# Seongsu hair salon, Seoul: damaged-hair Ayunchae clinic + layered cut

- By Haesol (https://superchart.com/en/@dining-room-clock-2/)
- Written Sep 15, 2026
- Local places › Hair & beauty salons › Seongdong, Seoul
- Sponsored: This post was written as a paid visit sponsorship for Toni&Guy Seongsu.
- English edition: https://superchart.com/en/@dining-room-clock-2/seongsu-hair-salon-layered-cut-clinic/
- Also in: [한국어](https://superchart.com/ko/@dining-room-clock-2/seongsu-hair-salon-layered-cut-clinic/index.md)

## In short

Toni&Guy Seongsu is a hair salon with gallery-like interiors on Sangwon 1-gil near Seongsu Station in Seongdong, Seoul. After a check of dry scalp and splitting ends, Toni&Guy Seongsu did a scalp scrub and the 3-step Ayunchae clinic (moisture, protein, cuticle), then designer Terry cut in layers. Since then, simply shaking the hair dry with a blow dryer sets a natural curl, so morning styling takes far less time.

## Good to know

- **Location**: 2nd and 3rd floor, 35 Sangwon 1-gil, Seongdong-gu, Seoul, near Seongsu Station
- **Treatments received**: Ayunchae clinic (scalp scrub + 3-step moisture, protein and cuticle care) + layered cut
- **Stylist**: Designer Terry
- **Service**: Drinks and snacks served while you wait

*as written by the visitor on Sep 15, 2026*

With the change of season my hair had gotten noticeably frizzy and dry, and I'd been wanting a change of style, so I went looking for a Seongsu-dong hair salon known for stylish cuts.

![Exterior of Toni&Guy Seongsu, a hair salon in Seongsu-dong](https://img.superchart.com/images/seongsu-hair-salon-layered-cut-clinic/seongsu-hair-salon-layered-cut-clinic-01-1bamo-900.webp)

## What is Toni&Guy Seongsu near Seongsu Station like inside?

Toni&Guy Seongsu is easy to get to, right on Sangwon 1-gil near Seongsu Station, and it greets you with a sleek, gallery-like interior right from the entrance. I'd booked in advance with designer Terry, who's known among the salon's stylish team for her meticulous touch with short hair.

![Gallery-like entrance of Toni&Guy Seongsu](https://img.superchart.com/images/seongsu-hair-salon-layered-cut-clinic/seongsu-hair-salon-layered-cut-clinic-02-rkvqq-900.webp)

The moment I walked in, staff kindly took my coat and bag and gave me a thorough one-on-one consultation, so my first impression was already really pleasant. 💇‍♀️

![Seating area inside the salon where the consultation took place](https://img.superchart.com/images/seongsu-hair-salon-layered-cut-clinic/seongsu-hair-salon-layered-cut-clinic-03-1umf7-900.webp)

![Café-like interior space of the salon](https://img.superchart.com/images/seongsu-hair-salon-layered-cut-clinic/seongsu-hair-salon-layered-cut-clinic-04-1dvbf-900.webp)

The hip, café-like space made a strong impression, and knowing I'd get my treatment in such a pleasant setting already had me excited.

![Interior of the pleasant treatment area](https://img.superchart.com/images/seongsu-hair-salon-layered-cut-clinic/seongsu-hair-salon-layered-cut-clinic-05-8i4z7-900.webp)

![A hip corner of the salon](https://img.superchart.com/images/seongsu-hair-salon-layered-cut-clinic/seongsu-hair-salon-layered-cut-clinic-06-4ifkz-900.webp)

## Consultation at Toni&Guy Seongsu for a dry scalp and splitting ends

Before starting the actual treatment, they carefully checked the dry scalp and split ends that had been bothering me.

![Checking scalp and hair condition](https://img.superchart.com/images/seongsu-hair-salon-layered-cut-clinic/seongsu-hair-salon-layered-cut-clinic-07-1e105-900.webp)

We decided to go with the Ayunchae clinic treatment to restore moisture and nutrition, paired with a layered cut for a light yet stylish line.

## How does the 3-step Ayunchae clinic work?

The Ayunchae clinic at Toni&Guy Seongsu started with a scalp scrub, then moved through three steps: moisture, protein, and cuticle care. The first step, a scalp scrub for deep-cleansing my stuffy scalp, brought a refreshing, cool tingle spreading across my whole scalp, like all the built-up sebum and residue were washing away.

