Whitening injection is a cosmetic way to achieve a whole body whitening effect by injecting to quickly break down melanin and yellow pigment in the human body, repair damaged skin cells, replenish activated whitening factors and renew skin whitening factor cells. Although whitening injections can whiten human skin for a short period of time, there are still side effects associated with long-term use. One of the main ingredients of whitening injections is transaminic acid, which has the risk of causing menstrual bleeding. The use of whitening injections may cause allergic reactions in a small number of people with special allergies to injected vitamins. In addition, long-term injections of whitening injections may cause liver and kidney damage. No whitening injections have been approved for clinical treatment in China, so beauty seekers should choose carefully when undergoing relevant cosmetic treatments. In addition, to avoid the occurrence of adverse reactions and to make the whitening effect more lasting, you should also strengthen the care after the injection of whitening injections, the specific measures are as follows: 1, the skin may be dry after the injection of whitening injections, it is necessary not only to do a good job of hydration, but also to prepare a moisturizing body lotion to prevent the skin from flaking because of dryness; 2, within a week after the injection of whitening injections, do not use skin care products containing fruit acids, salicylic acid, alcohol, high concentrations of vitamin C; 3, strengthen the prevention of skin care products. 3, strengthen sun protection, try not to go out when the sun is strong, if you need to go out, it is best to wear long pants, bare skin coated with sunscreen and umbrella; 4, eat more food containing vitamin C, vitamin C has the function of strengthening the body’s immunity, inhibit melanin formation, etc., foods with high vitamin C content are kiwi, grapes, tomatoes, cucumbers, etc.