
straight rod
soft bender rod
concave rod
Which end paper technique uses one end paper folded in half over the hair ends like an envelope?
base wrap
double flat wrap
single flat wrap
bookend wrap
Book end
Base placement is determined by the:
width of the rod being used
angle at which the hair is wrapped
length of the hair
base section used
angle at which the hair is wrapped
For _____ placement, the hair is wrapped at a 45-degree angle beyond perpendicular to its base section, and the rod is positioned on its base.
off-base
on-base
quarter-base
half off-base
on base
In half off-base placement, the hair is wrapped at an angle of:
30 degrees below the center of the base section
45 degrees below the center of the base section
45 degrees past perpendicular to the base section
90 degrees or perpendicular to the base section
90 degrees or perpendicular to the base section
A _____ perm wrap is wrapped perpendicular to the length of the rod, in overlapping concentric layers.
bricklay
spiral
Croquignole
curvature
Croquignole
The strength of the permanent waving solution is determined primarily by the concentration of:
hydrogen peroxide
water
ammonia
Thio
thio
What is the active ingredient in alkaline permanents?
phenylenediamine
hydrogen peroxide
ammonium thioglycolate
sodium hydroxide
Ammonium Thioglycolate
What is the main active ingredient in true acid and acid-balanced waving lotions?
thioglycolic acid
hydrogen peroxide
ATG
GMTG
GMTG
True acid waves have a pH between:
2.5 and 5.5
4.5 and 7.0
7.5 and 9.5
7.0 and 10.0
4.5-7.0
A pH of _____ is neutral for hair.
9
7
4
5
5
What kind of waves are sulfites used in?
low-pH
endothermic
ammonia-free
thio-free
low ph
What two important functions are performed by the neutralization process?
activating waving solution and rebuilding disulfide bonds
deactivating waving solution and rebuilding disulfide bonds
activating waving solution and breaking disulfide bonds
deactivating waving solution and breaking disulfide bond
Deactivating waving solution and breaking disulfide bond
Thio neutralization rebuilds disulfide bonds by:
removing hydrogen
adding hydrogen
adding oxygen
removing oxygen
Removing hydrogen
The basic permanent wrap is also known as a:
bricklay permanent wrap
straight set wrap
curvature permanent wrap
piggyback wrap
Straight set wrap
Which wrapping pattern uses pie-shaped base sections?
bricklay permanent wrap
weave technique
piggyback wrap
curvature permanent wrap
Curvature permanent wrap
The measurement of the thickness or thinness of a liquid that affects how the fluid flows is:
texture
porosity
Viscosity
elasticity
Visosity
The neutralizer used with thio relaxers is usually:
ATG
hydrogen peroxide
ammonia
water
Hydrogen peroxide
Which straightening method combines use of a thio relaxer with flat ironing?
low-pH relaxer
Japanese thermal straightening x
hydroxide relaxer
lye-based relaxer
Japanese thermal straightening
Hydroxide relaxers remove one atom of sulfur from a disulfide bond, converting it into a _____ bond.
lanthionine
neutral
hydrogen
sulfur
Lanthionine