How long does nicotine stay in your body
The amount of nicotine in your blood rises just seconds after you light up. But how much you inhale and how much nicotine is in the cigarette both affect how much. People also process nicotine differently depending on their genetics.
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Generally, nicotine will leaves your blood within 1 to 3 days after you stop using tobacco, and cotinine will be gone after 1 to 10 days. Neither nicotine nor cotinine will be detectable in your urine after 3 to 4 days of stopping tobacco products.
If you smoke menthol cigarettes or breathe in secondhand menthol smoke, cotinine may stay in your urine longer.
A saliva test is considered the most sensitive way to detect cotinine, and it can detect it for up to 4 days. Hair testing is a reliable way to figure out long-term use of tobacco products and can be very accurate for as long as 1 to 3 months after you stop using tobacco. It can even detect nicotine for up to 12 months.
What Do Results Mean?
- If your levels of nicotine are moderate, it might mean you used tobacco and stopped about 2 to 3 weeks before the test.
- It’s possible for people who don’t use tobacco to test positive for a low level of nicotine if they’re exposed to tobacco smoke in their surroundings.
- If the test can’t detect any nicotine or cotinine in your system (or it can only detect very low levels), it likely means you don’t use tobacco and you haven’t breathed in smoke in your environment, or you were once a tobacco user but you’ve given up tobacco and nicotine products for several weeks.
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