PSI Cosmetology Theory Exam Q&As (Verified Answers)
Latest 2025 GRADED A+
Best for shampooing and allows shampoo to lather freely - correct answer
✅Soft Water/ Rain water
Minerals that lessen the ability of the shampoo to lather - correct answer
✅Hard Water
Main ingredient in shampoo - correct answer ✅Purified water/Deionized
water
has two ends the HYDROPHILIC HEAD and LIPOPHILIC TAIL - correct answer
✅Surfactant
Attracted to water - correct answer ✅Hydrophilic Head
Attracted to dirts and oils - correct answer ✅Lipophilic Tail
pH of 4.5-5.5 - correct answer ✅Acid Balanced Shampoo
first to introduce pH balanced shampoo in the 1960s - correct answer
✅Jheri Redding
acidic base to cut through buildup on the hair strand - correct answer
✅Clarifying Shampoo
Most conditioners carry this. Promote retention of moisture - correct
answer ✅Humectants
,PSI Cosmetology Theory Exam Q&As (Verified Answers)
Latest 2025 GRADED A+
remain on the hair 1-5 minutes - correct answer ✅Instant conditioners
brown liquids and penetrate into the cortex to temporarily improve porosity
and increase elasticity - correct answer ✅Protein Conditoners
may be used with hair treatments and scalp tonics for 5 minutes - correct
answer ✅Infraed Lamps
used to normalize oily scalp conditioners! Also never should be used with
tonics that contain alcohol - correct answer ✅High Frequency Unit
position of the rod in relation to its base section - correct answer ✅Base
Control
wrapped perpendicular to the scalp starting with the ends - correct answer
✅croquignole perm wrap
Wound from the ends to scalp and rods hang vertical - correct answer
✅Spiral Perm Wrap
PSI Cosmetology Theory Exam Q&As (Verified Answers)
Latest 2023 GRADED A+
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