Our e-liquid has been extensively testing using our state of the art GCMS machine.  GCMS stands for gas chromatography–mass spectrometry, a sophisticated analytical method for analyzing compounds present in a given sample.  GCMS machines are commonly used in forensic science as well as at airport security check points and are known for their extreme accuracy in detecting even trace elements in a given sample.  Our GCMS machine gives us detailed data on all of our ingredients, creating a unique picture of each sample, much like a finger print.  We use this data to ensure we know exactly what is in our e-liquids.  We also use our GCMS to perform ongoing testing for diacetyl, pentanedione and other diacetyl analogues.  In addition, we test for DEG in our vegetable glycerin and are constantly expanding our testing protocols.