Detection with the certainty of science and innovation

Urine and Oral Fluid options

Legally defensible and trusted test solutions

Our products, our services

Monitor drug treatment and recovery

Relevant drug tests

Make informed decisions quickly and reliably

Rapid drug screening

Demonstrated leader in designer drug testing

Synthetic drug tests

Service Alert: 02-17-2021

Due to the continued severe winter weather affecting the Memphis, TN and Mid-South regions of the country, our labs continue to experience FedEx shipment delays. We apologize for the service interruptions and want to assure you our laboratory personnel will be working diligently to minimize the delays and to get samples processed and reported as quickly as possible, once we receive our sample shipments from FedEx.

Please see the FedEx Service alert message below.

Winter Storms

February 17, 2021

Winter storms are causing hazardous conditions across the U.S. Our top priority is the safety and well-being of our team members, as well as providing the highest level of service to our customers. Although contingency plans are in place, some service delays and disruptions can be anticipated for inbound and outbound shipments across the U.S. FedEx is committed to providing service to the best of our ability in areas that can be safely accessed

Click here to download additional details on cities, states and ZIP Codes affected.

Up to date information on weather advisories can be found at the National Weather Service.

Confidence in testing.

Redwood Toxicology Laboratory is now part of Abbott. Our portfolio offers customers best-in-class point-of-care testing and diagnostic technology that delivers trustworthy and actionable information. We are committed to providing reliable, innovative and value-focused substance abuse screening products and lab services to government, criminal justice and addiction treatment marketplaces.

Laboratory Testing Services

We offer you comprehensive, cost effective drug and alcohol testing options. Our laboratory services include urine drug testing, oral fluid drug testing, prescription drug testing, EtG/EtS alcohol testing, "synthetic marijuana" drug testing, "bath salt" testing, steroid testing, and more.

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Substance Abuse
Screening Devices

Our rapid on-site screening devices, in combination with lab services, provides our clients with a comprehensive and convenient drug testing solution. Customer confidence in our products and services is our goal. Take the first step in detection with Reditest. Now you'll know.

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 Screening Devices

ToxAccess® client login

Collections and reporting have never been so easy. Quickly complete lab test request forms and improve your drug testing process.