Hair Analysis

What Affects the Test

Factors that can interfere with your test and the accuracy of the results include:

• The area of the body from which the hair sample was taken.
• Your age.
• Your hair color.
• Your race.
• The rate of your hair growth.
• Your use of hair products, such as hair colors and sprays.
• External environmental factors, such as where you live and work.

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Author:	Jeannette Curtis	Last Updated: May 9, 2008
Medical Review:	Kathleen Romito, MD - Family Medicine R. Steven Tharratt, MD, MPVM, FACP, FCCP - Pulmonology, Critical Care, Medical Toxicology
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