Do at home hair relaxers keep hair straight even if it get wet, like in the shower?

my hair isnt rough its just curly and frizzy


i have a lot of hair so its hard to straighten with the flat iron


i want straight hair without havein to straighten everydayDo at home hair relaxers keep hair straight even if it get wet, like in the shower?
research on this http://en.wikipedia.org/wiki/Japanese_hair_straightening





(this isn't spam like most of yahoo aha)