你给的第一个连接里没有说花水是怎么来的，我找了另外一个：
http://www.amazon.com/exec/obidos/ASIN/B0002YFSLU/ref=pd_ecc_rvi_f/002-5578727-6714410
Product Description
This water is an infusion of rose petals. It can be used for cooking and laundry. It will bring rose flower taste to your waffles, pancakes, and pastry. In a spray bottle it will perfume all your towels and napkins. Ideal for babies... It relaxes them... And it smells so good...
Ingredients
ROSE - DISTILLED WATER
Infusion of rose petals的话我觉得只是玫瑰浸泡的水，不是精油提取中的副产物。
有空你可以去看看猪猪的在哪里买精油的精华贴，买花水精油什么的网站都在那里总结了。