A member asked:

How long do positive results in a hair follicle test for methamphetamine with levels of 4000-7000 take to go to 0?

A doctor has provided 1 answer
Dr. Clarence Grim answered

Specializes in Endocrinology

Skin follicle: This will depend on which test they are using and how fast your hair grows. Discuss with your testers.

Answered 5/25/2017

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