Cocaine in Hair Testing – Limitations 

Hair testing is subject to several limitations and reported pitfalls in detecting drug abuse due to a number of factors1 including variability in hair growth rates,2 incorporation from external contamination,3 variations in individual incorporation, and hair binding.4 In response to these considerations, including the inability to distinguish environmental contamination, lack of standardized methodology, (most predominantly …

Cocaine in Hair Testing – Limitations  Read More »