According to the Daily Mail, a chemical related to the development of cancer cells are thought to be in the millions of Colgate Total toothpaste tube that the American people are using every day.
Report on said, Colgate manufacturer confirmed chemical triclosan, which they use to prevent diseases of the gums, is safe by the type of toothpaste Colgate Total has been food and pharmaceutical Agency (FDA) certified in 1997.
However, the toxic material by the FDA use to Colgate Total certification was only announced earlier this year after a freedom of information act in 2013. This document shows, the FDA has relied on scientific research backed by the manufacturer to give the certification results.
According to the report , the FDA said on page 35 in length to the initial concerns that triclosan can, increase the risk of cancer, but Colgate asserted, this chemical is only cause problems if used in large doses.
However, the evidence available at the time, as well as in the newer study, shows that there are real concerns about triclosan, including causing premature and underdeveloped bones in animals.
"Document published recently, along with new research about triclosan, aroused the question about whether the FDA has considered when validating Colgate Total 17 years ago", the scientists identified with the Bloomberg News Agency.
In 2010, a student has detected triclosan-chemicals are often used to reduce the bacterial infection-reducing fertility in mice. A study done in 2013, triclosan reduces the ability to produce sperm in the mice.
Another study in 2003 have detected triclosan in urine of 75% of 2517, including children, were sampled by the Center for disease control and prevention (CDCP).
Despite the above evidence, Colgate still said that the research results are not relevant, because the new studies only done on animals.
"We've established a system where we tested the chemicals on humans", scientist Thomas Zoeller of Colgate told Bloomberg. "I like the idea all along. But when there are studies on animals showed otherwise, I think we accept big risks ".
However, Colgate said, reports said on page 35 is not proven to be harmful to humans and triclosan are confirmed, the safety of this chemical has been proven to be safe by more than 80 clinical studies on 19000 people.
"Colgate Total has been present on the market in the us near 18 years, which does not yet have any signs indicating safety problems," Colgate spokesman Thomas DiPiazza said.
Mr DiPiazza said, adding that, even though the FDA has been concerned about the risk of causing cancer of triclosan, but a study in the shows, the chemical causes no risk of cancer for people.
Colgate claims there are no plans to change the formula of Colgate Total toothpaste.
On the website of the FDA, the Agency said, triclosan "not yet known" about the potential danger to humans, but the results of research on animals is the reason for the FDA to perform the test again.
The FDA said it is reviewing again the nature and dangers of triclosan, but will only review the certification for Colgate Total if there is sufficient reason to do so.
In a move that suggests the concerns about triclosan, the law of the us state of Minnesota may this year banned the chemicals. The Avon and Johnson Johnson & has also announced plans to kind of triclosan out of its products.
In 2010, the European Union (EU) has banned triclosan in materials in contact with food.=