How Long Does Cannabis Stay in Your Hair?

Cannabis in Hair: How Long Does It Stay Detectable?

How Long Does Cannabis Stay in Your Hair?

Cannabis residues can be detected in hair up to 90 days after the last use. The length of detection depends on the amount and frequency of cannabis use.

Does a Hair Drug Test Show How Long You Used Cannabis?

Factors Influencing Detection Time

Amount of Cannabis Used: Higher doses of cannabis can lead to longer detection times.
Frequency of Use: Regular users may have detectable cannabis residues for extended periods.
Individual Factors: Age, hair type, and overall health can also affect detection times.

Methods of Detection

Cannabis in hair is typically detected using gas chromatography-mass spectrometry (GC-MS). This method is highly accurate and can detect trace amounts of THC and its metabolites.

How Long Do Cannabis Metabolites Stay in Hair? Detection Times Explained

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