Quote Originally Posted by a. beezy
A synthetic urine system called Quick Fix worked for one of my friends just the other day. It comes with a heating pad and temp sensitive bottle, and it's available in male or female.
Thats incorrect. The Quick Fix is unisex, any male or female can use it. There are no "his" or "hers" bottle of QF and with a sensible reason: Gender is not a factor when analyzing for drugs.

Quote Originally Posted by a. beezy
It says not to let it sit over 12 hrs
Again, not true. There is nothing in the instructions that say this. The QF can be stored at room temp all the way to the end of its 2 year shelf life.

All of the info and instructions can be found here: http://www.urineluck.com/products/7.html

You must be thinking of another brand of synthetic.