Just a thought.
The metabolite is stored in fat.

Did you do any heavy lifting the day before, or running, exercise, fasting?
Anything that causes your body to burn fat will raise the concentration in the urine.

If you have stayed clean, you might want to challenge the results.

Tell them it is simply not possible because you do not use "drugs", and ask for a retest.
That's an honest statement, it's an herb, not a drug.

Either way, best of luck.

Aloha,
Weezard
Weezard Reviewed by Weezard on . Failed my drug test (UA) but trying to understand the results...Need help! Here is my brief story with a couple of questions to follow: I was daily smoker and I understand how the levels of nanograms per milliliter (ng/ml) build up on one's body. So I stopped smoking on April 29th with my last hit the previous night around 9pm. I started taking the at home drug test from Walgreens about 3 weeks later. I failed the first one which I thought I would but assumed I was getting close to the cutoff level. I passed my first at home test on May 21st around 11am with no Rating: 5