Understanding Saliva Drug Testing Saliva drug testing, also known as mouth swab testing, is a simple and effective method for detecting drug use. This type of testing is popular in workplaces, law enforcement, and healthcare settings due to its ease of use and rapid results. Here's everything you need to know about saliva drug testing. How Saliva Drug Testing Works Collect the Sample: A sample is collected using a swab or absorbent pad placed between the cheek and gum for a few minutes. This...