how long does weed stay in your system lick test

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how long does weed stay in your system lick test

Weed (THC) can stay in your system for different lengths of time depending on the type of drug test used. For a saliva or "lick" test, THC is typically detectable for about 24 to 72 hours after use. This detection window can vary based on how often and how much you use:

  • Single-use: up to 24 hours
  • Occasional use: up to 2 days
  • Regular use: 2 to 3 days
  • Heavy use: up to 8 days in saliva

For comparison, urine tests can detect THC metabolites from a few days to over 30 days depending on frequency of use, and blood tests detect THC up to about 12 hours after use. Saliva tests detect THC mainly because it remains in the mouth and oral fluids shortly after use, making it a common method used in roadside or workplace testing, but with a relatively short detection window compared to urine and hair tests.