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Company Overview

CONFIDENCE IN DRUG TESTING.

At Redwood Toxicology Laboratory, Inc. (RTL), one of the nation's premier forensic drug testing facilities, we offer comprehensive, low-cost drug testing options. We deliver the certainty of science, the dependability of proven processes and the assurance of legally defensible results. Together with our Reditest® substance abuse screening devices, RTL offers complete drug screening solutions.

Our laboratory performs testing in accordance with strict forensic standards and scientifically accepted methods. Each drug and alcohol test is performed by a highly educated, experienced staff using state-of-the-art equipment under the scrutiny of state and federal agencies.

Whether you perform 10 or 10,000 drug tests per month, RTL will provide your agency with exceptional customer support. Our staff specializes in assisting agencies nationwide with implementing successful drug testing programs. At RTL, our customers come first.

Between our laboratory drug test services and Reditest®, our on-site diagnostic screening product line, RTL offers multiple options to detect the following drugs of abuse:

  Alcohol Methadone  
  Amphetamine Methadone Metabolite  
  Barbiturates Methamphetamine  
  Benzodiazepines Opiates  
  Buprenorphine Oxycodone  
  Cocaine Phencyclidine  
  Cotinine/Nicotine Propoxyphene  
  Marijuana Tricyclic Antidepressants  
  MDMA (Ecstasy) EtG Alcohol Metabolite  
  Synethic Cannabinoids ("synthetic pot") Designer Stimulants ("bath salts")  
  Designer anabolic steroids Essential masking & anti-estrogen agents  
  Androgenic anabolic steroids Prohormones  
  GHB (gamma
hydroxybutric acid)
Fentanyl  

Detect 600+ Prescription Brands with Comprehensive Drug Testing. Covers a wide range of illicit and licit drugs including: Antidepressants, anticonvulsants, barbiturates, benzodiazepines, opiates/narcotics, sedative/hypnotic agents, and stimulants.


Additional information is available in our printed Device and Lab Catalogs, delivered to all new clients. To download a PDF of our Catalogs, click here.

To learn more about Redwood Toxicology Laboratory call:   800-255-2159 ›› Contact us online