Chemical Texture Services defined
The chemical texture service that loosens overly curly hair or changes tightly curly or coiled hair into loose curls or waves
curl re-forming
Most cold waves have a pH between
9.0 and 9.6
The Three Layers of the hair are
Cuticle, Cortex, and Medulla
In permanent waving, the size of the curl is determined by the
size of the rod
Which type of relaxer requires the application of a protective base cream to the entire scalp prior to the application of the relaxer?
base relaxer
In permanent waving, the size of the curl is determined by the
size of the rod
A _________ is a type of perm wrap in which the hair is wrapped at an angle other than perpendicular to the length of the rod.
spiral perm wrap
The ________ is the tough exterior layer of the hair.
Cuticle
The two basic types of wrapping the hair around a perm rod are the spiral and
croquignole perm technique
Which of these are usually classified as a lye-based relaxer?
sodium hydroxide relaxers
Relaxers are ________ and can literally melt or dissolve hair if used incorrectly.
extremely alkaline
Which type of bonds are relatively weak physical side bonds that are the result of an attraction between negative and positive electrical charges?
salt bonds
The middle layer of the hair is the
cortex
The technique of wrapping hair at an angle of 90 degrees or perpendicular to its base section is
The type, size, and shape of the tools and method used to wrap the hair.
The process by which hydroxide relaxers permanently straighten hair is called
lanthionization
Chemical Hair Relaxing?
The process used to rearrange the basic structure of overly curly hair into a straighter hair form.
DOUBLE JEOPARDY A reduction reaction involves the the addition of hydrogen or the removal of
oxygen
The Three side bonds in the hair
Hydrogen, Salt, and Disulfide
The three separate components of acid waves are permanent waving solution, activator, and
neutralizer
Mild-strength relaxers are formulated for __________.
fine, color-treated or damaged hair
Hydroxide ions left in the hair after a relaxer can be neutralized using a(n)
acid-balanced shampoo
Which of these permanent waves process at room temperature?
acid-balanced waves
The natural pH of the hair is
4.5 and 5.5
DOUBLE JEOPARDY An endothermic wave is activated by
an outside heat source
Which of the following is a method of hair straightening that combines the use of a thio relaxer with flat ironing?
japanese thermal straightening