Ttukseom hair salon: flat-crown root perm + layered cut, Onzon Hair

In short

Onzon Hair Seongsu (온즈온헤어 성수점) is a hair salon on the 2nd floor of 46 Achasan-ro in Seongdong, Seoul, near Ttukseom Station. The writer, who has fine hair that falls flat at the crown, got a root volume perm and a women's layered cut at Onzon Hair Seongsu; the flat crown gained natural-looking volume and the heavy line became lighter. Onzon Hair Seongsu was a highly satisfying visit for anyone who wants crown volume and light layers together.

Finished women's layered cut style at Onzon Hair Seongsu

Good to know

Getting there
Ttukseom Station Exit 5 · 1-min walk (store listing, Oct 9, 2026)
Location
2nd floor, 46 Achasan-ro, Seongdong-gu, Seoul (near Ttukseom Station)
Services
Root volume perm, women's layered cut
Booking
Visited with a reservation
Amenities
Lockers for belongings, gowns, coffee and mini snacks

as written by the visitor on Jul 6, 2026

Fine, flat hair: why the writer chose Onzon Hair near Ttukseom Station

The writer has fine hair and a crown that droops, so blow-drying every morning was a struggle (T_T). The ends were also growing out messy, which stressed them out every time they looked in the mirror. But they finally found the hair salon of their life and came home with the best hair ever!

Hairstyle after the treatment at Onzon Hair Seongsu
Hair with a root volume perm and layered cut

This story is for anyone who, like the writer, is bothered by a flat crown or wants to switch to a light, stylish look: the root volume perm and women's layered cut they were totally happy with at Onzon Hair Seongsu (온즈온헤어 성수점), a Seongsu salon!!!

Onzon Hair Seongsu, a hair salon near Ttukseom Station

What are the interior and atmosphere of Onzon Hair Seongsu like?

Onzon Hair Seongsu is a salon near Ttukseom Station with a clean white-and-wood exterior. It's apparently known as one of the prettiest salons around Ttukseom Station.

White-and-wood exterior of Onzon Hair Seongsu

Inside it doesn't feel stuffy at all. Sunlight pours in through the big windows, and it felt like being in a cozy café, haha.

Salon interior with sunlight through large windows

After the reservation was confirmed, the writer took a breather in the waiting area, and the staff all greeted them so warmly that they were in a good mood before even going in.

Waiting area at Onzon Hair Seongsu

At the appointed time, the writer put their things in the luggage locker, changed into a gown and sat down at the seat.

Treatment seat after changing into a gown

How was the shampoo before the treatment?

At Onzon Hair Seongsu, you get a light cleansing shampoo in the shampoo room before the root volume perm. The shampoo bed was really comfortable! The soft lighting made it cozy, and the refreshing scalp wash melted away a whole week of built-up fatigue, haha.

Shampoo room with soft lighting
Getting a cleansing shampoo before the treatment

How is the root volume perm done?

The root volume perm at Onzon Hair Seongsu focused on the crown and the parting line, with rolls wound closely and precisely. The point, they said, is to make a natural curl so it doesn't bend too sharply or leave marks later.

Root volume perm rolls on the crown and parting line

The designer was incredibly fast yet very delicate, and the writer instantly understood why this Seongsu salon has such a word-of-mouth reputation.

Designer doing the root volume perm

With proven, experienced specialists, the salon inspired real trust. The writer was secretly amazed by the designer's aura, sizing up their head shape and hair type in one go and suggesting a style that fit perfectly..

Root volume perm in progress with closely wound rolls

Heat treatment time and the service while waiting

After the rolls were wound, there was a heat treatment step so the curls stay bouncy and last long. While the machine ran, the designer kept checking whether anything felt too hot or uncomfortable, and that attentiveness really touched the writer (T_T). They also brought sweet coffee and mini snacks, so there was no boredom at all. That's Onzon Hair near Ttukseom Station.

Coffee and mini snacks served during the heat treatment

Perm solution smell and products used

While waiting, the writer looked around the salon and saw that all the hair products used for treatments were premium brands! No wonder the perm solution smell wasn't harsh but faint, which was nice. They said they carefully pick only solutions with ingredients that minimize hair damage, haha. Every little detail like this shows the class of a Seongsu salon that does hair well.

Hair products used at the salon

A women's layered cut to lighten the heavy line

After the post-perm shampoo and blow-dry, the designer at Onzon Hair Seongsu trimmed the line that used to fall heavily into a light, trendy women's layered cut. The shampoo started with a water temperature check and cleaned every corner of the scalp, so stress and fatigue seemed to melt from head to toe. After just a few snips, airiness appeared in the hair and a soft texture came to life right before the writer's eyes, which was so amazing..

Crown before the root volume perm
After the root volume perm and layered cut

Before and after the root volume perm: how different is the crown?

Even just from the photo, you can see the crown was stuck flat before the treatment, right (T_T)? But after, the root volume perm was a success, lifting the top naturally!!

This is a Seongsu salon that really brings out the details of both cut and perm, and the writer says: good job me for trusting them..

Finished women's layered cut style at Onzon Hair Seongsu

Even easy styling tips for home

During the finishing blow-dry, the designer at Onzon Hair Seongsu shared lots of tips for easy styling at home by yourself! If you wrestle with limp hair every morning, or want a stylish look that suits you, find your best hair at Onzon Hair, a salon in Seongsu near Ttukseom Station!

Where it is

Onzon Hair Seongsu온즈온헤어 성수점

46 Achasan-ro, Seongdong-gu, Seoul, South Korea (2nd floor)서울특별시 성동구 아차산로 46 2층 온즈온헤어

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