Bubble bath
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Image:Three ducks in the tub.jpg Bubble baths can be obtained by adding a product containing foaming surfactants like sodium dodecyl sulfate to water. The practice is popular, because the foam insulates the bath water, keeping it warm for longer, and also reduces the tendency of greasy buildup on the bath tub at the water level (the so-called "bath ring"). It can also keep the body of the bather from being visible to bystanders, preserving modesty.

