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Check first, with First Check®.

First Check Diagnostics, LLC provides you with the accurate answers you are looking for to those difficult questions in the privacy of your own home. It is our goal to give you the information you need, when you need it.

We offer a full portfolio of products ranging from a marijuana home drug test to a test for prescription drug use. There are even First Check tests to answer your health-related questions, providing accurate results for cholesterol levels.

We are committed to leading the market in both home testing for drug use and home testing for other health concerns. We will continue to provide you with accurate, innovative products that you can use at home.

For more information about the First Check product line, see our products section.

For questions about our products, please call us at 1-888-788-5716. Our professional staff is available to assist you M-F 8:30 a.m.-5:00 p.m. Eastern Time, and all calls are confidential.