What is Hair Drug Testing?
Since hair growth is fed by the bloodstream, the ingestion of drugs of abuse is revealed by analyzing a small sample of hair. Our testing method measures the drug molecules embedded inside the hairshaft, eliminating external contamination as a source of a positive test result. Hair testing results cannot be altered with shampoos or other external chemicals.
• What type of drugs can be detected in a standard hair test? • What time period does a standard test cover? • What is the shortest time period that can be accurately evaluated? • Can body hair be drug tested like hair from the head? • How much hair is needed? • How do drugs get into hair? • What is the difference in Hair Drug Testing compared to urinalysis? • Can hair be affected by cross-reacting substances such as over-the-counter medications? • How effective is hair follicle testing in detecting drug usage? • Does treatment of the hair affect test results? • What is external contamination? • How fast does head hair grow? • Can tests be run on people with little or no hair? • Can hair collected from a hairbrush be used? • What are the different domains in a hair fibre? How they can affect hair drug testing? • How soon after use can a drug be detected in hair? • Does external exposure to certain drugs like marijuana or crack smoke affect the Hair Test results? • Does hair color affec
