Quote Originally Posted by LimeCush
Dont they take the temp and all that stuff!?I would just take niacin
Niacin has never worked that I have known of personally, and you will find countless posts here on these forums to testify to that.

The only surefire way to make sure you will pass is to use the sub method. You will be giving them clean urine, and there is no way to fail unless you mess up the temp.

With about two or three mock runs before you go to the test, you should have ironed out exactly how to hold the bottle in your hiding place, and how to get the temp to where it needs to be, as well as the procedure to make sure they dont hear you using the bottle.