benzocaine numbing use
1. Ultraviolet absorber. Mainly used in sunscreen and tanning cosmetics, it is chemically stable to light and air, safe to the skin, and has the ability to form a film on the skin. It can effectively absorb ultraviolet rays in the U.V.B area of 280-320μm medium wave light. The addition amount is usually about 4%.
2. Local anesthetics, used to relieve itching and pain on wounds, ulcers and hemorrhoids, with a concentration of 5% to 20%. It is also used as an intermediate for drug synthesis and organic synthesis.