chemical texture service

50問 • 2年前

問題一覧

How do chemical hair relaxers work?

They increase the hair's pH balance to an alkaline state, which raises the cuticle layer and allows the relaxer to reach the cortex, where restructuring takes place.

A higher frequency of curl reversion occurs in relaxers that use which of the following active ingredients?

ammonium sulfite

When does the majority of the processing for permanent waving occur?

within 5 to 10 minutes

To perm coarse hair, the solution must have enough ____ ions to break the required number of disulfide bonds:

hydrogen

All of the following occur during the consultation for chemical relaxer EXCEPT:

performing a metallic salts test

What is the active ingredient in acid waves?

glycerol monothioglycolate (GMTG)

When using perm rods, which placement minimizes the amount of stress and level of tension on the hair?

perpendicular to the base

Before permanent wave service, what is one of the reasons cosmetologists perform test curls?

to determine if a different rod size is needed

Which of the following practices helps ensure a safe outcome when performing chemical texture services?

Rinse the relaxer and neutralizer from the hair using warm water.

To what areas should protective cream be applied when performing a perm?

around the hairline, the nape of the neck, and both ears

Which of the following item(s) prevents fishhooks?

end papers

What is the proper placement of bands on perm rods?

on the top

A professional perm consultation should do all of the following EXCEPT:

Have the client sign an agreement to come in for follow-up texture services essential to maintaining the style.

When a perm is processed correctly, it breaks and rebuilds how much of the hair's disulfide bonds?

50 percent

What do the most common neutralizers contain?

hydrogen peroxide

____combines the use of a thio relaxer with flat ironing.

Japanese thermal straightening

Which service uses a thio-based chemical process and is recommended for loosening hair texture that is extremely curly into a larger curl pattern?

soft curl permanent

Which of the following is an indication of overprocessed hair?

Hair is curlier at the scalp and straighter at the ends.

A client wants to straighten coarse hair. The client mentions that their hair often seems frizzy and is concerned that if their hair loses all its curl it might look'even frizzier. The client also seems hesitant to make a permanent change. Which service should the cosmetologist recommend?

keratin treatment

Which hydroxide relaxer does not require the application of a protective base?

no-base relaxer

What should the cosmetologist instruct clients to do if perm solution drips into the eyes?

Flush the eyes thoroughly with cool water.

Which item prevents direct contact between the client and the chemical cape?

neck strips

When using a virgin relaxer, apply the relaxer to the ___.

midshaft first and then the ends and scalp

Under which of the following conditions can a texture service be performed?

A strand analysis indicates the hair has low porosity and high elasticity.

When wrapping hair for a perm, which pattern provides the greatest flexibility for directional flow?

bricklay

Which of the following conditions would be cause for a cosmetologist to decline relaxer services?

The client has a pins-and-needles sensation on the scalp, and the hair is thinning.

How does a relaxer retouch differ from the application of a virgin relaxer?

A relaxer retouch is used only on new hair growth.

Waves that are activated from an outside heat source, such as a conventional hooded blowdryer, are ___ waves.

endothermic

What is the proper technique for unwinding test curls to check for proper development?

Unwind the curl two or three turns.

Cosmetologists should recommend that clients take which of the following steps to preserve moisture after a soft curl perm?

wearing a processing cap while sleeping

A client who is considering a chemical relaxer service frequently consumes highly caffeinated beverages. Why does this matter?

Caffeine increases blood circulation, which can lead to faster irritation caused by the use of chemical relaxers.

When dividing hair into base sections for perm wraps, how many rods are used in each section and what factors determine the size of each section?

one rod; length and width of the rod

All of the following are reasons to study chemical texture services EXCEPT:

expens require cosmetologists who perform haircolor services to also perfor texture services as a condition of employment.

Hydroxide relaxers permanently straighten hair by removing one of the bonded sulfur atoms in a disulfide bond. What is the name of this process?

lanthionization

A hair analysis indicates the client has non-porous hair. Which perm type should the cosmetologist recommend?

alkaline/cold wave

Hair that has too many broken disulfide bonds and will not hold a firm curl is considere____.

overprocessed

How do alkaline perms differ from acid perms?

Alkaline perms have a higher pH.

A client has thick hair that extends below the shoulders. The client wants to have uniform curls and volume. Which technique should the cosmetologist choose to meet the client's request while also minimizing stress and tension on the client's hair?

a spiral wrap with half off base placement

What is the main active ingredient in true acid and acid-balanced waving lotions?

glyceryl monothioglycolate

Sodium hydroxide relaxers are commonly called ___.

lye relaxers

Which statement describes no-lye relaxers?

Because no-lye relaxers have a lower pH, they are suitable for clients who have scalp sensitivities.

Hair that is treated with hydroxide relaxers should not be treated with ____.

thio relaxers

Prior to conducting a consultation for chemical relaxer services, which document should clients fill out and cosmetologists review so they can discuss any items of note?

client intake form

How does thio neutralization differ from hydroxide neutralization?

The neutralization of thio relaxers involves oxidation.

All of the following perm rods have a uniform diameter EXCEPT:

concave rods

When using relaxer products, why should the cosmetologist avoid using metal clips?

They could cause a chemical reaction when used with a relaxer.

Which of the following describes a proper technique for winding hair on perm rods?

Place one end paper under the base panel and one above the base panel so that the papers extend past the ends of the hair.

The active ingredient or reducing agent in alkaline permanent waves is ___.

ammonium thioglycolate

Which of the following perm types is processed without a heat source?

alkaline waves

The process that stops the action of permanent wave solution and rebuilds the hair into its new form is called ___.

thio neutralization

Chemistry and chemical

Gia Taylor · 50問 · 2年前

Chemistry and chemical