PSI BARBERING COMPREHENSIVE
STUDY GUIDE 2026 FULL QUESTIONS
AND SOLUTIONS GRADED A+
◍ When using a chemical relaxer, which of the following must you avoid
using?.
Answer: Bleaches or high-lift color products
◍ Alkaline waves are recommened for all of the following hair types
EXECPT.
Answer: Fine hair
◍ When using a chemical relaxer, it changes the shape of the hair by breaking
down which of the following bonds?.
Answer: Disulfide bonds
◍ Useful product disposal guidelines and medical first aid information can be
found on a:
A. MSDS
B. OSHA
C. HCS
D. EPA.
Answer: A. MSDS
◍ Chemical products that destroy all bacteria, fungus, and viruses (But not
spores) on surfaces are:
A. Antiseptics
B. Disinfectants
C. Sterilizers
D. Sanitizers.
Answer: B. Disinfectants
,◍ State regulatory agencies include which of the following:
A. Licensing agencies
B. Board of cosmetology
C. Health departments
D. All of the above.
Answer: D. All of the above
◍ When using relaxers incorrectly, which of the following could happen?.
Answer: The hair melts
◍ In which of the following areas would you start a relaxer retouch
application?.
Answer: Area most resistant
◍ All of the following are relaxers EXECPT.
Answer: No-lye relaxers
◍ What is the name for a permanent wrap when it is wrapped from the ends to
the scalp in overlapping layers?.
Answer: Croquignole Perm Wrap
◍ Laws are also called:
A. Regulations
B. Guidelines
C. Statutes
D. Rules.
Answer: C. Statutes
◍ What does a stylist look for during a scalp analysis for chemical
procedures?.
Answer: Abrasions on scalp
◍ What equalizes porosity?.
Answer: Fillers
◍ Invasions of body tissue by disease causing pathogenic bacteria can result in
an:
, A. Infection
B. Antitoxin
C. Abrasion
D. Inflammation.
Answer: A. Infection
◍ Fillers are NOT used for?.
Answer: Grey coverage
◍ What would you use for dramatically lighter hair color?.
Answer: Prelightening
◍ Which hydrogen peroxide developers is used with most high-lift colors?.
Answer: 40-Volume
◍ Which term means to remove all visible dirt and debris from tools,
implements and equipment by washing with soap and water:
A. Sterilization
B. Disinfect
C. Antiseptic
D. Clean.
Answer: D. Clean
◍ One celled microorganisms with both plant and animal characteristics are
A. Disease
B. Bacteria
C. Cells
D. Minute.
Answer: B. Bacteria
◍ Nonpathogenic bacteria are:
A. Harmful
B. Harmless
C. Disease producing
D. Toxic.
Answer: B. Harmless
STUDY GUIDE 2026 FULL QUESTIONS
AND SOLUTIONS GRADED A+
◍ When using a chemical relaxer, which of the following must you avoid
using?.
Answer: Bleaches or high-lift color products
◍ Alkaline waves are recommened for all of the following hair types
EXECPT.
Answer: Fine hair
◍ When using a chemical relaxer, it changes the shape of the hair by breaking
down which of the following bonds?.
Answer: Disulfide bonds
◍ Useful product disposal guidelines and medical first aid information can be
found on a:
A. MSDS
B. OSHA
C. HCS
D. EPA.
Answer: A. MSDS
◍ Chemical products that destroy all bacteria, fungus, and viruses (But not
spores) on surfaces are:
A. Antiseptics
B. Disinfectants
C. Sterilizers
D. Sanitizers.
Answer: B. Disinfectants
,◍ State regulatory agencies include which of the following:
A. Licensing agencies
B. Board of cosmetology
C. Health departments
D. All of the above.
Answer: D. All of the above
◍ When using relaxers incorrectly, which of the following could happen?.
Answer: The hair melts
◍ In which of the following areas would you start a relaxer retouch
application?.
Answer: Area most resistant
◍ All of the following are relaxers EXECPT.
Answer: No-lye relaxers
◍ What is the name for a permanent wrap when it is wrapped from the ends to
the scalp in overlapping layers?.
Answer: Croquignole Perm Wrap
◍ Laws are also called:
A. Regulations
B. Guidelines
C. Statutes
D. Rules.
Answer: C. Statutes
◍ What does a stylist look for during a scalp analysis for chemical
procedures?.
Answer: Abrasions on scalp
◍ What equalizes porosity?.
Answer: Fillers
◍ Invasions of body tissue by disease causing pathogenic bacteria can result in
an:
, A. Infection
B. Antitoxin
C. Abrasion
D. Inflammation.
Answer: A. Infection
◍ Fillers are NOT used for?.
Answer: Grey coverage
◍ What would you use for dramatically lighter hair color?.
Answer: Prelightening
◍ Which hydrogen peroxide developers is used with most high-lift colors?.
Answer: 40-Volume
◍ Which term means to remove all visible dirt and debris from tools,
implements and equipment by washing with soap and water:
A. Sterilization
B. Disinfect
C. Antiseptic
D. Clean.
Answer: D. Clean
◍ One celled microorganisms with both plant and animal characteristics are
A. Disease
B. Bacteria
C. Cells
D. Minute.
Answer: B. Bacteria
◍ Nonpathogenic bacteria are:
A. Harmful
B. Harmless
C. Disease producing
D. Toxic.
Answer: B. Harmless
