Marijuana is known to stay in a person’s system for an extended period of time. But how long does it actually stay in your hair and nails?
In this blog post, we’ll explore that question in depth. We’ll also discuss what factors influence how long marijuana stays in your system. So, if you’re curious about marijuana metabolites and how they impact you, read on!
How Does Marijuana Work in the Body?
Marijuana works in the body by binding to cannabinoid receptors. These receptors are found throughout the body, but they’re mostly concentrated in the brain and central nervous system.
Marijuana binds to these receptors and alters their function. This can lead to changes in mood, perception, and behavior. It can also impact various bodily functions, like heart rate and blood pressure.
What Are THC Metabolites?
THC is the main psychoactive compound in marijuana. It’s what gives users the “high” feeling associated with marijuana use.
When you smoke or ingest marijuana, THC enters your bloodstream and begins to bind to cannabinoid receptors throughout your body. But THC isn’t just active in your body for a few minutes and then gone. The effects of THC can last for hours or even days.
THC is metabolized by your liver and then excreted in your urine and feces. But some of the THC metabolites can remain in your body for weeks or even months.
These THC metabolites are what drug tests look for when they’re trying to detect marijuana use. And they’re why you can still test positive for marijuana even if you haven’t used it in weeks or months.

How Long Does Marijuana Stay In Your Hair?
Marijuana can stay in your hair for up to three months. This is because hair follicles absorb THC, the active ingredient in marijuana, from the bloodstream.
The amount of time that marijuana stays in your hair will depend on how often you use it. If you use it frequently, it will stay in your hair for a longer period of time.
How Long Does Marijuana Stay In Your Nails?
Marijuana can also be detected in your nails. It can take up to six months for marijuana to completely leave your nails.
Like hair, nails absorb THC from the bloodstream. So, if you use marijuana frequently, it will stay in your nails for a longer period of time.

How Long Does Marijuana Stay In Your Hair and Nails FAQ
Can a hair test detect one-time use?
It is possible for a hair test to detect one-time use. However, it is more likely that a hair test will detect chronic or heavy use.
Does marijuana stay in hair forever?
It is possible for marijuana to stay in your hair indefinitely. However, it is more likely that it will only stay in your hair for a few months.
Can a hair follicle test go back 12 months?
A hair follicle test might return positive for up to a year if the hair grows slowly. However, it is more likely that it will only detect usage within the previous three months.
Closing on How Long Does Marijuana Stay In Your Hair and Nails
Marijuana can stay in your system for weeks or even months. This is because THC, the active ingredient in marijuana, is metabolized by your liver and remains in your body for weeks or even months. These THC metabolites are what drug tests look for when they’re trying to detect marijuana use.
Marijuana can also be detected in your hair and nails. It can take up to three months for marijuana to completely leave your nails, and it is common for marijuana to stay in your hair for up to three months.