Laser Hair Removal: How It Works, Who It Suits and Recovery

Laser hair removal uses wavelengths absorbed by hair pigment to heat the follicle and weaken regrowth. Treatment takes about 5–30 minutes depending on area, downtime is minimal (temporary redness or follicle swelling), and hair becomes finer and sparser with each session.
Medically reviewed by Dr. Lee Da-in, Medical Director, Daybeau Clinic Seomyeon · Last reviewed October 2026

What is Laser Hair Removal?

Laser hair removal uses wavelengths absorbed by hair pigment to heat the follicle and weaken regrowth. GentleMax Pro Plus has 755 nm and 1064 nm wavelengths plus cooling, set according to skin tone and hair thickness.

Common concerns

  • Underarm hair
  • Upper lip and facial hair
  • Arm and leg hair
  • Beard

Treatment areas: underarms, upper lip, face, arms, legs, beard.

Key facts

  • Device / product: GentleMax Pro Plus and Avalanche
  • Treatment time: about 5–30 minutes depending on area
  • Anaesthesia: cooling (numbing cream if needed)
  • Downtime: minimal (temporary redness or follicle swelling)
  • When results show: hair becomes finer and sparser with each session
  • Repeat interval: usually 4–8 weeks apart for 5 or more sessions, following hair cycles

Learn more

See the Laser Hair Removal procedure steps, recovery and side effects, and how it compares in Laser Hair Removal vs Brazilian Laser Hair Removal.

Medical notice: every procedure can cause side effects such as swelling, bruising, redness, pain, inflammation or pigmentation, and results and their duration vary between individuals. Suitability and method are decided only after a consultation with the doctor. This page is general information, not a diagnosis. Fees follow the clinic's official non-covered fee schedule.

Frequently Asked Questions

How many hair removal sessions do I need?

It depends on the area and hair thickness; 5 or more sessions are often recommended.

How should I shave before treatment?

Shave the day before or on the day, and avoid waxing or plucking.

Can I have hair removal in summer?

Yes, but keep the treated area out of the sun.

Dr. Lee Da-in

Not sure this is the right treatment?

Send Dr. Lee's team a photo and your travel dates. We'll suggest a plan and a consultation time.

Ask on WhatsApp Call +82 51-925-7890