WorksheetsHair Perming Principles Worksheet (Grade 9)
Total questions: 72
Worksheet time: 36mins
What type of bond is primarily broken and reformed during hair perming?
Hydrogen bond
Disulfide bond
Ionic bond
Peptide bond
Which chemical agent is commonly used to break disulfide bonds during perming?
Hydrogen peroxide
Ammonium thioglycolate
Glycerol monothioglycolate
Sodium hydroxide
What is the role of hydrogen peroxide in the perm process?
Break disulfide bonds
Neutralize the reducing agent and reform disulfide bonds (oxidation)
Swell the hair shaft
Serve as a conditioning agent
Acid perms typically have a pH range of?
6.9 to 7.2
8.0 to 9.5
10 to 11
Below 6
What type of hair is alkaline perm generally best suited for?
Fine, delicate hair
Soft, fragile hair
Rough, strong hair
Chemically treated hair
Which type of perm lotion requires heat during the perming process?
Acid perm lotion
Alkaline perm lotion
Both a and b
Neither a nor b
Which is milder and causes less damage to the hair?
Alkaline perm
Acid perm
Both are equally harsh
None of the above
What is the main ingredient in alkaline perm lotion?
Glycerol monothioglycolate
Ammonium thioglycolate with ammonia
Hydrogen peroxide
Sodium hydroxide
How do physical side bonds in hair behave during perming?
They break chemically and reform chemically
They break with heat and water and reform when drying
They remain intact during perming
They are unaffected by perming chemicals
What causes the hair to swell during the perming process?
The alkaline solution opens the cuticle
The neutralizer seals the cuticle
The heat used in acid perms
The hair's natural moisture content
Which perm system is considered more modern and controls hair temperature with a computer?
Alkaline perm
Acid perm
Digital perm
Cold wave perm
What happens to keratin molecules during perming?
They dissolve
The disulfide bonds between them are broken and reformed allowing reshaping
They are detached from hair cortex
They harden permanently
Why should hair be rinsed thoroughly before applying the neutralizer?
To remove excess ammonia which can lighten hair
To maintain alkaline pH
To cool the hair down
To swell the hair shaft more
What is the pH range of alkaline perm lotions typically?
4-5
6.9-7.2
8-9.5
10-11
Which perm type uses glycerol monothioglycolate?
Acid perm
Alkaline perm
Neutral perm
Digital perm
What is the neutralizer commonly used in perming?
Ammonium hydroxide
Hydrogen peroxide
Sodium hydroxide
Glycerol monothioglycolate
What does the oxidation process achieve in perming?
Break disulfide bonds
Rebuild disulfide bonds
Open the hair cuticle
Protect hair moisture
What risk is higher if perm chemicals are used improperly?
Hair loss and scalp irritation
Faster hair growth
Hair strengthening
Color retention
Which type of perm requires minimal or no external heat?
Acid perm
Alkaline perm
Digital perm
Neutral perm
What chemical in alkaline perms causes the cuticle to open?
Ammonia
Hydrogen peroxide
Glycerol
Thioglycolic acid
Which perm lotion is generally stronger?
Acid perm lotion
Alkaline perm lotion
What is the primary factor determining the choice between acid and alkaline perm lotions?
Hair color
Hair texture and condition
Hair length
Scalp sensitivity only
For delicate or damaged hair, which perm type is preferred?
Alkaline perm
Acid perm
Digital perm
Neutral perm
What is the role of perm lotion strength?
Determines speed of wave formation
Influences amount of cuticle damage
Matches hair type and condition
All of the above
Which perm type is better for fine or fragile hair?
Acid perm
Alkaline perm
Both are equally good
None of the above
Which perm lotion has a higher pH?
Acid perm lotion
Alkaline perm lotion
Which substance in perm lotion acts as the reducing agent?
Thioglycolate compounds
Hydrogen peroxide
Ammonia
Water
What effect does heat have on acid perms?
Speed up chemical reaction and improve curl formation
Break down hair proteins
Neutralize perm lotion
None
What is digital perm especially known for?
Gentle on hair, uses computer-controlled heat, produces loose curls
Creates tight spiral curls without using heat
Uses strong alkaline lotion and is harsh on hair
Produces waves without any heat or machine involvement
A client with fragile, color-treated hair wants a perm. Which perm lotion is best to use?
Alkaline perm lotion
Acid perm lotion
Strong ammonium thioglycolate perm
No perm recommended
After applying perm lotion, the stylist notices that the hair cuticle is not opening. What could be the cause?
pH of lotion too high
Perm lotion not left on long enough
Cuticle too damaged to open
Neutralizer applied too early
A client’s hair has strong, coarse texture resistant to curls. Which perm would be most effective?
Mild acid perm
Alkaline perm
No perm
Neutral perm
While rinsing after perm lotion application, temperature used is too hot. What risk does this pose?
Underprocessing curls
Increased scalp irritation
Overdrying and damage
No effect
A stylist forgets to apply neutralizer after perm lotion. What will happen?
Curls will not set permanently
Hair will become dry and brittle
Hair color will change
Scalp will be irritated
Which condition of hair suggests alkaline perm lotion might cause excessive damage?
