Gwacheon hair salon for layered cut repair and volume straightening: One and Only Hair

In short

One and Only Hair Gwacheon Government Complex Station Branch is a hair salon two minutes on foot from Exit 1 of Government Complex Gwacheon Station. I had my uneven layered-cut lines repaired and received volume straightening to smooth my frizz, and I was happy with the natural connection around my bangs and sides while keeping crown volume.

Volume straightening after layered-cut repair

Good to know

Salon
One and Only Hair Gwacheon Government Complex Station Branch (원앤온리헤어 과천청사역점)
Address
15 Byeolyang-sangga 1-ro, Gwacheon-si, Gyeonggi-do, B05–B08, B1, Gwacheon Government Complex Station Hanyang Sujain Officetel; 경기 과천시 별양상가1로 15 과천청사역한양수자인오피스텔 지하1층 B05~B08호
Public transit
Two minutes on foot from Exit 1 of Government Complex Gwacheon Station
Hours
According to the original notice: Mon–Fri 10:00–21:00, Sat 10:00–20:00, Sun 10:00–19:00
Parking
Parking is available on basement levels 2 and 3 of the building
Services received
Layered-cut line repair and volume straightening
Stylist service
One stylist handled the consultation, shampoo, product application, treatment, and finishing styling

as written by the visitor on Sep 7, 2026

After coloring my hair ash at level 7, I had been growing it out with only layered cuts and no other treatments. But I was unhappy with the cut I got three months earlier. My hair is fairly curly, so I was also concerned that it looked puffier as it grew longer. I wanted to tidy up both the broken-looking cut lines and the frizz, so I booked an appointment at One and Only Hair Gwacheon Government Complex Station Branch (원앤온리헤어 과천청사역점).

How do you get there from Government Complex Gwacheon Station, and is parking available?

The salon was easy to reach, just a two-minute walk from Exit 1 of Government Complex Gwacheon Station. The address is 15 Byeolyang-sangga 1-ro, B1, B05–B08, Gwacheon Government Complex Station Hanyang Sujain Officetel, Gwacheon-si, Gyeonggi-do. The Korean address is 경기 과천시 별양상가1로 15, 과천청사역한양수자인오피스텔 지하1층 B05~B08호.

One and Only Hair Gwacheon Government Complex Station Branch location

The hours listed in the original notice are 10:00–21:00 Monday through Friday, 10:00–20:00 on Saturday, and 10:00–19:00 on Sunday.

One and Only Hair Gwacheon Government Complex Station Branch hours
Hours

If you drive, you can park on basement levels 2 and 3 of the building.

One and Only Hair Gwacheon Government Complex Station Branch visit guide

What were the salon atmosphere and stylist service like?

When I walked in, I found the salon clean and comfortable.

One and Only Hair Gwacheon Government Complex Station Branch interior
One and Only Hair Gwacheon Government Complex Station Branch indoor space
One and Only Hair Gwacheon Government Complex Station Branch atmosphere
One and Only Hair Gwacheon Government Complex Station Branch salon space
One and Only Hair Gwacheon Government Complex Station Branch interior view

The salon said it uses a Cesco air-perfume system and carries out regular disinfection. I found the scent pleasant while I was there, which made the visit comfortable.

One and Only Hair Gwacheon Government Complex Station Branch care area

The thing I liked most was the one-to-one stylist responsibility system. During this visit, the salon manager personally handled everything from the initial consultation through the shampoo, product application, treatment, and finishing styling.

How did they repair the broken-looking layered-cut lines?

I had a thorough consultation with the salon manager before the treatment. My existing hair had noticeably different amounts of weight in different sections, and there was not enough mid-length hair, so the cut line looked abruptly broken. We decided to connect these sections naturally with a cut first.

Hair during layered-cut repair consultation
Repairing broken layered-cut lines

After trimming the broken line with the cut, the layers connected much more naturally.

Naturally connected layered lines after the cut

Why did I choose volume straightening instead of a C-curl perm?

I debated between a C-curl perm and volume straightening until the end. The salon manager showed me the overall look, and after seeing the naturally connected line in person, I decided on volume straightening.

How was crown volume preserved during the volume straightening?

I was worried that volume straightening would make the hair at my crown lie too flat. To preserve root volume, the salon manager applied the product around the crown while leaving about 2 cm from the roots.

Volume straightening treatment at One and Only Hair
Volume straightening after layered-cut repair
Volume straightening to smooth curly hair
Volume straightening treatment at One and Only Hair
Volume straightening on layered hair

How did the frizz and layered lines change after the treatment?

The finished hair had its unruly curls smoothed into a sleek layered style. Before the treatment, it looked puffier as it grew longer, but afterward the lines connected naturally, which I was happy with.

Layered hair before and after volume straightening
Layered cut and volume straightening before and after
Layered style before and after volume straightening
Comparison of layered lines and frizz changes

The crown volume I had worried about also looked natural. The stylist connected the hair through my bangs, so it did not feel as if the hair was sticking to my face. To my eyes, my face even looked a little smaller.

Finished layered style after volume straightening
Finished volume straightening with root volume
Finished layered hair with naturally connected lines

This time, I was happy with the result of repairing the cut lines first and then smoothing the frizz. Being able to have the same stylist handle everything from the consultation through the finishing also makes me want to visit again.

Where it is

One & Only Hair Gwacheon Government Complex Station (원앤온리헤어 과천청사역점)원앤온리헤어 과천청사역점

15 Byeolyang-sangga 1-ro, B1, B05–B08, Gwacheon Government Complex Station Hanyang Sujain Officetel, Gwacheon-si, Gyeonggi-do, South Korea; 경기 과천시 별양상가1로 15 과천청사역한양수자인오피스텔 지하1층 B05~B08호경기도 과천시 별양상가1로 15 과천청사역한양수자인오피스텔 지하1층 B05~B08호

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