- Decrease water's surface tension
- Bind to dirt, oil and bacteria
- The antibacterial components of soaps (usually triclosan or, less commonly, triclocarbon) need to be left on a surface for about two minutes in order to work. Most people are not this patient, and end up washing off the soap before the antibacterial ingredients can do their job.
- Some scientists theorize that bacteria may develop a resistance to bactericidal agents over time.
- Some bacteria actually benefit us. The normal population of bacteria on our bodies not only eats our sweat, but also helps defend us against truly harmful, invasive bacteria.
- Many common diseases are viral in nature, anyway, and are therefore not prevented by antibacterial products.
According to the Centers for Disease Control and Prevention (CDC), antibacterial soaps are not necessary, but washing your hands thoroughly with ordinary soap and warm water is one of the most effective ways to ward off infection.
health.howstuffworks - Beauty & Hygiene
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