How Laser Hair Removal Targets Follicles

First published: 2020-08-09 / Last reviewed: 2026-05-28

This is a guide to GentleMax Pro Plus hair removal compiled by Dr. Choi Byeong-geun of SHINE U Clinic Konkuk (3 minutes' walk from Konkuk Univ. Station, Exit 1).

When the seasons change and clothes become shorter, body hair such as leg hair can be a concern. There are many methods such as waxing, hair removal creams, and tweezers, but each has its own inconveniences. Here, we have summarized how laser hair removal works and how long its effects last.

There are various ways to remove body hair. Each method differs in convenience, duration, and degree of irritation.

• Waxing and tweezers are immediate but require repetition.
• Hair removal creams are simple but have a relatively short duration.
• Laser hair removal incurs a cost but is relatively less irritating and lasts longer.

The principle of laser hair removal is simpler than you might think. It uses a wavelength that is well-absorbed by the melanin pigment that gives hair its color, distinguishing body hair from skin, and selectively applying laser heat energy.

This heat energy penetrates into the skin and acts on the hair follicle, preventing thick body hair from growing back in that area until the hair follicle recovers.

The state where hair follicles do not regenerate continues for a certain period, and it is generally reported to last about 2 years. However, the exact duration varies from person to person.

• The better the body's recovery ability, the more likely hair is to grow back.
• Hair follicles in the beard area tend to recover relatively quickly.
• Therefore, there may be individual differences in the number of sessions and results depending on the area.

Ask how many sessions your area might need

Since heat is applied to the extent that it affects the hair follicles, there is some pain, and it may be felt more intensely if the hair is thick and dense. The equipment is equipped with a cooling system that works to reduce unnecessary thermal irritation to the skin, thereby lowering the possibility of reactions such as erythema or inflammation.

Laser hair removal is a relatively reasonable approach targeting melanin, but the duration and pain may vary individually depending on the area and hair quality. It is wise to check your body hair condition first before starting.

Consult about laser hair removal

Authored by: Dr. Choi Byeong-geun (Chief Director of SHINE U Clinic Konkuk / Member of the Korean Academy of Laser Dermatology and Hair, the Korean Academy of Aesthetic Plastic Surgery and Laser Medicine, the Korean Academy of Filler, etc.) Last reviewed: 2026-05-28

This article is provided for general procedure information and does not replace diagnosis or treatment. The suitability and results of the procedure may vary depending on the individual.