How long after 3 months of smoking marijuana can you trace marijuana in urine?

Generally the active chemical that is tested for in drug test, THC, is absorbed by fat lipids in the body. In comparison to chemicals that are water soluble , they take longer to completely exit the body.

The maximum amount of time it can take for THC to completely exit the body is generally 30 days. However, a lot of factors come into play such as the activeness and diet of the user. You can expect at the very least, it will take 2 weeks.

If trying to pass a drug test, don't fall for products that claim to cleanse your urine. THC is not water soluble and therefore not able to be excreted by drinking 'cleaners'. The only way to effectively pass a drug test is to drink a great deal of water before the test and take creatine supplements the days leading up to and the day of the drug test. The water will effectively dilute your urine to a point where any THC levels will not read high enough to cause a positive. The creatine adds color and lack of creatine is a sign of urine dilution. Otherwise you can have someone clean urinate in a cigar tube and tape that to the inner part of your thigh. The heat will keep it at body temperate, so it does not test false.

Good luck! oh and traces of any drug you take will always stay in your hair