A dated check of permanent beauty hubs, August promotions and recently ended pop-ups in Seongsu—so visitors do not travel for an event that is already closed.
Open now: permanent beauty hubs
Olive Young N Seongsu is a permanent five-floor innovation store at 13 Yeonmujang 7-gil. VisitKorea lists daily hours of 10:00–22:00. Olive Young also opened Beauty Mansion Seongsu on June 30, 2026 as a more specialised experience store with device and dermocosmetic consultation areas.
Musinsa Megastore Seongsu opened in April 2026. Musinsa says its second-floor beauty store covers about 146 pyeong and carries roughly 500 beauty brands. These permanent venues are safer anchors than a one-week pop-up.
Time-limited information verified for August
Musinsa's official August notice states that a beauty promotion runs at Megastore Seongsu from August 10 to 24, 2026, including a 20% discount for eligible beauty purchases over KRW 70,000, capped at KRW 15,000. Conditions and stock can change, so verify the same-day notice in store.
A Bioré zone inside Olive Young N Seongsu's Beauty Guard House was reported to run only through August 11. It is included here as an ended event, not a current recommendation.
Why pop-up lists become stale quickly
Many Seongsu pop-ups publish detailed entry rules only one or two weeks before opening. Some use advance booking, while others accept a same-day queue that can close early. A venue address without an operating date is not enough evidence that an event is open.
Before visiting, confirm three items on the brand or venue's official account: the final operating date, today's admission method and the last-entry time. Recheck on the morning of the visit.
A reliable visit order
Start with one permanent anchor such as Olive Young N Seongsu or Musinsa Megastore, then add only pop-ups verified that morning. This avoids building the day around expired promotional posts. Allow extra time on weekends because walk-in queues and product gifts may close before the venue itself.
For product research, photograph the shelf label and record the exact set size. Pop-up gifts and limited bundles are not reliable reference prices for the standard product.
What was checked
Dates, prices, product labels and locations are tied to the sources listed below. Retail claims are identified as claims; they are not presented as independent clinical or laboratory findings.