Even after 10 sessions,

someone said it wouldn’t go away

Why it changed after just 3 sessions

Last Thursday, in the clinic,

a man in his mid-30s came in.

He had already had underarm hair removal

10 times elsewhere,

but he said he was still using a razor,

he said.

His hair was thick and his skin was

slightly darker,

but when I looked at the chart, each session’s

energy setting was almost the same.

What exactly is different

here, you ask

GentleMax Pro Plus

is an hair-removal laser that can deliver

Alexandrite 755nm and

Nd:YAG 1064nm,

these two wavelengths in one device.

Unlike a typical single-wavelength device,

it can switch wavelengths depending on skin tone and hair depth,

and even within the same area

it can use different settings.

This makes a

pretty big difference in actual results.

Why do some people

see less effect?

GentleMax Pro Plus

uses two wavelengths, 755nm and 1064nm.

By recording the number of shots and energy each session,

premium hair removal can be optimized for the

next session.

The key is wavelength selection and record keeping,

these two things.

755nm has a high melanin absorption rate, so

it works well when coarse, dark hair is on light skin.

But if used on skin with a lot of pigment,

the risk of burns increases.

1064nm has a longer wavelength, so it penetrates deeper,

and because it absorbs less melanin, it is

better for darker skin or

deep-rooted hair like men’s beards.

For that client I mentioned earlier,

I set it mainly to 1064nm based on

skin tone and hair thickness.

First session: about 180 shots, J value recorded.

In the second session, I checked the response and increased the energy one level,

and in the third session,

I mixed 755nm and 1064nm by area.

Then after the third session,

he said he was "almost no longer shaving".

It varies by case, but

this is how I usually record things.

Each session’s wavelength, spot size, energy (J),

cooling strength, number of shots, and skin response.

If you don’t keep this, then in the next session

you end up going by instinct,

and then even after 10 sessions

some cases just stay stuck in place.

Director Wi Young-jin’s key takeaway

The reason results differ even with the same device is

whether the wavelength was chosen to match my skin,

and whether the energy was adjusted while

building data each session.

Precision in settings comes before the number of sessions.

This is how I

divide it in the clinic

I don’t use the same settings for everyone.

I approach it separately according to skin tone, hair thickness,

and area.

• Light skin + dark hair (755nm)

Good absorption,

stepwise increase while checking the response each session

• Darker skin (1064nm)

Lower burn risk, targets deeper follicles

• Men’s beard, coarse roots (mainly 1064nm)

Deep follicles require a longer wavelength, interval 4~6 weeks

• Fine facial hair (755nm)

For fine hair, energy control is the key

But this isn’t always a good thing.

A dual wavelength doesn’t mean it works

dramatically well for everyone.

Hormone-related hirsutism or vellus hair

responds less to the laser itself,

so results may come more slowly than expected.

Still, even in those cases,

if you handle the settings delicately,

the results are better than with a single-wavelength device.

Three questions I get most often

in the clinic

Q1. What interval between sessions is appropriate?

A. It depends on the area,

but underarms and legs are usually every 4~6 weeks,

and face and beard are recommended every 3~4 weeks.

Because the laser only responds to hair in the anagen (growth) phase,

if you do it too soon, you just waste money

and get no effect.

Q2. How many sessions do I need in total?

A. To be honest, most people are satisfied after

an average of 6~8 sessions.

But areas affected by hormones

(beard, women’s upper lip)

can take more than 10 sessions.

On the other hand, areas like the underarms

can be very satisfying even after

4~5 sessions.

Q3. Are there any precautions after the procedure?

A. For about 48 hours, avoid hot showers,

saunas, and intense exercise.

The most important thing is sunscreen.

After laser treatment, melanin is in a more sensitive state,

so pigmentation can occur.

Rarely, folliculitis can occur, but

if that happens, don’t put up with it—

just come in right away.

If anything is confusing, in the clinic

I’ll look at it directly and explain.

That’s all from Wi Young-jin.

GentleMax Pro Plus hair removal treatment details

This month: GentleMax Pro Plus

Read next

▶After prescribing Saxenda for 6 months, honestly, this is how it is

▶[Beautystone Column] The trap of ‘low-cost procedures’ that ruin only your skin while trying to save on tattoo removal costs

▶5 criteria for recommending a Hongdae dermatology clinic, explained directly by a specialist

▶[Beautystone Clinic] Director Wi Young-jin explains Juvellook Glam body treatment

▶[Beautystone] Director Wi Young-jin’s method for distinguishing a "fairly priced Ultherapy"

Frequently asked questions

Q. What is an appropriate interval between sessions?

A. It varies by area, but for underarms and legs, we usually recommend every 4–6 weeks, and for the face and beard, every 3–4 weeks.

Q. About how many sessions do I need?

A. To be honest, most people are satisfied after an average of 6 to 8 sessions.

Q. Are there any precautions I should take after the procedure?

A. Please avoid hot showers, saunas, and strenuous exercise for about 48 hours.

Q. Are hormone-affected areas still difficult to treat even with a dual wavelength laser?

A. For hormonal hirsutism and fine peach fuzz, laser response can be lower, so results may appear more slowly than expected. However, with precise and delicate settings, this approach still yields better results than a single wavelength. Please note that areas like the mustache and chin can sometimes require 10 or more sessions, as results vary significantly from person to person.