Anonymous wrote:Some people say that keeping product in your hair (ie. hair spray, or gel) acts as a repellant for lice. Do you think this is true?
No, I do not.
Anything that is not toxic to humans is not going to be toxic to lice. I don't believe for a second that they are repelled by rosemary, for example.
You have to remember that lice evolved right along with humans.
http://www.livescience.com/41028-lice-reveal-clues-to-human-evolution.html Lice are very, very good at what they do. And they are so prolific that even if something you do kills 99% of them, that 1% is perfectly capable of starting the whole cycle all over again.
I can see that some products could make it harder for a louse to hold onto hair. But "harder" does not equal impossible. And we've been using mousse, gel, hair spray, hair dye, etc. etc. for a while now, and yet, we still have lice.