How long will evidence of drug abuse remain in a person’s system, and what variables affect results?
Duration times vary according to an individual’s metabolism, physical condition, frequency of usage, and hydration. However, for the average person, the following durations are considered reasonable. The “rule of thumb” for most drugs available on the street is 2-3 days. Marijuana can be detected for 8-12 days in a moderate user (3 times per week) and 21-30 days in a daily user. Testing for usage of alcohol and/or tobacco should be done as soon as possible. The window of detection for marijuana is limited to 12 hours using saliva-based test kits, so testing should usually take place on Saturday or Sunday mornings. The biggest advantage of our hair testing services is that it can detect drug use during the previous 2-3 months. This is a very helpful option for parents who highly suspect their child has been using and want the peace of mind of knowing that months rather than days or weeks have gone by since drugs were last used ( if ever). The advantages of saliva and urine based tests b
