Sinchon salon hair botox care instead of a volume perm: Demon Hair
In short
Demon Hair Sinchon Branch is a hair salon on the second floor of the building right next to Hyundai Department Store Sinchon, near Sinchon Station in Seodaemun, Seoul. A hair test at Demon Hair showed protein-deficient hair, so the planned volume perm was postponed for One-Kill Botox Care, a recovery clinic using R07 Repair One-Kill Botox shampoo and cream finished with low-temperature magic straightening. One session at Demon Hair Sinchon Branch already left the hair visibly smoother and softer.

Good to know
- Location
- 2nd floor, Building Na, 87-4 Sinchon-ro, Seodaemun-gu, Seoul — the building right next to Hyundai Department Store Sinchon
- Treatment received
- One-Kill Botox Care (damage recovery clinic)
- Products used
- R07 Repair One-Kill Botox Shampoo, R07 Repair One-Kill Botox Cream
- Perk
- 30% off on a first visit
- Service
- Iced americano and a snack set served
as written by the visitor on Sep 23, 2026




I've been growing out my hair lately, and I decided I wanted a calm, neat look — so I set my heart on a volume perm or volume magic straightening. Excited, I headed over to 'Demon Hair,' a Sinchon hair salon with great access right next to Hyundai Department Store Sinchon.
Iced americano and snacks during the treatment at Demon Hair

Demon Hair Sinchon Branch brings out a tray with an iced americano and a snack set while you're getting your treatment. I got to enjoy watching the Sinchon street view through the window while relaxing. Thanks to the cold americano and tasty snacks to nibble on, it felt less like a salon and more like a nice café. Because of the thoughtful service, the whole care session flew by comfortably without a dull moment.
But my excitement over transforming my look didn't last long — after consulting with the designer and doing a hair test, I was shocked. Apparently, because I'd been neglecting home care, my hair was seriously lacking in protein, with zero elasticity and prone to breaking, ugh. She said using a hair straightener daily to look neat was probably the cause.
I was told that if I went ahead with the perm in this state, my hair would be completely ruined, so I sadly decided to postpone it. Instead, I was recommended the 'One-Kill Botox Care' to firmly refill my collapsed hair from the inside!
How to find Demon Hair Sinchon Branch next to Hyundai Department Store
- Convenient location: right next to Hyundai Department Store Sinchon, so it's really easy to drop by before or after other errands.
- Friendly, personalized consultation: instead of pushing a style on me, they carefully tested and diagnosed my hair condition, which really built trust. They explained clearly why I shouldn't get a perm with protein-deficient hair, and I could totally understand.



Hair test result: protein deficiency, and why One-Kill Botox Care came first


When you're growing your hair out, keeping it in healthy condition turns out to be the most important thing. The importance of refilling protein: the reason hair loses strength and breaks is because it's empty of nutrients and protein, and once that's pinpointed, the emergency treatment prescribed is exactly this One-Kill Botox Care.
This systematic care process is a premium recovery clinic that packs protein and nutrients deep into damaged hair to restore elasticity. I figured that to get a beautiful perm eventually, now was the time to lay a solid foundation.


What the R07 Repair One-Kill Botox Shampoo step does
The R07 Repair One-Kill Botox Shampoo contains aroma and peptide ingredients, and it's a large-capacity volume shampoo that supplies nutrients to damaged hair while boosting volume. You don't rinse it out right away — you have to wait about 10 minutes.

Even just one shampoo already felt a bit softer, haha.



R07 Repair One-Kill Botox Cream and low-temperature magic straightening
The R07 Repair One-Kill Botox Cream is a hair treatment cream that densely fills the inside of severely damaged hair, giving it elasticity and shine. It's a specialized product mainly used for intensive care on hair damaged by perms or dyeing, and for 'hair botox' treatments that add strength and bounce back into the hair.
After applying the cream, two hair designers worked incredibly fast — not spinning it around exactly, haha, but applying the treatment and rolling it at lightning speed. Then they used low-temperature magic straightening to help it soak in even deeper, taking care with every strand.


Is the hair healthy enough for a volume perm next time?

One session of the recovery clinic alone isn't a complete fix, and I was told I need to keep at it consistently to really see results — but I can already feel the improvement.


It was a little disappointing not to get the volume perm or volume magic I originally wanted right away, but in the long run I think it was the smart choice to save my hair. Healthy hair first: now that I've refilled my hair with plenty of protein through the One-Kill Botox Care, I'm planning to keep up with home care and come back for that pretty perm once my hair is a bit healthier.
Overall verdict: if you're struggling with damaged hair, or like me you need solid foundational care before a perm, I sincerely recommend the One-Kill Botox Care at Demon Hair Sinchon. And apparently you're also supposed to get more protein by eating it, haha.


Apparently layered cuts, dyeing, and perms are all 30% off for first-time visitors at this Sinchon Station hair salon.
Where it is
87-4 Sinchon-ro, Building B, 2nd floor, Seodaemun-gu, Seoul, South Korea서울특별시 서대문구 신촌로 87-4 나동 2층








