Chemical Texture Service Cosmetology

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The bonds that are broken by hydroxide relaxers can never be re-formed.

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disulfide

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Chemical texture services permanently alter the hair's natural:

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wave pattern

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A pH between 7.8 and 8.2 is characteristic of:

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acid-balanced waves

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Immersing hair strands in a mixture of peroxide and ammonia is a test for the presence of:

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metallic salts

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Question 5 of 95
Off-base placement creates the:

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least amount of volume

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For chemical relaxing, the back of the head is usually the:

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most resistant area

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The most important factors to consider in a hair analysis for chemical texture services include:

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texture and porosity

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Permanent waving is very similar to

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chemical hair relaxing

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In a single flat wrap, one end paper is:

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placed over the top of the strand

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After processing with perm solution and before neutralizing, you should spend at least five minutes:

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rinsing the hair

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The size of the curl is determined by the:

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size of the perm tool

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An acid-balanced shampoo or a normalizing lotion is used to:

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neutralize hydroxide relaxers

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Hair that resists penetration by chemicals has:

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a strong cuticle

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Another term for straight set wrap is:

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basic perm wrap

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Base direction refers to the angle:

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at which the tool is positioned on the head

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Endothermic permanent waves:

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require heat from an outside source

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In a relaxing procedure, conditioners with an acidic pH that restore the natural pH prior to shampooing are called:

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normalizing solutions

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The terms coarse, medium, and fine are used to describe:

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texture

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Breaking disulfide bonds is the process by which the shape of the hair is changed by:

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permanent waving and chemical relaxing

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In the bookend wrap, one end paper is:

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folded in half over the hair ends

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Neutralization can lighten the hair color because it is a/an:

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oxidation reaction

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Wrapping the hair with too much tension may result in:

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marked or broken hair

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Soft curl permanents and thio relaxers cannot be used on hair that has been treated with a:

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hydroxide relaxer

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A highly alkaline, or high-pH, perm solution is recommended for hair that is

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resistant

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In the curvature perm wrap

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the bases radiate throughout the panels

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In the croquignole wrapping technique, the hair is wrapped

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from ends to scalp

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Permanent waves that use alkanolamine substitutes in their formulas are:

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ammonia free waves

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Periodic strand testing will tell you when the hair is sufficiently

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relaxed

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The hair texture that usually requires more processing during chemical texture services is

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coarse hair

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The ingredients found in depilatories are the same as those found in most

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hair relaxers

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The end paper technique known as the double flat wrap:

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provides the most control over the ends

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Towel-blotting the hair carefully after rinsing out the perm solution is important because excess water left in the hair:

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dilutes the neutralizer

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Base sections are usually the length and width of the:

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perm tool

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Ionic compounds formed by a metal combined with oxygen and hydrogen are called:

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metal hydroxide relaxers

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It is possible to change the hair's natural wave pattern by breaking the side bonds in the:

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cortex

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In the weave technique of wrapping, base areas are divided with:

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zig zag partings

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The hair is wrapped at an angle other than perpendicular to the length of the tool in the technique called:

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spiral wrapping

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After relaxer has been rinsed from the hair, you may apply normalizing solution and leave it on for about:

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five minutes

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Varying diameters along a single strand are characteristic of

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extremely curly hair

Front 40

Through a chemical reaction called reduction, permanent waving solution breaks the:

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disulfide bonds

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Base control is the position of the perm tool in relation to

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its base section

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Lye relaxers is the term commonly applied to

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sodium hydroxide relaxers

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The twists in extremely curly hair:

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are very weak

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The reducing agents used in permanent waving solutions are

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thiol compounds

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Once the hydrogen atoms in the broken disulfide bonds release their bond with sulfur atoms, they join with the in the neutralizer.

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oxygen

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The angle at which the hair is wrapped determines the

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base control

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Guanidine hydroxide relaxer

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straightens hair completley

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Changes in pH are sufficient to break:

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salt bonds

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Thio relaxers use the same reducing agent that is used in permanent waving,:

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ammonium thioglycolate

Front 50

Demipermanent, deposit-only haircolors are safe to use on freshly permed hair, which is stable

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once it has been properly neutralized

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In on-base placement, the hair is wrapped at an angle to its base section.

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45 degrees beyond perpendicular

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Sulfites are marketed as:

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mild alternative relaxers

Front 53

In permanent waving, if too few disulfide bonds are broken, usually:

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the hair is straighter at the scalp

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In a soft curl permanent, the hair is first relaxed, then wrapped

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half off base

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A pH of 6.0 is times more alkaline than a pH of 5.0

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10

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cold wave is another term for

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alkaline waves

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Hair that has been treated with hydroxide relaxers

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should not be permed

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If the hair is wrapped at an angle 45 degrees below perpendicular to its base section, that is known as:

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off-base placement

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Fine, damaged, or color-treated hair should be relaxed with a:

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mild strength relaxer

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About 1/3 of the hair's total strength comes from:

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hydrogen bonds

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For spiral wrapping on extremely long hair, the ideal tool is the

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circle tool

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Rebuilding broken disulfide bonds and deactivating any remaining waving solution in the hair are the functions of:

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neutralizer

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Do not shampoo the client's hair prior to application of a:

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hydroxide relaxer

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In the second part of any perm, a chemical change occurs when the permanent waving solution is applied, breaking the:

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disulfide bonds

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Lanthionization is the process by which hydroxide relaxers remove one atom of from a disulfide bond and convert it into a lanthionine bond

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sulfur

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The permanent wave that has a pH between 4.5 and 7.0 is the

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true acid waves

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Wrapping the hair on base:

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may damage the hair

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During a virgin relaxer, relaxer should not be applied until the last few minutes of processing:

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to the scalp and ends

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The most common neutralizer for permanent waving is

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hydrogen peroxide

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You should not attempt to remove more than 80 percent of the natural curl with:

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chemical relaxing

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The permanent wave that has a pH between 4.5 and 7.0 is the

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true acid waves

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Wrapping the hair on base:

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may damage the hair

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During a virgin relaxer, relaxer should not be applied until the last few minutes of processing:

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to the scalp and ends

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The most common neutralizer for permanent waving is

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hydrogen peroxide

Front 75

You should not attempt to remove more than 80 percent of the natural curl with:

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chemical relaxing