a process used to chemically restructure natural hair into a different wave pattern : most services are performed with the objective of creating waves or curls in straighter hair types
What is permanent waving
100
two layers of hair most affected by chemical texture services
What is cuticle and cortex
100
when the scalp is examined for cuts , abrasions , or open sores
What is scalp and hair analysis
100
a process that involves two principal actions on the hair the physical action of wrapping the hair on perm rods and the chemical changes caused by the waving solution and neutralizer
What is permanent waving
100
require the application of a base cream to the entire scalp prior to relaxer application
What is base relaxers
200
two principle actions on hair
What is physical and chemical changes
200
strong alkalis that can swell the hair up to twice its normal diameter : are not compatible with thio relaxers and can have a ph as high as 13
What is hydroxide relaxers
200
if you see abrasions or sign of scalp disease are present refer your client to a
What is an physician
200
the most common type of rods use are ________ or ______ are made of plastic and vary in diameter and length .
What is concave rods and straight rods
200
contain a base cream that is designed to melt at body temperature and do not require the application of a separate protective base
What is no-base relaxers
300
create chemical changes that permanently alter the natural wave pattern of existing hair growth
What is chemical texture services
300
occurs as the disulfide bonds are converted to lanthionine bonds when the relaxer is rinsed and the hair is still at an high ph level
What is lanthionization
300
this hair type requires a more alkaline solution to raise the cuticle and permit uniform saturation and processing
What is resistant hair
300
used to control the ends of the hair when wrapping and winding the hair
What is end papers or end wraps
300
what are the two most common type of relaxers
What is thio and hydroxide relaxers
400
also known as a soft-curl , jheri curl ,or simple curl : a process used to restructure very curly hair into a larger curl pattern : require a relaxing product to partially straighten the hair , rods , end wraps , waving lotion and a neutralizer .
What is reformation curl
400
have a ph above 10 and are manufactured in a cream form for better adhesion and control
What is thio relaxers
400
the hair is neither resistant nor overly porous
What is normal hair
400
rod sizes may vary from _______ , _______ , _______ , ________ and ________ .
What is extra small , small , medium , large and extra large
400
also known as lye relaxers
What is sodium hydroxide relaxers
500
the process used to rearrange the basic structure of over curly hair into a straighter hair form : process involves the use of a relaxing cream , neutralizer or neutralizing shampoo and conditioning product.
What is chemical hair relaxing
500
in permanent waving _______ ( reducing agent ) softens and swells the cuticle layer of the hair allowing for penetration into the cortex where the solution will break disulfide bonds by a chemical process known as reduction
What is the waving lotion
500
has a raised cuticle layer that easily absorbs solutions
What is porous hair
500
the directional pattern in which the hair is wrapped