Vaping THC, a method of consuming cannabis, has gained popularity in recent years. Many individuals turn to vaping for its discreteness and perceived health benefits compared to traditional smoking. However, one crucial concern for users is how long THC, the psychoactive compound in cannabis, remains detectable in their system.

Factors Affecting THC Detection

Dosage and Frequency of Use

The amount and frequency of THC consumed play a significant role in detection times. Higher doses and more frequent use can lead to longer detection windows.

Metabolism and Body Fat Percentage

Metabolism varies from person to person, affecting how quickly the body processes and eliminates THC. Additionally, individuals with higher body fat percentages may retain THC for a longer duration.

Method of Consumption

Different consumption methods, such as vaping, edibles, or smoking, can influence how THC is absorbed and metabolized by the body.

Individual Differences

Each person’s physiology is unique. Factors like genetics and overall health can impact how long THC stays in their system.

The Importance of Context

It’s essential to note that individual factors play a significant role. Things like metabolism, hydration levels, and exercise routines can all influence how quickly the body processes and eliminates THC.

Moreover, legal and workplace policies regarding cannabis use can vary widely. Some employers may have strict drug testing policies, while others may not conduct tests at all.


The Reddit discussions on how long vape THC stays in the system offer a valuable glimpse into the real-world experiences of cannabis users. However, it’s crucial to remember that these are personal anecdotes and not professional medical advice. For specific concerns or legal implications, it’s always advisable to seek guidance from healthcare professionals or legal experts.


Q5: How long is THC detectable in saliva after vaping?
A5: According to Reddit users, THC can typically be detected in saliva for up to 24-72 hours after vaping.

Q6: What individual factors can influence how long THC stays in the system?
A6: Individual metabolism rates, body fat percentages, genetics, overall health, hydration levels, and exercise routines can all impact how quickly the body processes and eliminates THC.