How Long Does THC Stay in Your System?

Whether you’re preparing for a test or simply curious about how your body processes THC, understanding how long it can remain in your system helps you make informed choices. The truth is: there’s no single answer. How long THC lingers depends on your metabolism, body composition, frequency of use, and the kind of test being used.

How Your Body Processes THC

THC (tetrahydrocannabinol) is a fat-soluble compound, meaning it dissolves in and binds to lipids. After use, your body metabolizes THC primarily in the liver, breaking it down into compounds called metabolites. These metabolites are stored in adipose (fat) tissue and gradually released back into the bloodstream over time.

Because THC distributes into fatty and highly vascular tissues — including muscle and, to a lesser extent, brain tissue — it can take days or even weeks before your body clears all traces.

Product Type Makes a Difference

How you consume cannabis can influence how long THC remains detectable in your system:

• • Flower (Inhalation): When inhaled, THC enters the bloodstream quickly, producing near-instant effects. Levels drop within hours, but metabolites can remain in fat tissue for several days, depending on frequency of use.
    
    
  • Edibles: Edibles are processed through the liver, converting THC into 11-hydroxy-THC, a longer-lasting compound. Because of this extra metabolic step, detection windows for edibles can extend several days longer than for inhalation.
    
    
  • Concentrates: Potent forms like oils, waxes, and shatter deliver higher THC doses per session, leading to more metabolite buildup and longer detection times, especially with regular use.
    
    
  • Topicals: Most standard topical creams or balms don’t enter the bloodstream in measurable amounts and are unlikely to cause a positive test. However, transdermal patches or products designed for absorption may deliver detectable THC levels.
    

Detection Times by Test Type

While the exact window varies from person to person, here’s a general guideline based on current research:

• • Urine Test: up to 3 days for occasional use; 5–10 days for moderate use; up to 30 days (or longer) for heavy, frequent use
  • Blood Test: detectable for 1–7 days depending on usage and metabolism
  • Saliva Test: typically 1–3 days
  • Hair Test: can show exposure up to 90 days
    

These are estimates — detection can vary based on sensitivity of the test and individual differences.

What Affects THC Retention

• • Frequency of Use: Regular use increases storage in fat tissue.
  • Metabolism: A faster metabolism helps clear THC more efficiently.
  • Body Composition: Higher body-fat percentages can extend detection time.
  • Hydration & Diet: Water intake and fibre-rich foods support natural detox processes.
  • Exercise: Regular movement can promote healthy metabolism and circulation.
    

Supporting Natural Detox

THC leaves the body gradually through natural metabolic processes. You can support this by:

• • Staying hydrated
  • Eating a balanced, nutrient-dense diet
  • Exercising regularly
  • Getting adequate rest

Level up your knowledge. Understanding how THC moves through your system is the first step toward making informed, confident choices.