COSMETOLOGY PSI EXAM PREP
QUESTIONS AND VERIFIED ANSWERS,
2025 LATEST
◉Porosity test . Answer: 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 . Answer: metal bowl
◉what makes hair color oxidative . Answer: hydrogen peroxide
◉most standard developer . Answer: 20 volume
◉most common oxidative developer for permanent color . Answer: 20
Volume
◉what do you use to cancel out green . Answer: red
◉virgin lightener should stay how far from the scalp . Answer: 1/2 inch
,◉level . Answer: measures the lightness and darkness
◉allergic reaction . Answer: patch test determines
◉FOIL method . Answer: hair is woven and then encased
◉Strand test . Answer: Determines how the hair will react to the color
formula and how long the formula should be left on the hair.
◉tone . Answer: warmth and coolness
◉oil, powder, and cream . Answer: The 3 forms of hair lighteners are:
◉permanent color . Answer: penetrates the cortex
◉lye relaxers . Answer: Sodium hydroxide relaxers are commonly
called
◉Double flat wrap . Answer: most secure method of end papers
◉hydrogen and salt bonds . Answer: these bonds are individually weak
, ◉neutralizer . Answer: rebonding the hair after perm solution
◉disulfide bonds . Answer: permanently change the hair strand
◉Straight rods . Answer: perm rods that stay constant
◉warm water . Answer: best to rinse a relaxer out
◉4 . Answer: number of sections for relaxer
◉oxidizing agent . Answer: neutralizer or fixative or stabilizer
◉glyceryl monothioglycolate . Answer: The main ingredient in a true
acid wave
◉Ammonium thioglycolate . Answer: Main ingredient in alkaline perms
◉Ph of acid perms . Answer: 6.0-7.0
◉Acid perm . Answer: used on highly porous hair
QUESTIONS AND VERIFIED ANSWERS,
2025 LATEST
◉Porosity test . Answer: 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 . Answer: metal bowl
◉what makes hair color oxidative . Answer: hydrogen peroxide
◉most standard developer . Answer: 20 volume
◉most common oxidative developer for permanent color . Answer: 20
Volume
◉what do you use to cancel out green . Answer: red
◉virgin lightener should stay how far from the scalp . Answer: 1/2 inch
,◉level . Answer: measures the lightness and darkness
◉allergic reaction . Answer: patch test determines
◉FOIL method . Answer: hair is woven and then encased
◉Strand test . Answer: Determines how the hair will react to the color
formula and how long the formula should be left on the hair.
◉tone . Answer: warmth and coolness
◉oil, powder, and cream . Answer: The 3 forms of hair lighteners are:
◉permanent color . Answer: penetrates the cortex
◉lye relaxers . Answer: Sodium hydroxide relaxers are commonly
called
◉Double flat wrap . Answer: most secure method of end papers
◉hydrogen and salt bonds . Answer: these bonds are individually weak
, ◉neutralizer . Answer: rebonding the hair after perm solution
◉disulfide bonds . Answer: permanently change the hair strand
◉Straight rods . Answer: perm rods that stay constant
◉warm water . Answer: best to rinse a relaxer out
◉4 . Answer: number of sections for relaxer
◉oxidizing agent . Answer: neutralizer or fixative or stabilizer
◉glyceryl monothioglycolate . Answer: The main ingredient in a true
acid wave
◉Ammonium thioglycolate . Answer: Main ingredient in alkaline perms
◉Ph of acid perms . Answer: 6.0-7.0
◉Acid perm . Answer: used on highly porous hair
