Black dye fixes patchy hair tone at Demon Hair Sinchon, Seoul salon

In short

Demon Hair Sinchon Branch is a hair salon in Seodaemun, Seoul, about a minute's walk from Sinchon Station. After a consultation with designer Yerim, patchy, unevenly faded hair from repeated dye jobs was evened out with a solid black dye, plus a 30% first-visit discount. A solid choice for anyone wanting a clean, uniform tone rather than a flashy color.

Hair after the black dye treatment

Good to know

Location
87-4 Sinchon-ro, B dong 2F, Seodaemun-gu, Seoul (about 1 minute from Sinchon Station)
Service
Black hair dye
Designer
Yerim
Discount
30% off for first-time visitors

as written by the visitor on Sep 7, 2026

Hair after the black dye treatment

Patchy hair color, fixed with black

My hair color had been looking really messy lately, so I finally went to get it dyed after a long while. Because I'd dyed it so many times before, the color had faded unevenly in places and looked patchy overall — every time I looked in the mirror it bothered me. This time I wanted something clean and uniform rather than a flashy color, so I went to Demon Hair Sinchon Branch, a hair salon in Sinchon, Seoul.

Walking route to Demon Hair Sinchon Branch near Sinchon Station

How close is it to Sinchon Station?

It's close to Sinchon Station, so it was easy to find, and being almost exactly 1 minute away made it really convenient to get to by public transport.

Exterior of the building where Demon Hair Sinchon Branch is located
Salon entrance with 2nd floor signage

Just head up to the 2nd floor of the building!!

Interior of Demon Hair Sinchon Branch on the 2nd floor
Salon chair and mirror station
Atmosphere inside Demon Hair Sinchon Branch

I went in this time set on getting a black dye job. Covering everything in black looks clean, but it can be a hassle later if you want to switch to another color — so I wanted a thorough consultation from the start.

Salon waiting area before the dye consultation
Interior design of the salon
Salon seat set up ready for the treatment

Consultation with designer Yerim

That day I had the service done by designer Yerim at Demon Hair Sinchon Branch. When I arrived at the shop, I first showed her my current hair condition and got a consultation on what kind of look I wanted. I liked that she didn't just jump straight into the color I wanted — she checked my hair's condition first and we talked it through together.

Hair condition before dyeing
Lightened hair color before the black dye

Hair condition before the treatment

Before! I hadn't dyed it brown separately, but my hair had gotten a lot lighter. My biggest concern was really that my existing hair color was patchy — looking at it before the dye job, the color at the top and bottom was slightly different, so it definitely needed sorting out.

Patchy hair with uneven color at the top and bottom

What I wanted this time wasn't an overly artificial-looking black, but a clean black that evened out the color overall.

Black dye being applied during the treatment
Letting the color soak in...

She checked in with me throughout the dyeing process to make sure I was comfortable, so it was an easy experience. Since it had been a while since I'd last dyed my hair, I was personally a bit nervous, but the whole atmosphere was relaxed.

Salon scene during the dyeing process

What changed after the black dye

When the dye job was finished and I looked in the mirror, the difference was clear. The thing I liked most was that my patchy, uneven hair color had been cleanly evened out! Before, the spots where the color had faded stood out, especially when my hair was tied up or under bright lighting — but after the black dye, the overall color became uniform and looked much more tidy.

Result of the black dye with an even color tone

Changing just your hair color really does change your whole impression. I especially liked that black makes your hair look put-together even without special styling. My hair also looked much cleaner overall once the color was evened out.

Neatly finished hair after the black dye

30% off for first-time visitors

Another thing I was happy about with this visit was the first-visit discount! First-time customers get 30% off, so you can get your hair dyed at a much more affordable price. Dyeing your hair at a salon can end up costing more than expected depending on hair length and treatment type, so this felt like great value.

Looking for a hair salon in Sinchon?

If you're looking for an accessible hair salon in Sinchon, Seoul, or scouting out a new place to try for the first time, it's worth checking out discounts like this before visiting. I was personally searching for a Sinchon hair salon and ended up getting black dye done at Demon Hair Sinchon Branch, and in the end my patchy hair color was cleanly sorted out — a satisfying visit. Designer Yerim gave me a friendly consultation before the treatment, which made it easy to explain the style I wanted and mention the parts that had been bothering me. Close to Sinchon Station for easy access, and with 30% off as a first-time visitor, it was low-pressure too. Demon Hair Sinchon Branch — highly recommend it!

Where it is

Demon Hair Sinchon Branch데몬헤어 신촌점

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

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