De Leaf, a Thai herbal skincare company, is scaling regional expansion across ASEAN (Myanmar, Laos, Indonesia, Vietnam) with its revamped Thanaka soap featuring proprietary 4D Bio-Active technology combining triple bright actives at 30x concentration. The brand continues partnerships with celebrity presenter Engfa Waraha for year two and is launching limited-edition gift sets and AI-driven multi-version campaign strategies ahead of 9.9 shopping festival, targeting the Skin Longevity trend.