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Underarm GentleMax Pro Plus Hair Removal: Understanding the Principles and Treatment Sessions

Hongdae Dermatology Skin Clinic 弘大美丽石医院 · ✦뷰티스닥터 합정역✦ · July 15, 2026

Hello. I’m Ha-won Kim from Beauty’s Doctor. ​ ​ As summer approaches or you start wearing short sleeves more often, underarm hair management may require more attention than usual....

AI translation notice

This page is an English translation of a Korean Naver Blog archive entry. For exact wording and source context, verify against the Korean archive original and the original Naver post.

Clinic: Hongdae Dermatology Skin Clinic 弘大美丽石医院

Original post date: July 15, 2026

Translated at: August 17, 2026 at 2:30 PM

Medical note: This translation does not guarantee medical accuracy or suitability for treatment decisions.

Underarm GentleMax Pro Plus Hair Removal: Understanding the Principles and Treatment Sessions image 1

Hello.

I’m Ha-won Kim from Beauty’s Doctor.

As summer approaches

or you start wearing short sleeves more often,

underarm hair management

may require more attention than usual.

Repeated shaving and waxing

can place a burden on the skin,

and the stubble that quickly grows back

may lead you to look into laser hair removal.

Today, I’ll explain how underarm hair removal works,

why multiple sessions and intervals are needed,

and what to look for after the procedure.

3-Line Summary

Underarm GentleMax Pro Plus Hair Removal: Understanding the Principles and Treatment Sessions image 2

1 Laser hair removal works by delivering heat around the hair follicle

through energy that reacts with the pigment in the hair.

2 Because each hair is in a different stage of growth,

multiple treatments may be performed at regular intervals.

3 After the procedure, reduce irritation,

and seek an evaluation if blisters or intense heat sensations persist.

How does it

work?

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Underarm hair removal

is a laser hair removal procedure

in which light energy is absorbed by the pigment in the hair

and delivers heat around the hair follicle.

This process is used to influence

the thickness or growth rate

of hair that grows afterward.

However, the timing and degree of the response

may vary depending on the hair’s color and thickness

as well as the condition of the skin.

Hair with light pigment or hair that is very fine

may show changes more slowly.

Rather than expecting complete removal from the beginning,

it is more natural to observe how the hair changes.

Why is the treatment divided into multiple sessions?

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Not all hairs

are growing at the same time.

They grow according to different cycles,

passing through the growth, regression, and resting phases.

Underarm GentleMax Pro Plus Hair Removal: Understanding the Principles and Treatment Sessions image 5

Because lasers generally respond to hairs

that are in the growth phase,

it is difficult to treat all hairs uniformly

with just one procedure.

It is similar to how grass

does not all grow to the same height at once.

Therefore, underarm hair removal

is less about finishing in one or two sessions

and more about continuing treatment at regular intervals

while checking the response.

The number of sessions and intervals needed

may vary depending on hair density and thickness,

previous hair removal history,

and the skin’s response.

How is the procedure

performed?

First, the condition of the underarm skin

and hair is assessed.

Before the procedure, the hair is trimmed short,

after which the laser is applied to the area.

Because the underarms are a relatively small area,

the procedure usually does not take long,

but you may feel brief stinging or heat

when the laser is applied.

If you are planning underarm hair removal,

you may be advised to avoid waxing or using tweezers

that pull the hair out from the root before the procedure.

It is best to follow the medical institution’s instructions

regarding when to shave and how to prepare.

How should you care for the area after the procedure?

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Immediately after the procedure, the underarms may become red

or feel hot and sensitive.

This usually settles over time,

but the recovery speed may vary from person to person.

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During this period, it is best to temporarily avoid

hot saunas, heated baths, and strenuous exercise.

Because the underarms often experience friction

between clothing and skin,

wearing breathable clothing may also help.

It is better to avoid irritating deodorants or scrub products

until the skin has calmed down.

Rather than rubbing the treated area vigorously,

care for it with gentle moisturization.

Which reactions

should be checked again?

Underarm GentleMax Pro Plus Hair Removal: Understanding the Principles and Treatment Sessions image 8

Mild redness and heat

may occur during the early stages.

However, if pain or heat becomes more severe over time,

or if blisters, oozing, severe swelling,

or persistent changes in skin color appear,

it is better to contact the medical institution

where you received the procedure

rather than making your own judgment and waiting.

If one side becomes noticeably more swollen after the procedure

or the skin appears to be peeling,

it is also necessary to have the current condition checked.

In conclusion

Underarm hair removal

is a treatment approach that considers the hair growth cycle

and monitors the process while allowing intervals between sessions.

Even when the same device is used,

the response may vary depending on the condition of the skin and hair.

Rather than simply following the recommended number of sessions,

it is important to assess your current condition

and decide on the appropriate range and intervals

together with a medical professional.

Frequently Asked Questions

Q. How many sessions will I need?

The number of sessions needed

may vary depending on the hair growth cycle,

thickness, and density.

Rather than deciding on a fixed number in advance,

it is better to plan while checking the response.

Q. Does it hurt a lot?

You may feel a stinging sensation

or brief heat when the laser is applied.

The sensation may vary depending on the condition of the skin

and individual sensitivity.

Q. Can I return to my daily activities immediately after the procedure?

Generally, yes,

but redness and sensitivity may remain.

It is best to avoid saunas and strong friction

and monitor whether the skin is calming down.

Thank you for reading today.

This has been Ha-won Kim from Beauty’s Doctor.

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