http://www.viceland.com/issues/v10n8/htdocs/cum.php
It doesn't really have to do with sex, but with the semen content I figured this is the appropriate forum.
I'm not sure what to make of this. I've noticed when I get cum on my hand, after a few minutes the skin starts feeling good. Then I wash it off, and the area seems smooth.
But of course, quoted from the article, - " I think that thing about cum being good for your skin is a myth straight men made up so women would suck their dicks more often."