Parameter Included: 1
Parameter Included: 1








Cotinine is the major and stable metabolite of nicotine, formed in the liver after nicotine intake from smoking, vaping, or using other nicotine-containing products (like patches, gums, or lozenges). Because cotinine remains in the body longer than nicotine, it serves as a reliable biomarker for recent nicotine exposure.
This test is commonly performed on urine, blood, or saliva samples, depending on the clinical need.