Hello Thanks for writing to us with your health concern. Determining exactly how long meth is detectable in the body depends on many variables, including which kind drug test is being used. Methamphetamine - also known as Desoxyn, crank, crystal, glass, ice, speed - can be detected for a shorter time with some tests, but can be visible for up to three months in other tests. The timetable for detecting meth in the system is also dependent upon each individual s metabolism, body mass, age, hydration level, physical activity, health conditions and other factors, making it almost impossible to determine an exact time meth will show up on a drug test. The following is an estimated range of times, or detection windows, during which meth can be detected by various testing methods: Urine Test: 1-4 days Blood Test: 1-3 days` Saliva Test: 1-4 days Methamphetamine, like like many other drugs, can be detected with a hair follicle drug test for up to 90 days. All the best Please feel free to discuss further.