keratin treatment???

[#1]

My hair is in between straight and wavy...i want it to be as straight as it can be though...would a keratin treatment do the trick? what products should i use? what else can i do ?

[#2]

My hair is pretty straight but has gotten what I call a weird sort of wave to it as I've gotten older.  I've had a keratin treatment twice on my hair & I love it!  It doesn't make your hair straighter, but it does take out the sort of frizzy kinks that I would get when it was humid or damp out.  I can blow dry it and it is completely straight and will stay straight no matter the weather, including wind.  I guess the best way to say it is that it has given me more control over how my hair looks. I could definitely tell a difference when it started to wear off.  HTH

[#3]

I did a keratherapy treatment in October and to be honest did not see any results. But my hair is medium thick and has a natural wave in it. I have had straightening treatments in the past from various salons usually about $40 and those worked better though those were relaxers and much stronger.