I've been wondering this for a while. Does the process of coloring/bleaching your hair mask or change drug residues in any way that might make them less detectable to a test?
stinkyattic Reviewed by stinkyattic on . Hair tests and hair color I've been wondering this for a while. Does the process of coloring/bleaching your hair mask or change drug residues in any way that might make them less detectable to a test? Rating: 5