Laser Hair Removal Flashcards
6 cards from real Facial Hair Removal practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Laser Hair Removal flashcards as text
What principle does laser hair removal rely on to destroy hair follicles?
Answer: Selective photothermolysis
Selective photothermolysis uses a specific wavelength of light absorbed by melanin in the hair to selectively heat and destroy the follicle.
Which skin and hair combination responds best to laser hair removal?
Answer: Light skin and dark hair
The contrast between light skin and dark hair allows the laser to target melanin in the hair without damaging surrounding skin.
Why does laser hair removal require multiple sessions?
Answer: Hair only responds to laser during the active (anagen) growth phase
Laser energy destroys follicles most effectively during the anagen phase, and not all hairs are in this phase simultaneously.
Which laser type is considered safest for darker Fitzpatrick skin types (IV–VI) for facial hair removal?
Answer: Nd:YAG (1064 nm)
The Nd:YAG laser's longer wavelength bypasses melanin in the epidermis, making it safer for clients with more melanin in the skin.
What pre-treatment instruction is essential before facial laser hair removal?
Answer: Avoid sun exposure and tanning for at least 4–6 weeks prior
Sun exposure increases epidermal melanin, raising the risk of burns, hyperpigmentation, and reduced treatment efficacy.
Which method of hair removal is contraindicated in the weeks before a laser hair removal session?
Answer: Waxing or threading
Waxing and threading remove the hair root that the laser needs to target, so they must be avoided before treatment.