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86 terms

Basic of hair chemicals

STUDY
PLAY
Sodium hydroxide relaxers are also known as:
lye relaxers
What does the porosity of the hair affect when working with a chemical relaxer?
processing time
What would be the strength used on curly-to-medium textured hair with an ammonium thioglycolate relaxer?
regular
What should be applied to the hair to replace natural moisture and oils lost during a chemical process?
conditioning treatment
Which of the following is NOT a criterion to consider when creating a new curl pattern using a chemical relaxer?
determine the client's natural hair color
What is the shape of a tightly curled hair follicle?
ellipital
The abiilty of the hair to absorb liquids or chemicals, and is one of the determining factors in selecting the appropriate chemical relaxer strength and processing time is known as?
porosity
What is the optimum percent of natural curl pattern to remove when relaxing?
85%
How far from the scalp should a virgin relaxer be applied?
1/4'' to 1/2''
A technique used to loosen or relax overly curly hair patterns by approximately 50% of their natural shape is called:
curl diffusion
What does rebonding refer to in a reformation curl service?
neutralizing
Boosters are used during a curl reformation process to begin forming the new curl pattern. What is the main ingredient found in a booster?
a mild form of ammonium thioglycolate
Which of the following conditions determines the processing time and proper relaxer strength to use?
the hair's texture, elasticity and porosity
What products should be applied to protect previously treated hair from the chemcial product when performing a relaxer retouch service?
protective cream
Curl diffusion, also caleed chemical-blowout, is a technique used:
to reduce the curl in overly curly hair
The function of a curl activator is to provide moisture and:
helps retain shape of the new curl configuration
The physical phase of a chemical relaxing treatment includes smoothing the hair, rinsing the product from the hair and applying:
neutralizer or neutralizing shampoo
Before styling the hair following a relaxer process, you should:
condition the hair
When does the chemical action of a relaxer begin?
as soon as the relaxer is applied to the hair
What will be restored during the neutralization process?
broken disulfide bonds
One of the causes for breakage in the nape after a relaxer service is:
improper rinsing
Rearrangers are used during a curl reformation process to reduce the natural curl. What is the main ingredient found in rearrangers?
ammonium thioglycolate
Sodium hydroxide relaxers have a pH of:
10.5-14
Ammonium thioglycolate relaxers are referred to as:
thio relaxers
Which relaxer strength would be used on healthy, color-treated, fine-textured or porous hair?
a. mild
What is another name for neutralizing shampoo?
Stabilizer
What is NOT a step involved in curl reforming?
restraightening
The most common ingredient found in products that completely straighten the hair is:
sodium hydroxide
What product should NOT be applied to hair that has been previously permed with ammonium thioglycolate?
sodium hydroxide relaxer
A pull test is performed to check for which of the follwoing conditions
elasticity
What is the name for a chemical service designed to change overly curly hair to curly or wavy hair?
curl reforming(soft curls)
Virgin thio relaxers may not applied after ....
a vigorous shampoo
During a curl reforming service, what size parting should be used?
thinner than normal
When performing a virgin relaxer, it is necessary to apply the product to the base last since the body heat near the scalp will cause the hair
process more quickly
Which of the following tests should be performed during a relaxer technique to determine if the proper amount of relaxation has occured?
comb test
Which of the following conditions would prevent you from performing a chemcial relaxing service?
scalp abrasions
Sodium hydroxide relaxers are generally used on which type of hair?
overly curly
What method of hairdressing did Madam C.J. Walker invent?>
hair pressing
Ammonium thioglycolate is a reducing agent which causes the hair to:
soften and swell
When was the curl reforming process introduced?
