WarPrincess
New Member
Interesting (very) study from the Journal of Analytical Toxicology on the effects of chemical relaxers in hair drug testing:
Influence of Chemical Straightening on the Stability of Drugs of Abuse in Hair | Journal of Analytical Toxicology | Oxford Academic
Influence of Chemical Straightening on the Stability of Drugs of Abuse in Hair | Journal of Analytical Toxicology | Oxford Academic