Hongdae hair salon for gray root coloring that hides red tones: Andoff

In short

Andoff Hongdae is a hair salon in Mapo, Seoul, about a 5-minute walk from Exit 1 of Hongik Univ. Station. The visit, booked in advance, was a root touch-up color to cover grown-out gray hair and reddish tones, with scalp protector, ear caps, a heat lamp, about 35 minutes of processing, a shampoo and a tidy-up trim. The gray root coloring at Andoff Hongdae blended naturally into the existing hair and was a satisfying result.

White-toned interior of Andoff Hongdae with good natural light

Good to know

Getting there
Hongik Univ. Station Exit 1 · 6-min walk (store listing, Oct 13, 2026)
Service
Gray root touch-up color (red tone coverage) + light trim
Hours
Daily 11:00–20:00
Location
1F, 32-15 Donggyo-ro 23-gil, Mapo-gu, Seoul; about a 5-minute walk from Exit 1 of Hongik Univ. Station
Payment
Prepaid packages available; Zero Pay and Seoul Pay accepted
Promotion
First-visit promotion running (posted at the shop entrance)
Processing time
About 35 minutes of processing
Amenities
Waiting areas outside and inside, storage cabinets for bags, head spa room

as written by the visitor on Jun 28, 2026

What did I do today? It was time for a root touch-up, so I went to Andoff Hongdae, a hair salon in Hongdae ^^ It's a 5-minute walk from Exit 1 of Hongik Univ. Station, so let me start the introduction ~~haha

First photo from a visit to Andoff Hongdae hair salon in Hongdae
The way to Andoff Hongdae near Exit 1 of Hongik Univ. Station

How do you get to Andoff Hongdae from Hongik Univ. Station?

Andoff Hongdae is about a 5-minute walk from Exit 1 of Hongik Univ. Station, in the alley behind the 7-Eleven convenience store. Come out of Exit 1 and go straight toward the CGV alley, then cross at the crosswalk in front of the Thenewall building (across from Uahage), turn right and keep going straight. Turn into the alley by the building with Kkanbu Chicken (you'll see Boseung Hoegwan across the road) and keep walking until you reach the 7-Eleven!

When you see the 7-Eleven, put it behind you and walk a little way down the alley that leads out from there, and you'll find Andoff Hongdae hair salon~

Exterior of Andoff Hongdae in the alley behind the 7-Eleven

I liked that the hair service menu and prices are posted before you go in~ They also have a first-visit event going on, so good good!

Hair service menu and prices posted at the entrance of Andoff Hongdae

There's a waiting area outside too, haha

Outdoor waiting area at Andoff Hongdae

Andoff Hongdae opening hours and payment methods

Andoff Hongdae is open daily from 11:00 to 20:00. It runs on a prepaid membership system, and Zero Pay and Seoul Pay are accepted too.

Entrance and business information of Andoff Hongdae

The street address is 1F, 32-15 Donggyo-ro 23-gil, Mapo-gu, Seoul, and the lot-number address is 203-52 Donggyo-dong, Mapo-gu, Seoul. The counter was right there as soon as I walked in, and the owner-stylist greeted me kindly haha

Counter by the entrance of Andoff Hongdae

Andoff Hongdae runs on prepaid memberships, so if you plan to go for a long time, I recommend getting one~!

Prepaid membership information at Andoff Hongdae

I also liked that you can pay with Zero Pay and Seoul Pay ^^

Full view of the white-toned interior of Andoff Hongdae
White-toned interior of Andoff Hongdae with good natural light

What is the atmosphere inside Andoff Hongdae like?

The inside of Andoff Hongdae has a white-toned interior and lots of natural light, so it feels like a café. I took some photos of the interior, and the white tone is so clean and pretty~ It felt like being in a café haha The light is so good that it was a really pretty hair salon in Hongdae~

Perm area at Andoff Hongdae

The perm area is nicely done too~ The shop is spacious and comfortable, which I liked haha

Cabinets for storing clothes and bags at Andoff Hongdae

You can store your coat and bags in a cabinet, which was nice~

Indoor waiting area at Andoff Hongdae

There's a space for waiting too, good good!! But I booked ahead, so I went straight into dyeing without any wait~

Hair with grown-out gray roots before the root dye

How does the gray hair root dye process go?

The root dye at Andoff Hongdae went in this order: color consultation → scalp protector → ear caps → root application → heat lamp to help absorption → about 35 minutes of processing → test, then shampoo. This is my hair before the root dye~! My gray had grown out a lot and there were strong reddish tones, so we decided to cover the red as much as possible ^^

Spraying scalp protector before dyeing

Before the actual dyeing, the stylist sprayed scalp protector on carefully ^^

Ear caps put on to keep dye off the skin

She put ear caps on me too, to keep the dye off as much as possible~

Applying dye to the roots

After we talked through the color I wanted, she slapped the dye onto my roots hehe She was super quick and applied it carefully~

Root dye being applied
Heat lamp helping the gray hair absorb the dye

Gray hair is coarse and stubborn, so she placed a heat lamp over it to help the dye soak in!! Maybe the dye they use is a good one, because it had no smell and didn't sting ^^

Tea and snack prepared while the dye processes

I let it process naturally for about 35 minutes, and during that time they prepared tea and a snack for me ^^ It was an afternoon when my blood sugar was dropping, so I really enjoyed it~

Head spa space with massage chair at Andoff Hongdae

There's a head spa space too, and I wanted to try it~! You get a massage from head to toe on a massage chair, so I think it would be so nice

Shampoo room at Andoff Hongdae

I only came for dyeing today, so after the stylist tested whether the dye had taken well, I went to the shampoo room~! The shampoo there was really refreshing, so I was very satisfied!

Before and after comparison of the gray hair root dye

Before and after results of the gray hair root dye at Andoff Hongdae

After the gray hair root dye at Andoff Hongdae, the gray was covered perfectly and blended naturally into my existing hair. Here's the before vs after photo haha The gray coverage is perfect and it connects so naturally with my existing hair, with no mismatch at all, so I'm super satisfied !_!

She tidied up my hair too, and it was neat and clean, good good~!

Finished hair after the root dye and tidy-up

I had my gray root dye done by the head stylist and owner of Andoff Hongdae~ Careful work and a friendly consultation made it a root dye in Hongdae I was happy with ^^

Where it is

Andoff Hongdae앤오프 홍대점

1F, 32-15 Donggyo-ro 23-gil, Mapo-gu, Seoul, South Korea (서울특별시 마포구 동교로23길 32-15 1층)서울특별시 마포구 동교로23길 32-15 1층

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