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Chemical hair analysis may be considered for retrospective purposes when blood and urine are no longer expected to contain a particular contaminant, typically three months or less. Its most widely accepted use is in the fields of forensic toxicology, in pre-employment drug testing and, increasingly, in environmental toxicology.
In mainstream scientific usage, hair analysis is the chemical analysis of a hair sample. The use of hair analysis in alternative medicine as a method of investigation to assist alternative diagnosis is controversial [1] [2] and its use in this manner has been opposed repeatedly by the AMA because of its unproven status and its potential for healthcare fraud.
Hair drug testing is a method that can detect drug use over a much longer period of time than saliva, sweat or urine tests. Hair testing is also more robust with respect to tempering. Thus, hair sampling is preferred by the US military [66] and by many large corporations, which are subject to Drug-Free Workplace Act of 1988.
Certain straightening products that contain formaldehyde could be banned in the U.S. following a 2022 study showing a link to uterine cancer. FDA considering banning hair products linked to cancer ...
A proposal to ban formaldehyde in hair-straightening products that was scheduled to take place in April has not been released by the Food and Drug Administration, disregarding the agency’s own ...
May 4—PORTSMOUTH — Any cancer diagnosis can be devastating. Even the treatment can be hard. For many, one of the most emotional and difficult parts of receiving chemotherapy is the loss of hair.
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