Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Scent and new soap bars

  1. Apr 27, 2010 #1
    OK, I never worried or thought on this till yesterday, and I would like an answer if someone knows.

    When you open a new brand name bar of soap, by the end of the day, the whole bathroom smells like that soap.

    Is there an enzyme applied to the outside to make it do this? Because it really only happens with a new bar, and the effect is short lived, so it seems to be washed off when you use it initially. Or is there a perfume applied to the bar to improve the sale of the item?

    Thank you for any answers.
  2. jcsd
  3. Apr 27, 2010 #2


    User Avatar
    Science Advisor

    Perfumes (if any) are evenly mixed into the soap mass of the bar, but the scents are relatively volatile chemicals.
    They'll evaporate over time - most quickly when the bar is new.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook