The Cotinine (Urine) test is the most accurate and reliable way to determine the presence of nicotine in your system. It doesn't just check for smoking; it measures cotinine, a stable byproduct your body makes after any nicotine exposure, including cigarettes, vapes, and patches. Because cotinine remains in your system for several days, it provides a much clearer picture of your nicotine status than testing for nicotine itself. This confidential test, requiring a simple urine sample, is a standard tool for health and wellness assessments or pre-surgical screening. This test provides clear, factual, and quantitative data about your nicotine exposure.