Cotinine is a metabolite byproduct and residual element of Nicotine the primary alkaloid of Tobacco, which remains detectable in the body of individuals who consume tobacco for up to 4 days after use.
A cotinine urine test strip has a cut off level of 200 ng/ml. The accuracy rate of this test strip is in the 99% range and results can be determined in 5 minutes or less. Forensic use only.