Cannabis Half Life
Cannabis half-life explained: how long THC and CBD take to clear your body, what changes the timeline, and what it means for detection windows.
Cannabis is a widely consumed substance, and many are curious about how long its effects last and how long it stays detectable in the body. The half-life of cannabis, or how long it takes for half of the substance to leave the body, can vary widely.
Half-life refers to the time it takes for half of the drug or its metabolites to be eliminated from the body. This time frame can be affected by several factors.
Individual metabolism
Frequency and amount of use
Age and body mass
Body composition and hydration level
Environmental factors like food intake and smoking vs. vaping methods
Blood tests: Can detect THC for up to 12 hours
Urine tests: May show traces of THC for 1 to 7 days, up to 30 days in heavy users
Saliva tests: Typically detectable for up to 48 hours
The duration of cannabis in the body can range significantly, but with these factors considered, individuals can get a better understanding of what to expect.