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The process of permanently rearranging the basic structure of overly curly hair into a straight form is

chemical hair relaxing

Of the general types of hair relaxers, which one does not require pre-shampooing?

sodium hydroxide

The chemical required to stop the action of the chemical relaxer is:


The processing time of a chemical relaxer is affected by:

the hair's porosity

What stops the action of any chemical relaxer?


Hydroxide relaxers are usually sold in ______________ formulas

base and no base

What are the three basic steps used in chemical hair relaxing?

processing, neutralizing, conditioning

The strength of relaxer is determined by the strand test. General guidelines suggest that for fine, tinted, or lightened hair, the following strength is used:


The strength of relaxer is determined by the strand test. General guidelines suggest that for coarse virgin hair, the following strength is used:

strong or super

Before giving a relaxing treatment to overly curly hair, the cosmetologist must judge its texture, porosity and:

elasticity and extent of damage, if any

The action of a sodium hydroxide relaxer causes the hair to:

soften and swell

The process of breaking the hair's disulfide bonds during processing and converting them to lanthionine bonds when the relaxer is rinsed from the hair is known as:


The scalp and skin are protected from possible burns when using a hair relaxer by applying:

base cream

After the hair has been processed with a sodium hydroxide relaxer and before the shampoo, the hair should be thoroughly:


The relaxer cream is applied near the scalp last because processing is accelerated in this area by:

body heat

If using a "no base" relaxer, a protective cream may be applied:

to the hairline and around the ears

The best type of shampoo to use after the chemical relaxer is:

a neutralizing shampoo

When applying sodium hydroxide relaxer, the processing cream is applied last to the ______________ and ______________.

scalp area, hair ends

When using the comb method of application, how is the relaxing cream applied?

with the back of the comb

Inspecting the action of the relaxer by stretching the strands to see how fast the natural curls are being removed is called:

periodic strand testing

When hair has been sufficiently straightened, the hair is rinsed rapidly and thoroughly with ______________ water.


The most commonly used methods of hair relaxing are the sodium hydroxide method and the ______________ method.


When performing a sodium hydroxide retouch, where is the product applied first?

to the new growth only

A hair relaxing treatment should be avoided when an examination shows the presence of:

scalp abrasions

To check relaxer processing, smooth and press a strand to the scalp using the back of the comb or your finger. If the curl returns, ______________.

continue processing

The combination of a thio relaxer and a thio permanent wrapped on large tools is called a:

soft curl permanent

What is one safety precaution that must be followed with all chemical hair relaxing services?

wearing protective gloves

One safety precaution for hair relaxing is to avoid ______________ the scalp with the comb or fingernails.


After saturating the rods with neutralizer in a soft curl permanent and processing according to directions, the next step is to:

remove rods carefully

Relaxers which are ionic compounds formed by a metal combined with oxygen and hydrogen are known as:

metal hydroxide relaxers

Sodium hydroxide relaxers are commonly called

lye relaxers

When processing is complete for a soft curl permanent, what is done after rinsing the hair thoroughly with warm water?

each curl is blotted with towel

What is used to restore the hair and scalp to their normal acidic pH?

normalizing lotion

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