Wangsimni hair salon one-tone color over patchy roots: Salon de L

In short

Salon de L is a hair salon on the 2nd floor of Tenzhill Mall on Majang-ro in Seongdong, Seoul, near Wangsimni Station and Sinseoldong Station. After monthly root touch-ups left the writer's long hair blotchy with 4 different shades, Salon de L redid it in one even all-over tone with Milbon dye and added thinning, a cut and chunky wave styling, all in about 2 hours. The clean, streak-free one-tone color and much lighter hair made the visit to Salon de L a complete success.

Main photo of an all-over color visit to Salon de L, a hair salon near Wangsimni Station

Good to know

Getting there
Sinseol-dong Station Exit 10 · 13-min walk (store listing, Oct 2, 2026)
Address
Unit 115, 2nd floor, Tenzhill Mall, 137 Majang-ro, Seongdong-gu, Seoul
Getting there
756 m from Sinseoldong Station Exit 10, on the 2nd floor of Tenzhill Mall
Parking
Free in the Tenzhill Mall underground parking lot
Hours
Daily 10:00–19:00 (per Naver listing)
Amenities
Scalp clinic, Wi-Fi, pets allowed, parking
Treatment received
One-tone all-over color (Milbon products) + thinning and cut + wave styling
Time taken
About 2 hours from cut to all-over color
Booking
Available through Naver Booking

as written by the visitor on Jul 24, 2026

Main photo of an all-over color visit to Salon de L, a hair salon near Wangsimni Station

Today I visited Salon de L, a hair salon near Wangsimni Station, for an all-over color. I heard it's also a shop where you can use the high oil price relief support fund.

Salon de L on the 2nd floor of Tenzhill Mall

Where is Salon de L, and how is the parking?

Salon de L is at 137 Majang-ro, Seongdong-gu, Seoul, on the 2nd floor (Unit 115) of Tenzhill Mall. It's 756 m from Exit 10 of Sinseoldong Station, and you just head up to the 2nd floor of Tenzhill Mall. I came by subway, but if you drive, you can park in the Tenzhill Mall underground lot for free.

The way to Salon de L inside Tenzhill Mall
Around the entrance of Salon de L

Salon de L opening hours and amenities

According to its Naver listing, Salon de L, the hair salon near Wangsimni Station, opens at 10:00 and closes at 19:00 every day.

Screenshot of Salon de L opening hours from Naver
  • Hours: daily 10:00–19:00
  • Scalp clinic, Wi-Fi, pet-friendly, parking available
Spacious, tidy interior of Salon de L
Modern-style treatment area at Salon de L
Seating inside Salon de L

Inside Salon de L

The inside of Salon de L is spacious and very tidy. It's a clean shop with a modern interior, and the friendly staff greet you warmly. A very good morning indeed.

It opens at 10 a.m., and some people were already getting treatments. What a hardworking salon! I had booked 10:00 through Naver, so I could get started right away.

Before the treatment begins at Salon de L

My stylist today was the head designer (siljangnim). Friendly and fun, she's the best!! She was quick with her hands and incredibly thorough too.

Long hair before treatment, patchy from repeated root touch-ups

Can one-tone all-over color fix patchy root touch-ups?

I've been getting my roots done once a month, but somewhere along the way the shades came out slightly different and my hair got patchy. I wanted Salon de L to tidy up the mismatched parts into one clean tone.

When the designer looked at my hair, she said I have a lot of hair and the ends were quite damaged, so she thinned it out and gave it a cut too. It's summer, hot, and my hair felt heavy, so it's so much lighter now. When hair is heavy it just droops down, you know?

Salon de L works on a one-to-one principle where the same person handles consultation, design, treatment and styling, so I trust it. They have loads of regulars, so it's easiest to book ahead and come.

Orange juice and nurungji cookie served at Salon de L

They gave me a drink too, and since it was 10 a.m., I picked orange juice. The nurungji cookie (scorched-rice cookie) was tasty as well, yum yum^^

Choosing a Milbon dye color for one-tone all-over color

What products does Salon de L use for all-over color?

I picked a color to make one tone, and I liked that Salon de L dyes with Milbon products. With Milbon, there's usually less itching, you know? They use premium products here.

They apply a scalp protector before starting. The expert's opinion was that my hair looked like 4 different colors, and she said she'd get it as close to one tone as possible.

Applying dye to long hair during all-over coloring
Careful strand-by-strand all-over coloring

My hair is long, so the coloring took quite a while. She did it carefully, strand by strand.

Dyed hair wrapped and left to process naturally

30 minutes of natural processing, no steamer

They wrap your hair and set a timer. I waited 30 minutes naturally, without a steamer. She came 2 minutes early to test whether the color had taken, then we went to the shampoo area.

Shampoo stations at Salon de L
Getting a shampoo after coloring at Salon de L

Shampoo and scalp massage

Salon de L has 2 shampoo stations, so it's comfortable to use. They rinse out the dye thoroughly and then shampoo. My stuffy-feeling head felt so refreshed.

The scalp massage was so good that my headache vanished completely. The shampoo felt wonderfully refreshing. A place to heal!

Drying the hair after shampoo
Styling hair into chunky waves
Wave styling after all-over color

How long does it take from cut to all-over color?

From the cut to the all-over color at Salon de L took about 2 hours, and it wasn't boring, which I liked. After the shampoo they dried my hair well, and when I mentioned I had a lunch appointment, they curled it into pretty chunky waves, so I was all ready to head out.

Back view of long hair after one-tone all-over color and cut
Finished hair evened out in one tone
Lighter finished wave style after thinning

How did the one-tone all-over color turn out?

The color came out as a clean single tone, and I'm so happy with it. With the cut too, my hair feels so light I could fly away. They thinned it a lot. And it still looks like a lot? Haha, that's because I just have so much hair.

I recommend getting your hair done at Salon de L, the hair salon near Wangsimni Station, with products that cause little damage. The all-over color came out so clean that my mood is up, up, up. Have a happy day today too^^

Where it is

Salon de L살롱드엘

137 Majang-ro, Seongdong-gu, Seoul, South Korea (Tenzhill Mall, 2nd floor, Unit 115)서울특별시 성동구 마장로 137 텐즈힐몰2층 115호

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Local places · Hair & beauty salons