ISOI, the Korean skincare powerhouse behind Olive Young's #1 bestselling serum for 12 consecutive years, celebrates the viral success of its Brightening Calming Spot Serum (Trouble Trace Serum) with an interactive popup campaign featuring KickFlip idol member Gyehun at their Seongsu flagship store.
Visitors complete a three-stage mission — social media follows, word puzzles, and games — to earn stamps for a lucky draw with exciting prizes. The campaign rewards engagement at every level, making it fun even if you don't end up purchasing.
On special event days (April 9-12, April 22-25, May 7-10, May 21-25, noon to 6 PM), the first 100 Naver pre-registered visitors receive complimentary mint cotton candy. All products feature tiered discounts: 10% off for 1 item, 20% for 2, and 30% for 3 or more — stacking up to significant savings on Korea's most celebrated serum.
The flagship serum features Bulgarian Rose Otto and Rose PDRN for brightening, anti-blemish, and antioxidant care. The reformulated version adds Rose PDRN technology for enhanced skin restoration. Located on Yeonmujang 7-gil, the ISOI Seongsu store is about an 8-minute walk from Seongsu Station Exit 1 or 3, in the heart of the Seongsu beauty district.
Wondering about ISOI Trouble Trace Serum: Gyehun Project? A Korean local will look into it for you — how to get there, what to order, whether it's worth it. Free on WhatsApp.
Ask a localSeongsu Station (Line 2) Exit 1 or 3, 8-minute walk to Yeonmujang 7-gil
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