Virgin strong hair
Fine, fragile hair
Chemically untreated hair
Curly hair
When creating an acid perm, heat is applied because:
It activates the perm lotion
It opens the hair cuticle
It neutralizes the perm lotion
It conditions the hair
What happens if neutralizer is applied too early after perm lotion?
Curls will be tighter
Perming process will stop prematurely
Hair will become stronger
Hair color changes
A client with oily scalp is getting a perm. What precaution should stylist take?
Use stronger perm lotion
Wash hair thoroughly before perm
Use acid perm
Avoid perm
Why are disulfide bonds targeted during perming?
They hold the hair color
They determine hair’s shape and curl pattern
They maintain scalp moisture
They increase hair porosity
What is the result of failing to rinse perm lotion completely before neutralizing?
Overprocessing and damage
Lack of curl formation
Hair becomes dry
No effect
What hair condition requires using an acid perm?
Resistant coarse hair
Chemically damaged or fragile hair
Strong untreated hair
Thick wavy hair
If a client wants strong, tight curls but has very fine hair, which perm should stylist avoid?
Alkaline perm
Acid perm
Neutral perm
Digital perm
What happens chemically during the neutralizing step?
Disulfide bonds are broken
Hydrogen atoms are removed and disulfide bonds reformed
Hair cuticle is opened
Hair is moisturized
Why is pH important in perm lotion selection?
It affects the cuticle opening and bond breaking
It controls hair color
It determines drying time
It affects hair shine only
Which perm type produces softer, looser curls and requires heat?
Acid perm
Alkaline perm
Digital perm
Neutral perm
What could happen if a perm solution is left longer than recommended?
Hair will have stronger curls
Hair may suffer irreversible damage
No change in outcome
Hair will grow faster
For hair that is dull and porous, what should stylist consider before perming?
Use alkaline perm
Pre-condition the hair
Use strong heat
Skip perming
A client complains of scalp burning during perm. What is the likely cause?
Perm lotion contact with scalp
Hair being too dry
Insufficient neutralizing
Using acid perm
Why is it important to do a patch test before perming?
To check curl size preference
To check for allergic reaction to chemicals
To test hair length
To try rod size positioning
What is the first stage in the perming process?
Fixing
Softening
How does alkaline perm lotion affect the hair cuticle?
Opens and swells the cuticle for lotion penetration
Seals the cuticle
Moisturizes the hair shaft
Does not affect cuticle
When would a digital perm be preferred over other perms?
For very tight curls
For loose, natural wave texture with heat control
For speed of processing
For chemically damaged hair
Which bond type reforms during neutralization to hold the new hair shape?
Hydrogen bond
Ionic bond
Disulfide bond
Peptide bond
If a client has highlighted hair, which perm is safest?
Alkaline perm
Acid perm
No perm
Neutral perm
What is a common cause of uneven curls in perming?
Uneven rod placement or tension
Using heat for acid perm
Over rinsing
Using neutralizer twice
Which is correct about exothermic perms?
They generate heat to speed up processing
They use cold temperature only
They do not require neutralizer
They have a neutral pH
What ingredient in alkaline perm lotion raises the pH to open the hair shaft?
Ammonia
Hydrogen peroxide
Glycerol
Thioglycolic acid
How long should perm lotion typically be left on hair?
5–10 minutes
15–30 minutes depending on hair type
1 hour
2 minutes
What is the effect of using a perm lotion not suited for the hair condition?
No effect
Possible hair damage or poor curl formation
Hair grows faster
Hair color changes permanently
A client has recently chemically treated, dry, brittle hair. What is the safest perm option?
Alkaline perm lotion
Acid perm lotion
Strong ammonium thioglycolate perm
No perm recommended
During a consultation, the client reports scalp irritation and flaking. What should the stylist do before perming?
Proceed with regular perm
Perform a patch test and postpone perm until scalp heals
Use stronger neutralizer
Apply more perm lotion
Which condition contraindicates a perm?
Healthy, untreated hair
Scalp abrasions or open wounds
Chemically treated hair
Slightly damaged hair
What precaution should be taken if a client has a history of allergic reaction to perm solution?
Use double-strength lotion
Perform a skin allergy test 24-48 hours before
Skip neutralizer
Use heat to speed processing
A client's hair swells excessively during perming and feels mushy. What does this indicate?
Under processing
Over processing and possible damage
Normal reaction
Use more lotion
What should stylist avoid when perming hair with scalp psoriasis?
Acid perm
Alkaline perm
Perming at all
Use extra lotion
How long should you wait after a hair color treatment before perming?
Immediately
1-2 days
1-2 weeks
1 month
What must be checked before applying perm lotion?
Client’s hair color only
Scalp condition and sensitivity
Hair length
Rod size
When perming very fine or fragile hair, which lotion is safest?
Strong alkaline perm
Acid perm
High pH lotion
No lotion
A client has a history of eczema on the scalp. What safety measure applies?
Use heat to improve perm result
Do a patch test and inspect scalp carefully
Perm as usual
Use stronger lotion
If a client reports eye irritation or burning during perming, what should be done?
Continue processing
Immediately rinse with cool water and seek medical advice
Ignore and finish
Apply neutralizer early
Why is a patch test important before perming?
To determine curl size
To test for allergic reaction
To check hair length
To test rod placement
Why is a patch test important before perming?
To determine curl size
To test for allergic reaction
To check hair length
To test rod placement
