I never thought of that...I could use my 12 year old daughters urine?

Now what would I tell her???
bettybb Reviewed by bettybb on . mixing synthetic and real Hey there Folks, Is it possible to mix synthetic pre-mixed urien and real urien and not get bizzar or positive results from the lab or testing authority? I'm a male and am thinking of using my 7-YO daughters urien. Any problems with my plan? Again many many thanks! Rating: 5