Indiana Cosmetology PSI Exam Complete
Study Guide with Practice Questions and
Correct Answers 2025
Filler
What equalizes the porosity of the hair?
Porosity test
What test involves holding a strand of hair with one hand while sliding the thumb and forefinger of
the hand from end to scalp
never mix color/perm/ relaxers in
metal bowl
what makes hair color oxidative
hydrogen peroxide
most standard developer
20 volume
most common oxidative developer for permanent color
20 Volume
what do you use to cancel out green
red
virgin lightener should stay how far from the scalp
1/2 inch
level
measures the lightness and darkness
,allergic reaction
patch test determines
FOIL method
hair is woven and then encased
Strand test
Determines how the hair will react to the color formula and how long the formula should be left on
the hair.
tone
warmth and coolness
oil, powder, and cream
The 3 forms of hair lighteners are:
permanent color
penetrates the cortex
lye relaxers
Sodium hydroxide relaxers are commonly called
Double flat wrap
most secure method of end papers
hydrogen and salt bonds
these bonds are individually weak
neutralizer
rebonding the hair after perm solution
, disulfide bonds
permanently change the hair strand
Straight rods
perm rods that stay constant
warm water
best to rinse a relaxer out
4
number of sections for relaxer
oxidizing agent
neutralizer or fixative or stabilizer
glyceryl monothioglycolate @i @i
@i The main ingredient in a true acid wave
@i @i @i @i @i @i @i
Ammonium thioglycolate @i @i
@i Main ingredient in alkaline perms
@i @i @i @i
Ph of acid perms
@i @i @i @i
@i 6.0-7.0
Acid perm @i @i
@i used on highly porous hair
@i @i @i @i
Alkaline perm
stronger process time , stronger solution, self heating
Study Guide with Practice Questions and
Correct Answers 2025
Filler
What equalizes the porosity of the hair?
Porosity test
What test involves holding a strand of hair with one hand while sliding the thumb and forefinger of
the hand from end to scalp
never mix color/perm/ relaxers in
metal bowl
what makes hair color oxidative
hydrogen peroxide
most standard developer
20 volume
most common oxidative developer for permanent color
20 Volume
what do you use to cancel out green
red
virgin lightener should stay how far from the scalp
1/2 inch
level
measures the lightness and darkness
,allergic reaction
patch test determines
FOIL method
hair is woven and then encased
Strand test
Determines how the hair will react to the color formula and how long the formula should be left on
the hair.
tone
warmth and coolness
oil, powder, and cream
The 3 forms of hair lighteners are:
permanent color
penetrates the cortex
lye relaxers
Sodium hydroxide relaxers are commonly called
Double flat wrap
most secure method of end papers
hydrogen and salt bonds
these bonds are individually weak
neutralizer
rebonding the hair after perm solution
, disulfide bonds
permanently change the hair strand
Straight rods
perm rods that stay constant
warm water
best to rinse a relaxer out
4
number of sections for relaxer
oxidizing agent
neutralizer or fixative or stabilizer
glyceryl monothioglycolate @i @i
@i The main ingredient in a true acid wave
@i @i @i @i @i @i @i
Ammonium thioglycolate @i @i
@i Main ingredient in alkaline perms
@i @i @i @i
Ph of acid perms
@i @i @i @i
@i 6.0-7.0
Acid perm @i @i
@i used on highly porous hair
@i @i @i @i
Alkaline perm
stronger process time , stronger solution, self heating
