er where do i begin... is test, and others of its type, is a Marquis reagent, which has been used for years and years by police and forensic people to detern=mine what a substance is...
no its not a ripoff, thats just stupid...
the marquis reagent reacts with various amphetamine and other substances in very specific ways.
if, perhaps, a pill was tested and didnt give a purple/black reaction and then someone took it and said it felt like "xtc", well that only means it could be anyone of a number of drugs with somewhat smilar effects...
PMA will feel to most people like MDMA, only and experienced user could probably tell the difference. PMA gives, we think, a clear reaction.
only MDMA, MDEA, MDA and MDBD(?) give a purple black reaction. if you use a tester and it gives that result then you have one of those 4 chemicals. and the order i listed them in is from most comon to least common...