What youve read was wrong. Amino acids are not tested in urine samples collected for a drug test.

It does get really cold at night and I was wondering if the urine getting cold effect it's properties in any way?
The answer to that is no. Synthetics can be frozen as well as being stored at room temp.
Burnt Toast Reviewed by Burnt Toast on . Will the temperature effect synthetic urine I got synthetic5 or whatever it is call and I leave it in my car at all times. It does get really cold at night and I was wondering if the urine getting cold effect it's properties in any way? Rating: 5