Laser Hair Removal Complete Questions
and Answers | Updated 2025
What is the first rule of laser/ gun safety? - ANSWER Keep your finger off the
trigger
What is PFE? Define: - ANSWER Perifollicular Edema; little pink goosebumps
What does the acronym LASER stand for? - ANSWER Light Amplification by the
Stimulated Emission of Radiation
When is it okay to do LHR for a client who has been treated with accutane? -
ANSWER 6-12 months after the series is completed
List 5 aftercare instructions you would give to a client: - ANSWER -avoid sun
exposure
-no hair removal methods for 48-72 hours post treatment
-no excessive sweating/ working out for 48 hours -no exfoliation for 48-72 hours -
no hot baths/ showers for 24-48 hours -avoid other treatments to the area for 1
week
What skin reactions are considered normal after a laser treatment? - ANSWER
-PFE -itchiness -redness -sensitivity
, List the 5 main steps involved in the day-to-day maintenance of a laser: -
ANSWER -lasers should be free of dust/debris -clean windows,gauges,goggles -
check water reservoir -room stocked -temp controlled
The laser safety officer determines treatment settings for each client? True or
False - ANSWER False
What is pulse delay? - ANSWER a break for the skin's tissue to cool down
allowing for TRT
How many categories are on the Fitzpatrick scale? - ANSWER 6
The wavelengths are the nanometers for the YAG laser and the Alexandrite laser: -
ANSWER YAG= 1064nm
Alexandrite= 755nm
What Fitzpatricks will typically have poor results on the Alexandrite? - ANSWER
4-6
What must laser goggles show? - ANSWER -OD (optical density)
-the wavelengths that the eyewear protects
Which Fitzpatrick scores should generally be put on the Alexandrite laser? -
ANSWER 1-3
List the three phases of hair growth: - ANSWER 1.Anagen 2.Catagen 3.Telogen
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