how long nicotine stay in your saliva
How Long Does Nicotine Stay in Your System? If you smoke, traces of nicotine can be found in your hair, blood, urine, and saliva. It can be detected in your saliva for up to four days after your last cigarette and in your hair for up to a year. The best way to remove nicotine from your body is to stop using tobacco products altogether. You can help speed this process up by: drinking water