How long does it take to get crystal meth out of your system? I have to take a drug test in two days and I'm afraid I'll test dirty.

You WILL test dirty if it's only been two days. There is no other way to test clean other than time.

Takes 3 days... try taken niacin

takes 3 days...try taken niacin

And most tests these days test for chemicals that are used to clear the urine of other drugs.