Manipulation of THC Hair Concentrations by Commercially Available Products Posted on November 18, 2022 By sdargoltz Markus Bertges, Alexandra Ketikidou, Ralf Weiskirchen, Josef van Helden, Rudolf Boehnke, Cornelius Hess Metabolites; 12(10); 2022 Access article Cannabis and Cannabinoids, Chemistry, Crime Scene Investigation and Reconstruction, DREs / Traffic Safety Resource Prosecutors, Seized Drugs/Controlled Substances, Sexual Assault / SANE, Toxicology