Although whitening injections are currently being advertised by word of mouth, they are not yet clinically recognized for their effects and have not been approved by the FDA. Doctors at regular hospitals usually do not recommend whitening injections to patients. It is mainly a mixture of antioxidant drugs, pigment removal drugs, and intravenous infusion. Whitening injections mainly contain three ingredients: tranexamic acid, glutathione and vitamin C. If whitening injections are used improperly, such as using them for too long or in too large a dose, the corresponding side effects may occur, mainly including the following: 1. The vitamin C in whitening injections, if used inadvertently in excess, may lead to scurvy; 2. The main function of tranexamic acid is to stop bleeding, and in excess it may cause blood clots. For patients with a history of cerebrovascular disease and thrombotic disease, injection of tranexamic acid may be life-threatening; 3, if the whitening injection inadvertently enters the cerebrospinal fluid, it may cause blurred vision, headache, dizziness, fatigue and other central nervous system symptoms, and in serious cases, it may cause shock; 4, drug injections all need to be metabolized through the liver and kidneys, inappropriate injection may increase the burden on the liver and kidneys, and even cause liver and kidney function damage. 5, multiple intravenous injections of whitening injections will also increase the risk of infection. In summary, it is not recommended to choose whitening injections, try to choose the regular way whitening, which is beneficial to health.