HealthTap Online Primary Care Doctors Accepting New Patients
Book a video visit
HealthTap
Telehealth
A member asked:

How can i find out if thc is out of my hair follicles?

A doctor has provided 1 answer
Dr. Robert Killian answered

Specializes in General Practice

Drug tests and Hair: You are poorly informed. Once the drug is in the hair it does not leave. The only way to get a clean drug sample is to not have any drug use from one hair cut to another. Unless you shave your whole body a test will remain positive for the length of your hair.

Answered 2/3/2016

5k views

Thank

Related Questions

A member asked:

Regarding hair follicle drug test, will THC be be present in hair follicles four months after quitting?

A doctor has provided 1 answer

A member asked:

How can I pass a hair follicle test fasest? Not looking for a miracle just factual ways to cleanse the THC from my hair fastest etc.

A doctor has provided 1 answer

A member asked:

To fail a hair follicle drug test does there have to be a certain number or amount of THC present or is it any amount that will fail you?

5 doctors weighed in across 2 answers

A member asked:

I'm not wondering how long THC stays in hair,,but I'm curious as why it stays in the hair follicle longer than blood or urine?

4 doctors weighed in across 4 answers

A member asked:

Does thc content build up in your hair into one spot of the follicle? Or is it a timeline, such as when you smoke it makes sort of like a tic mark?

A doctor has provided 1 answer

Sponsored Content
HealthTap Medical Group does not endorse products or services. Sponsored content revenues support our mission to make health information free and accessible to all.Learn more

People also searched for:

How long does THC stay in hair follicle?
Thc hair follicle testing how long does it stay in your system .
How much THC is detectable in a hair follicle drug test?
Scientists have discovered any solutions that will clean THC from hair follicles?
What products contain THC that could possibly make you fail a hair follicle test?

Telemedicine

Primary Care
Manage Your Conditions
Women's Health
Children's Health
Men's Health
Senior Health
Wellness, Prevention & Lifestyle
Sexual Health
Mental & Behavioral Health
Travel Medicine
Urgent Care
Ask your question
Didn't find what you're looking for?

90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.

Ask your question

More of what we treat

Allergies
Antibiotics
Asthma
High Blood Pressure
Prescriptions
Type 2 Diabetes
Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.
HealthTap
HIPAA logo
HIPAASecure
Soc 2 Type 2 logo
SOC 2 Type 2Certified
JCAHO Accredited
JCAHOAccredited
Member App

Download HealthTap

Video visit and message your doctor

Member App QR Code
Play Store Member LinkApp Store Member Link

Questions?

+1 (888) 828-0841support@healthtap.com
LinkedInTwitter
HomeTermsPrivacyCookiesDMCAHealth TopicsDoctors DirectoryDoctor Q&A by Specialty
Copyright 2026 HealthTap, Inc.