What Products Contain Boric Acid?

Boric acid is a naturally occurring compound with the formula H3BO3. Boric acid is mined in California, Turkey, China and the Andes Mountains. It is used in insecticides, anti fungal preparations, antibacterial preparations, insulation, glass, skis, circuit boards and furniture padding.

Insecticide & Wood Preservative

Boric acid is contained in insecticides that are used to kill ants, fleas, termites, cockroaches, wood-boring insects and algae. It is also found in wood preservatives that prevent fungus growth.

Eye Wash

Some eye wash solutions contain boric acid to cleanse or irrigate the eyes. Boric acid contains mild anti-fungal and antibacterial properties that are not harmful to the eyes.

Flame Retardant

Because boric acid inhibits combustible gases from being released in a fire, it is found in gypsum board, mattresses, futons, and cellulose-based insulation.

Glass & Fiberglass

Because boric acid improves the fiberization process, it is often found in heat resistant glass. For example, boric acid is found in fiberglass.

Motor Oil

Nano-particles of boric acid, combined with motor oil, have been shown to increase the slickness of the motor oil; thereby reducing wear on engines and improving engine efficiency.


Care should be taken to avoid ingestion and inhalation of products containing boric acid. Adverse reproductive effects may occur.