1970's
A sodium hydroxide relaxer service should not be performed on:
hair that has been pre-lightened(bleached)
What should you do before applying any chemicals to the client's hair?
complete a client consultation
Super, strength relaxer is used for which of the following hair conditions?
tightly curled, coarse-textured hair
What is used to smooth the sections of hair during the processing of a relaxer?
the back of a comb
Which of the following is NOT a step taken when performing a virgin sodium hydroxide relaxer service?
pre shampoo the client's hair
Which type of hair color can be applied after a sodium hydroxide relaxer service?
semi-permanent hair color
The processing time generally required for a regular strength thio relaxer is:
up to 20 minutes
When performing a curl reformation service, the rod diameter chosen should be at least how many times larger than the diameter of the natural curl pattern?
two
Once the hair is completely wrapped and saturated in a curl reforming service, apply additional:
booster
What do sodium hydroxide relaxers contain to protect the hair and scalp from irritation?
oil and conditioning agents
What is used to protect the scalp and hairline from caustic chemicals?
base cream
What name was used for sodium relaxers prior to the 1960's?
base relaxers
An acid-balanced neutralizing shampoo or stabilizer is used after the hair is free of chemicals to:
reharden the hair
A good predictor of how your client's hair will react to the chemical rearranger, booster, and neutralizer is a:
preliminary strand test
During a chemical relaxer procedure, if the hair is tested with the back of the comob and there is a minimal amount of indentation, or if the curl pattern reverts or beads, what step may be required?
additoinal smoothing
Why should brushing the hair before any chemical service be avoided?
prevents scalp irritations
If curl reforming is desired, cut off all hair previously treated with which of the following?
sodium hydroxide
Do not perform a curl reformation service on hair that has been relaxed with a sodium hydroxide or no-lye relaxer.
true
The chemical phase of relaxing consists of smoothing/combing the hair and timing and testing the process.
false
Sodium hydroxide relaxers have a pH of 10.5-14.
true
The two major types of relaxer chemicals are sodium hydroxide and ammonium thioglycolate
true
Never apply a thio relaxer over hair that has been relaxed with a sodium hydroxide relaxer or vice versa, since these two chemicals are not compatible and severe damage or breakage can occur.
true
Spreading the chemical relaxer through the hair with the back of a comb or your fingers as it processes is called smoothing.
true
When performing a curl reformation service, the rod diameter chosen is generally at least two times larger than the diameter of the natural curl pattern.
true
Density refers to the number of hair follicles per square inch.
true
Clients with wavy hair have an oval-shaped hair follicle.
true
Elasticity refers to the ability of the hair to absorb moisture, liquids or chemicals.
false
Do not apply sodium hydroxide relaxer to hair that has been colored with permanent hair color or to lightened hair.
true
During a relaxer application, it is important to use an acid-balanced neutralizing shampoo or stabilizer to reharden the hair into its new, straight shape.
true
Curl reformating is a chemical service designed to change overly curly hair to curly or wavy hair.
true
The type of relaxer service performed only in selected areas of the head is known as a retouch relaxer service
false
During a curl reformation procedure, in order to reduce the hair's natural curl, a perm solution is applied to the hair.
false
Curl diffusion is a technique used to loosen or relax overly curly hair patterns by approximately 50% of their natural shape.
true
A protective base cream protects the scalp and ______________________ from caustic chemicals.
hairline
Relaxers that have a pH between 10.5 to 14 are ________ _____________________ relaxers.
sodium hydroxide
The hair's ability to absorb moisture, liquids or chemicals is called _____________.
porosity
Curl reforming is a chemical service designed to change _____________ __________ hair to curly or wavy hair.
overly curly
When the hair is able to return to its orignial state after it is gently strectched indicates the hair's level of ___________________.
elasticity
The techniques used to loosen or relax tightly curled hair patterns by approximately 50% of the natural shape is the ________ _________service.
curl diffusion
The most common ingredient found in products that completely relax the hair is___________ _________.
sodium hydroxide
The main ingredient found in rearrangers is
ammonium thioglycolate
Relaxers that are generally used to relax overly curly hair are know as ______________relaxers.
Sodium hydroxide
When the relaxer is applied to the new growth only to match the prefioulsy relaxed hair, it is referred to as a(n) ________________relaxer service.
Touch up
The most common ingredient found in products that completely straighten the hair is
Sodium hydroxide
When performing a ____________procedure, the rod diameter should be at least two time larger than the diameter of the narual curl pattern
curl reforming
Smoothing/Combing, timing and testing the hair are all part of the _________phase of relaxing.
physical