Tranexamic Acid, standardized as "Tranexamic Acid" in cosmetic ingredient lists, has its skincare applications rooted in a significant medical discovery. As a classic antifibrinolytic hemostatic agent, it was observed in clinical treatments to significantly improve melasma in patients, thereby opening a new chapter in dermatology as a highly effective brightening agent. Unlike traditional brightening ingredients, tranexamic acid has become a core solution for stubborn pigmentation issues due to its multi-target, high-precision, and strong tolerance properties.