+22 How Long Does Cocaine Stay In The Hair Ideas. Urine tests a hair follicle drug test is one way to screen for recreational drug use or prescription drug abuse. Web hair testing methods can detect crack cocaine use for up to three months, or 90 days, after use on average.

Because of the expense of conducting hair follicle tests, this method of detection is rare. Cocaine may be present in your hair up to 90 days after taking it. Web how long does it stay in your system?