Sanofi Group is the world's largest manufacturer of human vaccines, covering vaccines, prescription drugs, health pharmaceutical products and animal health products, covering more than 100 countries, and ranked third in the world in the medical drug market share in 2014. Lingteshi is one of Sanofi's international core brands, which was launched in 1957. The pH value of the product is about 4, the texture is light white milk, with a strong talcum powder flavor, and can rub out more foam. The mildness is average, and it belongs to the "elimination" brand health care products, which can also be used every day.