Beginners Guide to Vaping

Nicotine is quickly absorbed, but the byproduct, cotinine, is what tests primarily detect and lingers longer. Nicotine may clear in days, but cotinine can remain for up to 3 weeks in urine for heavy users, and 3 months in hair. Clearance time depends heavily on usage frequency, metabolism, and hydration levels. The most effective way to flush nicotine is to quit completely, drink water, and maintain a healthy diet and exercise routine.