My daughter to traveling to Brazil. She said she needs a good mosquito repellant. Any suggestions?

I find Cutter is great repellent for when I am hiking or camping. When using it I don't get bitten whereas if I do not wear anything I am the mosquito magnet of the group.

any of them that have deet in them!

the repellant i get at my place is like weird. it acts after the mosquito sits on me. then this repellant makes it high and it keeps sucking blood indefinately in a trance. well, like that too. now i can punish that sucker myself. just a crack. actually all work fine.

Anything that works here will work there too :-)
I heard that Vitamin B is excellent to keep mosquitoes away. So she should start taking it.
There are a lot of mosquitoes in Brazil because of the climate of course. So if she is going to the South in June/July it is going to be very cold and she will not need any. If she is going to the North I think she will need it any time ;-)
I looove Brazil.