[FOUNDUE × Seo In-guk] Online-exclusive sales to start May 26 at 9:00 PM

WAK Inc. announced that it will launch online-exclusive sales for "FOUNDUE FACIAL TREATMENT MASK," a key product of its new skincare brand "FOUNDUE -The foundation your skin deserves-," featuring Korean actor and artist Seo In-guk as the official model, starting on May 26, 2026, at 9:00 PM.

This launch is tied to the event "FOUNDUE : THE FIRST FOUNDATION," scheduled for July 9, 2026, at SGC Hall Ariake in Tokyo, and includes special sweepstakes for online customers and limited-edition packaging.

Online-Exclusive Sweepstakes Customers purchasing the mask pack will be entered into a drawing for: - Costume worn by Seo In-guk during the photoshoot (1 winner) - Life-size panel of Seo In-guk (3 winners) - Hand-signed A2 poster (60 winners)

Customer-Exclusive Perks - Limited-edition photo card (different design from standard retail version) - Sign and special message printed on the mask pack box - Sign design on the mask pack itself (messages are randomized)

About the Product "FOUNDUE FACIAL TREATMENT MASK" focuses on the skin's "foundation." It is formulated with niacinamide, glutathione, vitamin C derivatives, hyaluronic acid, and botanical extracts to promote firm, radiant, and translucent skin.

Sales Information - Sales Start: May 26, 2026, at 9:00 PM - Sales Channel: WAK+ ONLINE STORE (https://www.wakplus.com/event/seoinguk/) *Free membership registration required.