Overview
Saliva drug testing detects very recent drug use through a simple mouth swab. It is non-invasive, quick, and difficult to adulterate because collection is directly observed.
Who Should Get This Test?
Employers conducting reasonable-suspicion or post-accident testing, law enforcement for roadside screening, and situations requiring detection of use within the past few hours to days.
What to Expect
A collector places a swab between your cheek and gums for a few minutes. The sample is sealed and sent to a lab. Some instant devices provide preliminary results on-site.
How to Prepare
Avoid eating, drinking, smoking, or chewing gum for at least 10 minutes before the test. No other special preparation is needed.
Common Uses
Post-accident testing, reasonable-suspicion screening, roadside testing, workplace random testing
Accuracy
High for recent use; lower sensitivity for use beyond 48-72 hours
Detection Window
Earliest Detection: 0 days post-use
Typical Detection: 1 days
Maximum Detection: 3 days
Saliva tests are best for detecting use within minutes to 48 hours. Detection windows are shorter than urine for most substances.
Limitations
Very short detection window; some substances transfer poorly to saliva; eating/drinking shortly before can affect results
Frequently Asked Questions
Cost & Pricing
The Saliva (Mouth Swab) Drug Test typically costs between $29 and $69 when ordered directly through a certified lab. Prices may vary by location.
Learn More: Visit the SAMHSA Drug Testing Information for additional details from the Substance Abuse and Mental Health Services Administration.