Sweat Testing:

Expert Drug Testing, Inc. provides sweat testing as a method of monitoring drug use over extended periods of time. 

1. Sweat Testing is used for a series of days or weeks to determine drug use.
   
   
2. It can detect drug use within 1 to 2 hours of being attached to the donor.
   
   
3. It is a patch that is applied directly to the skin – similar to a nicotine patch.