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Can Hair From a Brush Be Used for a Drug Test?

The hair from a brush cannot be used for a drug test. You must collect at least 1.5 centimeters of hair from the head in order for it to be utilized in the test. You must also avoid using fake hair extensions, as the test may produce inaccurate findings.

A hair follicle drug test can disclose a history of drug usage. As hair develops, the medication is absorbed into the follicles. As a result, its detection window is larger. Up to 90 days after the last exposure, the hair sample can reveal drug use.

Frequently, hair samples are utilized in drug tests. However, they are anonymous and cannot be associated with a specific person. As a result, they cannot be defended legally. Additionally, prior to confirmation testing, hair samples must be cleaned. The sample of hair is tested for the presence of the parent drug and its metabolite. Since the metabolite is only created in the human body, it does not pose a threat to the environment.

The detection times of hair samples are longer than those of urine samples. It is possible to detect hair for up to 90 days, which is longer than urine. The hair sample can also reveal drug use patterns. The hair sample must be gathered without using a comb or brush.

The sample of hair must be obtained at least half an inch from the hair’s root. Any hair above half an inch in length is eliminated. A half-inch of hair is sufficient to offer a 90-day history. However, cutting the hair short is not advised.

If the hair samples are obtained from an external source, they may contain hair from another individual. This could lead to unclear results and sample contamination. If this occurs, it is impossible to determine the owner of the hair. Consequently, hair samples from external sources are frequently rejected.


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