Frequent Users will have it show up in their urine for 2 weeks to a month. Infrequent will be around 10 days. These are just rough guesses but this rate can be highly accelerated by drinking a lot of water and green tea(antioxidants)
@cwilbur thats actually not true. THC metabolites are transferred to the hair follicles only while they’re present in the bloodstream. When you stop smoking and they leave your system they’ll no longer be incorporated into your hair.
Hair tests look at the 1.5” of your hair closest to the skin, approximately three month’s growth. After three month’s the accuracy of the test falls off sharply, which is why they test for only the most recent three months.