Borates have an excellent record for safety when used as directed. Boron compounds have low acute toxicity - meaning ingesting small amounts is not likely to cause health problems. Laboratory studies show large doses of boron compounds can cause reproductive and developmental effects in animals. However, similar effects have not been observed in humans. In short, there are no uses of borates - including mining and refining them - that pose any risk to human health.

When ingested, boron is readily absorbed into the blood stream by both humans and animals. However, 90 to 100 percent is excreted rapidly through urination. Boron is not metabolized by animals nor by humans. Boron compounds are poorly absorbed through intact skin in both humans and animals, although they can be absorbed through damaged skin. Boric acid and other boron compounds are approved for use in low concentrations in cosmetics and talc in the United States and Europe. Data also indicate that inhaling boron compounds does not pose a significant risk to animals or humans.

Information on Borate Health and Safety Effects