Sinchon Station hair salon gray root dye + curl blow-dry: Demon Hair

In short

Demon Hair Sinchon Branch is a second-floor hair salon in Seodaemun, Seoul, a 1-minute walk from Exit 1 of Sinchon Station. The writer had a root dye with scalp-safe care on roots with a lot of gray hair at Demon Hair Sinchon Branch, then a curl blow-dry with a layered-cut feel before an appointment. The gray was covered evenly with no patches and blended naturally into the earlier dye color, making it a very satisfying visit.

Finished curl blow-dry with a layered-cut feel

Good to know

Getting there
Sinchon Station Exit 1 · 1-min walk (store listing, Oct 6, 2026)
Location
2F, Na-dong, 87-4 Sinchon-ro, Seodaemun-gu, Seoul; 1-minute walk from Sinchon Station Exit 1
Services received
Root dye + scalp-safe care, finished with a curl blow-dry
Payment
Zero Pay and Naver Pay accepted
Perks
First-visit discount and membership benefits
Amenities
Phone chargers, lockers for bags, and free candy, snacks and drinks
Partnership
A sign says it is an L'Oréal Group partner salon

as written by the visitor on Jun 4, 2026

My root dye was due, so I went looking for a good hair place near Sinchon Station and booked Demon Hair Sinchon Branch (데몬헤어 신촌점), known as a top spot for layered cuts in Sinchon!

First photo from the visit to Demon Hair Sinchon Branch
Demon Hair Sinchon Branch near Sinchon Station

Where Demon Hair Sinchon Branch is and how to get there

Demon Hair Sinchon Branch is a 1-minute walk from Sinchon Station Exit 1, so access is really the best. It's almost right in front of you when you come out of the station, so even I, with my terrible sense of direction, found it without getting lost haha

The way to Demon Hair Sinchon Branch from Sinchon Station Exit 1
Building entrance of Demon Hair Sinchon Branch

The salon is on the second floor of the building.

Demon Hair Sinchon Branch salon on the second floor
Entrance to the second-floor Demon Hair Sinchon Branch salon

Atmosphere and facilities at Demon Hair Sinchon Branch

With its floor-to-ceiling windows, the salon felt super bright and open. Upbeat songs were playing as background music, which somehow lifted my mood too lol

Bright interior of Demon Hair Sinchon Branch with floor-to-ceiling windows

The counter has a sign saying, "This salon is a partnership salon of L'Oréal Group, the world's largest cosmetics company." With a title like that, I felt more confident about the product quality and skills, and reassured!

Counter with the L'Oréal partnership sign

The first-visit discount and membership benefits are pretty good. I thought getting a membership would be a much better deal price-wise haha

First-visit discount and membership info at Demon Hair Sinchon Branch
Payment and snack area at the Demon Hair Sinchon Branch counter

You can pay with Zero Pay or Naver Pay, so you can go with just your phone and no wallet, which I liked! There's also cute candy set out for when your mouth gets bored, perfect for popping one in haha

There are phone chargers too, so no battery worries! Your battery drains fast at a salon, so this kind of thoughtful touch gets a thumbs up~

While I sat and waited a moment, a staff member kindly brought me snacks and something to drink.

The locker key I got after leaving my things! It had a cute whale keyring, so I snapped a photo right away lol

Locker key with a whale keyring

When I was shown to my seat, the mirror also had membership info stuck on it. Perfect for reading about the benefits while getting your hair done~

Membership info posted on the mirror

Heavily gray roots: the consultation at Demon Hair Sinchon Branch

At Demon Hair Sinchon Branch, I sat down and they checked my root condition first haha. So much black hair had grown in.. I'm supposed to dye regularly but kept putting it off because it's a hassle, so it was in pretty serious shape lol

Roots with grown-out black hair before root dye
Checking the condition of the roots before treatment

After talking with the head stylist, we decided to do root dye and scalp-safe care together. Before the actual treatment, they pre-treated with an ampoule! It felt cool and like my scalp was being protected~ They explained that this ampoule isn't only for pre-treatment but also goes into the dye itself!

They also told me that doing protein care along with dyeing makes both perms and dye turn out pretty~!

Scalp-protecting ampoule pre-treatment
Scalp pre-treatment before dyeing

Root dye applied by two stylists, one on each side

For the root dye, two designers applied it together from both sides, so it was very fast. I have a lot of gray hair for my age, and the head stylist looked at every corner and applied it very carefully haha. While the dye was on, they kept checking whether anything was uncomfortable, and I really appreciated the attention!

Two designers applying root dye together

Natural shampoo and protein mask care

After applying the dye and letting it sit for a while, I moved to the shampoo room. The shampoo was so gentle, and having someone else wash your hair always feels great haha

They used a natural shampoo, and the scent wasn't harsh at all; it felt really mild on the scalp!!

After shampooing, they did a protein mask. They said it contains micropeptides that absorb quickly into the hair. They explained this ingredient closes the hair's cuticle layer, which helps the color last longer and makes the shine more vivid. It really felt like my hair was packed full of nutrition~

Protein mask care after shampoo

Curl blow-dry before meeting friends, finished with a layered-cut feel

Back at my seat, they finally started drying my hair~ I could tell as soon as they shook out the excess water. The color came out so well!! It blended perfectly with my previous hair color, right?!

Two people dried my hair too, so it finished much faster than usual.

Two people drying the hair together

When I said I had plans afterward, they did the blow-dry with extra care haha. They added curls with the trendy layered-cut style feel ♥

Finished curl blow-dry with a layered-cut feel
Root-dyed hair finished with a curl blow-dry

Root dye result: color under indoor lights and in natural light

The color under the indoor fluorescent light! So pretty! There's no patchiness at all, and the gray is completely covered. Thanks to the scalp-safe care I got along with it, my hair is also so soft that I keep touching it lol

Root dye color seen under indoor lighting

Depending on the light it can look a bit darker, which gives it a subtle charm. Even better~

Dye color that looks darker depending on the light

Once I stepped outside Demon Hair Sinchon Branch, the hair color and curls in natural light were so pretty too haha. Thanks to the head stylist's touch, my face tone looked much brighter and neater, and I was super satisfied! With my hair set so nicely, I went to my meetup in a great mood and even got compliments haha

Root-dyed hair color and curls in natural light

If you're thinking about a layered cut or root dye in Sinchon, I really recommend trying Demon Hair Sinchon Branch!!

Where it is

Demon Hair Sinchon Branch데몬헤어 신촌점

2F, Na-dong, 87-4 Sinchon-ro, Seodaemun-gu, Seoul, South Korea서울특별시 서대문구 신촌로 87-4 나동 2층

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