Boric acid is a white, odorless powder that is often used as an antiseptic, insecticide, and flame retardant. It is a weak acid that can be found naturally in some fruits, vegetables, and minerals.

In medicine, boric acid is sometimes used as an antifungal and antiseptic agent. It may be applied topically to treat skin infections, wounds, and other conditions. 

Boric acid is also commonly used in household cleaning products, pesticides, and insecticides. It can be effective at killing insects such as cockroaches and ants. 

In addition, boric acid has been used in the manufacturing of glass and ceramics, as well as in some industrial processes.