100k

단발백선생 combines 단발 (bob cut), 백 (100, referencing the creator handle 100k), and 선생 (teacher or professor) — making it roughly Bob Cut Teacher 100k. The channel bio reinforces this concept with the line 'a channel with everything about the bob cut you're thinking about,' making the niche specialization clear from the start.

100k runs a hair salon called 르소피 (Le Sophie), promoted through the Instagram account @lesophi_100k. The salon specializes entirely in bob cuts and sees over 600 bob cut clients per month, which is a remarkably high volume for a single-style specialty studio.

One of 100k's videos discusses getting a bob cut for 77,000 won, giving viewers a transparent look at real Korean salon pricing. The channel regularly addresses the actual cost of a proper bob cut in Korea, which is part of its practical, advice-driven appeal.

Yes — Jung Ho-yeon's bob style (정호연머리) and perm variation (정호연펌) are topics 100k regularly tags and covers. Jung Ho-yeon became one of the most searched Korean hairstyle references globally after Squid Game, and her clean bob is a natural fit for a channel dedicated entirely to that cut.

100k posted a tutorial titled '60초안에 박규영단발 만들어보자' — roughly 'Let's make Park Gyu-young's bob in 60 seconds.' Recreating Korean celebrity bobs quickly is a recurring format on the channel, tying trending actress looks directly to practical how-to content.

Yes — the channel includes tutorials specifically on how to cut a bob yourself, including dedicated content on the back sections (뒷머리), which is typically the hardest part of a DIY bob. This self-cut instructional angle is part of what sets the channel apart from a standard salon promotional account.

Reservations for 르소피 are made through the Instagram account @lesophi_100k, where a quick booking link is available in the bio. The salon also uses a kiosk ordering system for walk-in clients on arrival, reflecting the high foot traffic that comes with over 600 monthly bob cut appointments.

Around 70% of 100k's audience is male, which is unusual for a beauty and hair channel. The channel's emphasis on precise cutting technique, step-by-step methodology, and practical information — like exact pricing and at-home cutting guides — may draw a broader, more technically curious audience than a typical cosmetics or styling channel would.

Yes — the channel is dedicated entirely to the 단발 (bob cut), covering variations like the layered bob (단발레이어드), bob perm (단발펌), and celebrity bob recreations. This hyper-specialization is the entire brand concept, and the channel bio explicitly promises 'everything about the bob cut you're thinking about.'

100k is based in South Korea, and nearly all of the channel's audience is Korean. The content is produced in Korean and targets domestic viewers searching for bob cut tutorials, salon pricing, and the latest celebrity hair trends in the local market.