Eli5: Why do some smells like fuel oil or garlic stay on hands for hours even after extensive scrubbing and washing?
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Fuel and garlic can mix with the oils in your skin. The skin on your hands is pretty thick so fuel for example might soak pretty deeply in. Scrubbing may only remove the very outer layer of dead skin, leaving some of the smell still embedded . In my experience it takes at least a day for some things to either evaporate or wear away from my hands.
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