Melasma is a stubborn skin disease, there are many treatment methods, but only a few of them are really effective. Patients’ pigmentation lightened some, more did not change, a few pigmentation aggravated, and it is said that more than 70% of rebound and recurrence . When people were overwhelmed by melasma, a decades-old medicine for melasma quietly emerged, which is Torsemide, chemically named tranexamic acid. When it comes to tranexamic acid, some people may have an impression that this is not the ingredient in the whitening injection that Big S said? Indeed, the main ingredient of the Big S whitening shot is this tranexamic acid, also called tranexamic acid, in addition to glutathione, VitC, creatinine and so on. As for the role of tranexamic acid in whitening injections, no one can say what it is, until the application of torsemide, then people’s attention. Torsemide is an old coagulant, mainly used for acute or chronic, limited or systemic primary hyperfibrinolysis due to various bleeding. It is a widely used hemostatic agent for secondary hyperfibrinolytic states due to disseminated intravascular coagulation. This drug was first applied to treat melasma in Japan, and tranexamic acid is available not only in clinical but also in whitening cosmetics. To treat melasma quickly, firstly, you have to take whitening injection, and then take oral torsemide, the effect is better than oral alone to be effective and the course of treatment is shorter.