Triclosan is a bactericidal agent that has long been used in a number of hygiene products – soaps, toothpaste, deodorants and cosmetics.
According to a study published in the magazine “The Journal of Antimicrobial Chemotherapy”, antibacterial soaps based on triclosan are no more effective than regular soaps.
A group of scientists from the University of Korea in Seoul led by Dr. Min-Suk Rhee studied what kind of effect triclosan has on bacteria, an antiseptic that is most used in antibacterial soaps.
Scientists have tested the ingredient in two ways: on 20 strains of bacteria (such as E. coli, salmonella, staphylococcus aureus…), and on the other side on 16 adults. They compared the effectiveness of regular and antibacterial soaps in removing germs from the hands.
They exposed the bacteria on triclosan for 20 seconds in 22°C (room temperature) and at a warmer temperature, creating such conditions of hand washing in normal life. For the testing they used 0.3 percent concentrate triclosan, which is the maximum amount permitted in the European Union, Canada, Australia, China and Japan.
The effects of triclosan has been disputed earlier
Volunteers who participated in the study washed their hands with antibacterial and regular soap and it was determined that there is no significant difference in “bactericidal effect” in regular or antibacterial soap.
“Millions of consumers in the US use antibacterial soaps for washing hands or body, spending almost a billion dollars a year,” the researchers said.
They also recall that a significant number of manufacturers, because of the controversy about the dangers of triclosan, pulled the means from their products. Only 13 of the 53 antibacterial soaps in Korea, in 2014 contained triclosan.
In the US, the health authorities have decided to further study the safety of the ingredient, after studied that linked triclosan with cases of resistance to antibiotics and cases of hormonal disorders, so its use could significantly limit.