how long does marijuana stay in mouth swab test
12-24 hours: Marijuana is detectable in the saliva test only for about 12 to 24 hrs. It can be detected in the urine much longer and up to 90 days in a hair follicle sample.
One key study found that weed can stay in a personâs urine for a surprisingly long period of time. That study found that urine will test positive for THC an average of 27 days after use. Heavy users can test positive for as long as 77 days after a smoke sesh. 1-time use will usually stay in your system for 5-8 days. If you use cannabis 2-4 times per week and then stop, youâll test positive for 11-18 days. If you smoke 5-6 times per week, itâll stay in your urine for 33-48 days.