It might have been me  -I've fallen love with it, and it seems to be beneficial for my hair.

Genuine rose water consists of distilled water and maroc rose (though I've seen once a cheap version sold as "rosewater" that had only the rose scent in common with the real thing).

I mist my hair with it once or twice a day. This has helped to reduce static, seems to make my hair softer, and has a lovely scent that expels the smell of unwashed head which is great if one tries to prolong the interval between washes.

Give it a try If you don't like to use it in your hair, it can be used also for face.

I don't buy rose EO and mix it myself- I buy ready mixed product called "rose water" from a health food store. They also sell EO:s.

Aren't health food stores real treasure chests for long hair devotees?! 

Galadriel--

I saw some of the rosewater at the Sunflower market near me and thought of you, but didn't want to buy it unless I knew that is what you were talking about.  I also saw a recipe on another site to boil fresh red rose petals in distilled water and use that.  Sounded great, but it would depressing to cut up a dozen fresh roses right away, and could get expensive, especially this time of year!

I've used two brands of rosewater. One that lists as ingredients Aqua Rosa Damascena, Methyparaben and Prophylparaben and one that lists just Aqua Rosa Damascena. I haven't noticed any difference between these, except lightly different scent.

I think that if you intend to make rosewater yourself, you should also grow your roses. Rosa Damascus is the only rose species that is used for rose water- others produce too "mild" petals and are unsuitable. If I remember correctly, it is a small shrub. Commercially sold roses are often bred appearance, not scent in mind. Also, they're often sprayed with pesticides and God knows what chemicals that aren't probably good for hair.

I started using rosewater on my hair after reading the raves from Galadriel.  I have wavy hair and when its dry I use the rosewater to dampen my hair to bring the wave back 
I get my rosewater from the health food store, it's called Rose Petals Rosewater from the Heritage Products line.  This line is based on recommendations in the Edgar Cayce readings.  Nothing but water and hydroessential rose oil in this brand.

I finally got the Heritage Rose Water!! I found it at Whole Foods market!

My hair used to be frizzy. Rose water really helps, but not because there's something especially effective in it. Frizziness just means that hair is too dry.

Rose water, like any misting will add the necessary moisture quickly right to where it's needed, and that's why it works. I love the light, nice smell of rose water -it makes me remember to mist ofteen- but I know people who achieve just as good results with mixing some nice EO with water.