At Home Cotinine Urine Test

Key Aspects of An at-home cotinine urine test:

Method: A simple dip-strip or cassette method where a urine sample is collected and tested, providing results in about 5 minutes.

What it Detects: It measures cotinine, not nicotine itself. Cotinine is a superior marker because it remains in the body for several days, whereas nicotine leaves in hours.

Detection Window: It generally detects cotinine for up to 3–4 days, though some tests can pick it up for up to 7 days, allowing detection of smoking, vaping, chewing tobacco, patches, and gum.

Uses: Ideal for checking on smoking cessation progress, for workplace screening, or for parents monitoring teens.

Cut-off Levels: Kits usually have a threshold (often 100 ng/mL or 200 ng/mL) to determine a positive or negative result.

Accuracy: These kits are reliable, often offering over 99% accuracy compared to lab methods (GC/MS), according to product descriptions on Amazon.com.

Limitations: While highly accurate, they are not a substitute for clinical laboratory testing.

Internal procedural controls are not included in the test. A colored band appearing in the control region (C) is considered an internal positive procedural control, confirming sufficient specimen volume and correct procedural technique.
External controls are not supplied with this kit. It is recommended that positive and negative controls be tested as a good laboratory practice to confirm the test procedure and to verify proper test performance.

Each test consists of a reagent strip . The amount of each antigen and/or antibody coated on the strip is less than 0.001 mg for antigen conjugates and goat anti-mouse IgG antibodies, and less than 0.0015 mg for antibody components. The control zone of each test contains goat anti-mouse IgG antibody. The test zone of each test contains drug-bovine protein antigen conjugate, and the conjugate pad of each test contains monoclonal anti-drug antibody and mouse antibody-colored particle complex.