How to order laboratory service

Reliable drug testing solutions

Which laboratory service or product is right for me?

Whether you perform 10 or 10,000 drug tests per month, RTL will provide your agency with a drug testing program ideal for you. Confused about Urine Drug Testing vs. Oral Fluid Drug Testing? Do you require the Standard 6 panel test configuration or something more comprehensive? Do you need confirmations or is on-site screening sufficient? We will set up your account according to your specific needs. Call us toll-free at (800) 255-2159.

How can I order laboratory confirmation services?

To order the Redwood Toxicology Laboratory Services, call RTL toll-free at (800) 255-2159. A sales associate will assist you in placing your order.

What is included in my supplies?

Every on-site test device comes with a collection container. A confirmation box is also included with every order in the event of a positive to be confirmed by our laboratory.

How can I order the Reditest® on-site screening devices?

To order the Reditest On-Site Oral screening devices, call RTL toll-free at (877) 444-0049. A sales associate will assist you in placing your order.

How much does RTL's testing services and on-site screening devices cost?

For information about laboratory pricing, contact the RTL sales staff toll-free at (800) 255-2159. Tested on state of the art equipment, our affordable lab based test allows for accurate and reliable results.

For information about Reditest® on-site screening device pricing, contact us toll-free at (877) 444-0049.

Check in with us on a regular basis as we continully have monthly specials for both lab services and/or on-site screening devices. Don't forget to ask us about volume pricing.

How will RTL report my laboratory confirmation results?

RTL offers lab based reporting by internet (, U.S. mail or facsimile. Please indicate your preferred method at the time of account set-up.

Who do I call to re-order testing supplies?

To reorder supplies, please call us toll free at (800) 255-2159.

Contact Us

Laboratory: 800-255-2159

Products: 877-444-0049