Save my hair? Options

[lulumoo]

Alright. So I recently just got a hair cut (sidebangs & layers, with the bottom-most layer ending about an inch down my back and the top-most layer equal to about my shoulders). I thought it looked okay until when brushing my hair, I looked in the mirror today and saw that, from a side-view, it is really very poofy. Kind of surprised since (I'm Asian), and my hair is almost always pin-straight. I figure it was probably the layers, since my hair isn't very thin and possibly doesn't handle the volume well?

So anyway, the sideview, starting from the top of my head down to the longest piece of hair, is basically like the slope of a mountain, and it just looks really...disgusting.

Any suggestions on how to turn it back to the usual straight-Asian-version? I'm considering maybe buying a flat-iron/straightener (is there a difference?), but I'm not really sure that'll fix the problem. If it'd work, any brands you like in particular?

Tell me if the situation isn't clear, and needs a picture. (:

[transcendentalis...]

what's your budget on a hair straightener?

iuse redken heat serum or something like that.. a lot of salons have mini travel-sized products, so you can buy a couple of those and experiment. if you can splurge, kerastase anything.

various ones worth trying --- matrix smoothing system, paul mitchell sleek and shine, john freida frizz ease serum, bedhead control freak serum

they're all pretty good.

*edit - redken smooth down heat glide is what i use. it's pretty thick for a serum.