it depends on how long you've been in the sun and how susceptable your hair is to the sun. my hair always gets a few shades lighter in the summer, but I surf so I'm always in the sun. it just depends, I guess!
I have brown hair too but it lightens only a bit so it's nothing major. it would not bleach it. I've heard some people leave lemon juice in their hair and it works, but only for blonds tho. if I bleach my hair, I would just get highlights
Nope, they only thing is Sun-In and I don't even know if they make that crap anymore. Anything like that you would put on your hair though will turn it ORANGE so stay away! If you want to lighten your hair safely go see a colorist and save the money it would take to fix any damage you do to yourself at home!
I'm out in the sun quite a bit and it always get a little lighter as time goes on.
yes, if you spend a lot of time in the sun, your hair will go lighter. My hair is dark and when I went to a really hot country (it was about 20 degrees) for about 4 weeks and my hair went much lighter!