Does leijin Saizeng growth hormone aqueous solution have preservatives?

Kinsey growth hormone aqueous solution is added with bacteriostatic agent, not preservative. What is a bacteriostatic agent? Bacteriostats, as the name implies, are substances that can inhibit the growth of bacteria. Commonly used bacteriostatic agents in medicine are phenol and cresol. 1834, German chemist Runge discovered phenol in coal tar, and then British doctor Reese became famous for his special envoy phenol. He happened to find that after disinfecting surgical instruments and doctors' hands with phenol solution, the purulent infection of wounds was obviously reduced, thus saving the lives of many patients. Phenol has weak acidity, and high concentration will cause harm to human body, such as irritation to skin and mucosa and damage to liver and kidney function. Some people will say that recombinant human growth hormone injection containing phenol has been used clinically for more than 10 years, and no problems have been reported. Then you must know that Johnson & Johnson talcum powder caused cancer in the United States last year. Children's talcum powder with talcum powder as the main component was introduced in 1894, but it was not until 1960 that asbestos mixed with talcum powder with insufficient purity was found to be a carcinogen to ovarian cancer patients. Talcum powder has been on the market for 60 years. Later, it is still controversial whether talcum powder (excluding asbestos) as the main raw material will increase the risk of ovarian cancer. Until 20 19, 10, 19, Johnson & Johnson found carcinogens in the recalled 33,000 bottles of baby powder, which caused an uproar. I don't know how many children have suffered from ovarian cancer with talcum powder as the main ingredient in recent years.