Hair salon in Gwacheon for root straightening: One & Only Hair

In short

One & Only Hair Gwacheon Government Complex Station is a hair salon on the basement level of the Sujain building in Gwacheon. I had root straightening on the growth from six months after a volume straightening treatment, while keeping volume in my bangs. It was not as dramatic as a full perm, but my flyaways lay flatter and morning styling became easier.

Visit for root straightening at One & Only Hair

Good to know

Salon
One & Only Hair Gwacheon Government Complex Station (원앤온리헤어 과천청사역점)
Address
B05–B08, B1, Gwacheon Government Complex Station Hanyang Sujain Officetel, 15 Byeoryangsangga 1-ro, Gwacheon-si, Gyeonggi-do, South Korea
Treatment received
Root straightening focused on growth from about six months after volume straightening
Consultation
Taming curly roots and flyaways while retaining volume in the bangs
Drinks offered during visit
Coffee, juice, or chamomile

as written by the visitor on Sep 2, 2026

Why I chose root straightening instead of full straightening

About six months after my volume straightening treatment, curls began to grow back at my roots. The rest of my hair was fine, but the hair at my crown and around my face was sticking up, so I booked an appointment at One & Only Hair Gwacheon Government Complex Station (원앤온리헤어 과천청사역점).

Visit for root straightening at One & Only Hair

Unlike the sections that had previously been volume-straightened, my roots were curly and lifting upward. My crown and front sections looked especially untidy, so I decided to have root straightening focused on the new growth rather than straighten everything again.

Curly roots lifting before root straightening
Hair before treatment, untidy from newly grown curly roots

Where is the salon, and what was it like?

When I visited, it was a newly opened salon. It was on the basement level of the Gwacheon Government Complex Station Hanyang Sujain Officetel.

One & Only Hair in the Sujain building
One & Only Hair during my visit
One & Only Hair on Sujain's basement level
Interior space at One & Only Hair

The salon was neat, and music was playing, which made a good first impression. The designer looking after me gave me a warm welcome.

Neat One & Only Hair interior during my visit
Salon interior before the root-straightening consultation

How did we discuss volume in my bangs?

During the consultation, I explained in detail that I was concerned about my curly roots, flyaways, and the condition of my bangs. We decided to leave volume in my bangs, considering that they could fall flat after root straightening.

I found that laying out the parts that bothered me beforehand helped establish the direction of the treatment. If you have bangs, it may help to explain how much curl you want straightened as well as how much volume you want.

Were the shampoo and root-straightening process comfortable?

Root-straightening process at One & Only Hair
Receiving root straightening at the Gwacheon branch
Root straightening for newly grown roots
Root-straightening treatment during my visit

When a hair appointment takes a long time, I feel that comfort during the process matters too. This time, they used a moisturizing shampoo suited to my dry hair.

Hair-care step during root straightening

At every shampoo, they asked whether there was anywhere I wanted rinsed more, and they finished with acupressure, which left my scalp feeling refreshed. I never felt heat or discomfort while they applied the solution or styled my hair with heated tools.

What was provided while I waited for the treatment?

They brought me a Vogue magazine while I waited. I could choose coffee, juice, or chamomile, and I chose orange juice. When I mentioned that I had not eaten, they also brought toast and snacks.

Waiting during the root-straightening treatment
Waiting at One & Only Hair during treatment
Drink and snacks provided while waiting
Snacks and a drink provided during treatment

How did my flyaways and morning styling change afterward?

Hair neatly smoothed after root straightening
Hair after curly roots were tidied

The change may not look as dramatic as a full perm, but the difference was clear to me. The hair that had been curling at my roots was straightened and neatly arranged.

Lifted hair and flyaways tamed by root straightening
Flyaways lying flatter after root straightening

I had recently been losing a lot of hair, which meant more short flyaways and something that had been bothering me. Once my roots were smoothed, even the flyaways that had been sticking up lay flatter.

I did not have my whole head treated again, but the trouble of styling my hair each morning was greatly reduced. Because we discussed keeping volume in my bangs, they did not feel overly flattened. What satisfied me most this time was tidying up my curly roots and flyaways.

Where it is

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

B05–B08, B1, Gwacheon Government Complex Station Hanyang Sujain Officetel, 15 Byeoryangsangga 1-ro, Gwacheon-si, Gyeonggi-do, South Korea경기도 과천시 별양상가1로 15 과천청사역한양수자인오피스텔 지하1층 B05~B08호

Open in Google Maps

Local places · Hair & beauty salons