The communicative power of the Internet is also the power of disinformation. Sometimes a hoax begins to do the rounds and ends up being true for the public. One of the latest is the "dangerous" lead in lipsticks that could affect your mental health.
A controversy has recently emerged in the Internet, originating in the USA, regarding the possibility that lipsticks may affect the brain and even alter a person’s intelligence quotient (IQ). The origin was a warning by the Boston Lead Poisoning Prevention Program that small traces of lead in some lipsticks could seriously affect the brain. The Food and Drug Administration (FDA) conducted an investigation of 400 lipsticks available in the market and concluded that lead content was on average 1.11 parts per million. It also studied 360 women who intensively used lipstick, implying a daily lead ingestion of 111 nanograms. But it turns out that a glass of drinking water contains about 10 000 nanograms of lead. Therefore, the hoax has failed and the rumour has been scratched. If you use lipstick, there’s no need to worry about your IQ.