How long does THC stay in your system?

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THC is fat-soluble, which makes it the long-stayer among common drugs: it stores in body fat and releases slowly, so detection windows stretch with use. NIDA's drug testing guidance and standard toxicology give the typical windows: urine - the usual workplace test - about 3 days for a single use, 5 to 7 days for regular use a few times a week, and 30 days or more for daily heavy use, with some long-term users testing positive past a month. Blood catches 1 to 2 days, sometimes longer in heavy users. Saliva 1 to 3 days. Hair up to 90 days.

Individual factors shift these: body fat percentage, metabolism, dose, and product potency - today's concentrates deliver far more THC than flower. Dilution tricks and detox drinks are unreliable and labs check for them; nothing credible speeds fat-stored THC out except time.

Two extra stakes worth knowing: driving - THC impairs reaction time for hours after use, and some states treat any blood level as impaired. And employment - a positive test weeks after quitting is real for daily users, so plan quit dates around test dates accordingly.

Pymander is a free AI doctor, 24/7 by text. Describe your use pattern and the test timing, and it can help you estimate your window.

How long does THC stay in your system?

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