The Pitfalls of Self-Testing Urine Drug Tests: Ignoring Specific Gravity and Creatinine Levels   Introduction: Self-testing at home may n...

     What is Synthetic Urine ? The chemical makeup of human urine varies and is influenced by various factors, including an individual's...

Everything you need to know about THC Self Test  Opiate /cocaine have higher threshold, THC is lowest thus why lines are dark or light when ...