The Beauty of Joseon Calming Barrier Serum: Green Tea-HA + Panthenol is a lightweight, water-based serum designed to instantly soothe skin irritation, target redness, and rebuild a compromised skin barrier. This formula is an upgraded, renewed version of the brand's cult-favorite Calming Serum. It integrates traditional Korean herbal medicine (hanbang) with modern liposome technology to deeply hydrate reactive or stressed skin without any heavy or sticky residue.