Why did your hair follicle test not show you take amphetamines or metabolets while i have been iftaking Concerta every day for 1 yr?

Answer 1

Hair follicle tests detect drug use by analyzing substances incorporated into hair as it grows. If your hair test did not show amphetamines or their metabolites, it could be due to several factors, including the timing of the test, individual metabolism, or the concentration of the drug in your system. Additionally, hair growth rates and the length of the hair sample tested can affect the results. It's also possible that the test was not sensitive enough to detect lower levels of the drug.