Olive Young N Seongsu is not just a drugstore — it is the undisputed cathedral of K-beauty and the single most important retail destination for foreign tourists exploring Korean cosmetics. Spanning an extraordinary five floors and 4,600 square meters inside the Factorial Seongsu building, this is the largest Olive Young store ever built, and it was designed from the ground up with international visitors in mind.
The store debuted over 150 exclusive brands that launch here before appearing anywhere else in Korea. Whether you are hunting for the latest viral sunscreen, a cult-favorite serum, or an under-the-radar indie skincare line, Olive Young N Seongsu is where trends are born. Each floor is organized by theme — from skincare essentials and color cosmetics to health supplements and lifestyle goods — making it easy to navigate even if you do not read Korean.
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Ask a localWhat truly sets this flagship apart is its suite of six professional beauty care services. The AI Skin Diagnosis station uses advanced imaging technology to analyze your skin condition and recommend products tailored to your specific concerns — and a remarkable 87 percent of users at this station are foreign tourists. Beyond AI diagnostics, you can experience a custom fragrance bar where you blend your own signature scent, a makeup touch-up zone with professional artists, and a personalized product recommendation service that pairs you with your ideal routine.
The numbers tell a compelling story about this store's appeal to international visitors. Olive Young N Seongsu consistently ranks as the number one store in the Seongsu area for foreign visitor spending, and the foreign sales ratio for Olive Young stores in the Seongsu neighborhood has surged from 40 percent to a staggering 70 percent. Tax-free shopping is available on-site, so you can claim your refund before you even leave the building.
Located just a five-minute walk from Seongsu Station (Line 2) Exit 3, the store sits in the heart of the Seongsu creative district, surrounded by trendy cafes, galleries, and brand flagships. Whether you are a serious skincare enthusiast or a casual shopper looking for affordable souvenirs, Olive Young N Seongsu delivers an experience that simply cannot be replicated at a regular convenience-store-sized branch. Plan to spend at least an hour here — most visitors find themselves staying much longer once they start exploring the exclusive product lines and interactive beauty stations.
Seongsu Station (Seoul Metro Line 2) Exit 3, then walk straight for about 5 minutes. The store is inside the Factorial Seongsu building on Yeonmujang 7-gil.
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