"Medicated soap" containing antimicrobial and bactericidal ingredients may be harmful rather than profitable

ByJasper Nance

Medicated soap has antibacterial / bactericidal action "Triclosan"Triclocarban"Chemical substances are used. Although hand washing has penetrated as an important habit of preventing disease, hand washing with medicated soap increases the risk of infectious disease, proliferation of resistant bacteria, pollution of the environment and the like, which is rather bad effect Several research results have been announced. In Europe, the ban on sales of triclosan-containing products has also begun, and Ars Technica summarizes the situation that the American medicinal soap market may completely disappear.

Mounting data suggest antibacterial soaps do more harm than good | Ars Technica
http://arstechnica.com/science/2016/04/mounting-data-suggest-antibacterial-soaps-do-more-harm-than-good/

◆ Safety of triclosan
Triclosan contained in medicinal soap etc. is an antibacterial / bactericidal ingredient used in many commercial products, but in recent years, research to point out the danger possessed by triclosan is beginning to be reported. The use of medicated soap increases the risk of infection ·Intestinal flora(Chinenkei soya) change · The growth of resistant bacteria · Environmental pollution may increase.

Dr. Patrick McNamara at the market university is also one of Triclosan's researchers. According to McNamara, in order to obtain the sterilizing effect of triclosan-containing soap, it takes a long time to wash hands over several minutes, and many people do not say "hand washing for a few seconds" is insufficient. Although it is accepted that doctor's hand washing for several minutes before surgery is effective, "In the hand washing in 30 seconds, there is no big difference whether using normal soap or medicated soap" Reporting has also been reported. Because there is a possibility that it will be more harmful than the profit, review of the use of triclosan is required.

American Food and Drug Administration(FDA) stipulated triclosan as a "safe substance", but recently it received research reports and is moving to reconfirm the safety of triclosan. The FDA is asking each manufacturer for data indicating that the sterilization effect by using medicated soap is healthier than normal soap. Whether or not submitted data will pass the FDA's standards is unknown, but the FDA is planning to announce the findings of Triclosan in September 2016. If the use of triclosan is banned, each manufacturer may abandon its annual revenue of $ 5.5 billion (about 600 billion yen).

ByLucille Pine

What is the adverse effect of triclosan
Besides soap, it is triclosan used in various products such as body soap, shampoo, toothpaste, toothpaste, cosmetics, household detergent, etc. It has the property of easily penetrating into the body via oral and skin. Triclosan is staying in urine, blood, runny nose and breast milk of people, and in the survey of the University of Michigan, triclosan has been discovered from 37 people (41%) of 90 people. In studies using rats, it was found that when exposed to triclosan, it was weak against invasion of staphylococci. Because triclosan tends to adhere to proteins, it becomes a "sticker" that invades staphylococci, which in turn leads to the risk of infection.

ZebrafishAccording to Oregon State University who studied the influence of triclosan intestinal bacterial flora using Triclosan, the antibacterial effect of triclosan showed a dramatic change in the intestinal environment of zebrafish. Since triclosan is contained in breast milk, we also know that triclosan moves from the mother into the body of the child. In the study of the University of Tennessee at Knoxville, we also know that triclosan affects the intestinal flora of both mothers and children. The microbiological change of intestinal bacterial flora may make resistance to existing antibiotics possible, and the University of Tennessee Knoxville will continue to follow up.

While numerous adverse effects of triclosan on living organisms have been reported, Dr. McNamara at the market university pointed out, "Triclosan discharged from urine reaches the sewage treatment plant through a water distribution pipe." Triclosan flowed into the sewage treatment plant messed up the microorganism system in the sewage system, causing the sewage treatment capacity to decline. Triclosan changes the genes of microorganisms called "mexB" contained in sewage because mexB has the function of eliminating triclosan and antibiotics. Also, it is known that "Triclocarban" used for medicated soap next to triclosan also causes similar changes in microbial community.

Dr. McNamara said, "Super microorganisms produced by triclosan etc. will leak out from the sewage treatment plant to the environment, potentially wild animals and possibly dangerous human beings around in circulation" It is. It is unknown whether the FDA will ban antibacterial ingredients such as triclosan, but Dr. McNamara believes consumer choice to stop using Triclosan product will be the most powerful measure. Dr. McNamara states, "Even without using unnecessary chemicals, we can maintain hygiene with normal soap and ethanol disinfectant solution."

ByK Schneider