How long before drug use shows up in hair follicle drug test?

Blood vessels surround hair follicles underneath the scalp, so drugs in the bloodstream incorporate and bind to the hair follicles underneath the scalp.

It takes approximately 3 – 5 days for hair with drugs incorporated or bound to the hair follicles under the scalp to reach the top of the scalp to be collected. based on the average rate of head hair growth.

Head hair grows an average of 1/2-inch per month (~1.3 cm for those of you who prefer the metric system).  The standard length of hair laboratory tested about 1 1/2 inches from the root end (~ 3.9 cm) or 1/2-inch times 3; therefore, hair analysis reveals drug use for a time span of approximately 90 days (3-5 days after drug use).

Drug tests may show drug use, but many times drug use alone falls short of the proof necessary for the government to make their case if you face a Dependency, Neglect, or Abuse case or a drug crime charges.

Finding a Good Lawyer

One good way to find a lawyer is to check out their online recommendations, ask friends, acquaintances, or other lawyers and attorneys for referrals and then interview the candidates. You can call my office at 502-509-1490 to schedule a consultation to discuss your options or set an appointment here:

Let Our Experienced Team Help

If you’re facing divorce, custody, grandparent's rights, paternity, adoption, criminal charges, personal injury, or need deeds or wills prepared in or around Shepherdsville or Shelbyville or Taylorsville or Radcliff or Elizabethtown or Louisville, Kentucky, rely on our team at the Law Offices of John Schmidt & Associates. We will fight aggressively to help you protect your rights with the goal of obtaining the most favorable outcome. Schedule an appointment here:



Recent Posts