![Deep-cleansing scalp scrub treatment in progress](https://img.superchart.com/images/seongsu-hair-salon-layered-cut-clinic/seongsu-hair-salon-layered-cut-clinic-08-iszy6-900.webp)

![Product used for scalp cleansing](https://img.superchart.com/images/seongsu-hair-salon-layered-cut-clinic/seongsu-hair-salon-layered-cut-clinic-09-5xyks-900.webp)

Next came moisture care to add deep hydration into my dry hair, protein care to firm up the hair's inner structure, and finally cuticle care to seal in the nutrients by coating the hair's surface — a systematic 3-step process with generous amounts of Ayunchae product applied throughout.

![Applying the 3-step Ayunchae clinic product](https://img.superchart.com/images/seongsu-hair-salon-layered-cut-clinic/seongsu-hair-salon-layered-cut-clinic-10-84m47-900.webp)

![Applying clinic product to the hair](https://img.superchart.com/images/seongsu-hair-salon-layered-cut-clinic/seongsu-hair-salon-layered-cut-clinic-11-17mpg-900.webp)

While waiting for the nutrients to sink in under the steam machine, I enjoyed the cool drink and snacks they'd prepared, and even my fatigue melted away. 🍵

![Drinks and snacks provided while waiting under the steamer](https://img.superchart.com/images/seongsu-hair-salon-layered-cut-clinic/seongsu-hair-salon-layered-cut-clinic-12-1fzh7-900.webp)

## How did designer Terry cut the layers?

After the clinic treatment, once my hair was towel-dried, Terry began her signature layered-cut scissor work.

![Start of the layered cut](https://img.superchart.com/images/seongsu-hair-salon-layered-cut-clinic/seongsu-hair-salon-layered-cut-clinic-13-1a7cz-900.webp)

Watching her carefully consider my face shape, scalp line, and hair density, shaping the length stitch by stitch in fine detail, I could really feel the expertise.

![Shaping the length during the cut](https://img.superchart.com/images/seongsu-hair-salon-layered-cut-clinic/seongsu-hair-salon-layered-cut-clinic-14-p7bvp-808.webp)

She kept the layers from being too heavy while bringing out natural texture, and the shine from the clinic treatment combined with the layered line for an amazing synergy.

![Hair with restored shine and layered lines after the clinic treatment](https://img.superchart.com/images/seongsu-hair-salon-layered-cut-clinic/seongsu-hair-salon-layered-cut-clinic-15-18wyk-1200.webp)

Now even just shaking my hair out with a blow dryer after washing gives me hip, natural curls, like I just walked out of a salon blow-dry. ✂️

![Natural curls set after blow-drying](https://img.superchart.com/images/seongsu-hair-salon-layered-cut-clinic/seongsu-hair-salon-layered-cut-clinic-16-dwyki-900.webp)

![Side view of the finished layered cut](https://img.superchart.com/images/seongsu-hair-salon-layered-cut-clinic/seongsu-hair-salon-layered-cut-clinic-17-mjvpn-900.webp)

## How much easier is morning styling after the clinic and layered cut?

My hair used to get so frizzy after washing that I struggled every morning with a blow dryer and flat iron, but thanks to Terry's work, styling has become so much easier — my quality of life has shot way up.

With the silky, moisturized feel from the Ayunchae clinic plus the pretty layered fit, I smile every time I catch my reflection now.

![Final layered cut style after the treatment](https://img.superchart.com/images/seongsu-hair-salon-layered-cut-clinic/seongsu-hair-salon-layered-cut-clinic-18-10azi-900.webp)

If you want to lighten up a heavy hairstyle into something fresher, or if you're worried about damaged hair, I'd definitely recommend giving this place a visit. 💖

## Where it is

- Toni&Guy Seongsu (토니앤가이 성수점)
- 35 Sangwon 1-gil, 2nd & 3rd floor, Seongdong-gu, Seoul, South Korea
- 서울특별시 성동구 상원1길 35 2, 3층 토니앤가이 성수점
- 37.5466225, 127.0472677
- Google Maps: https://www.google.com/maps/search/%ED%86%A0%EB%8B%88%EC%95%A4%EA%B0%80%EC%9D%B4%20%EC%84%B1%EC%88%98%EC%A0%90/@37.5466225,127.0472677,17z

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Superchart · https://superchart.com/en/@dining-room-clock-2/seongsu-hair-salon-layered-cut-clinic/ · https://superchart.com/llms.txt