Great Gums Pop-up

Amazon-hit American oral care brand Great Gums lands at Lotte Department Store Main Branch near Myeongdong from May 1 to 14, 2026. The 8th-floor small-appliance pop-up zone showcases bioelectric sonic toothbrushes, a pet-only micro-current toothbrush, oral care toothpaste, and skin-cleansing devices. Tourists can test the products in person, compare specs in English, and shop tax-free in one of Seoul's most central department-store hubs.