Recently ordered some speed from a vendor on evo and had a friend run a marquis test on it earlier, he said it didn't react much. If it isn't amphetamines what exactly is the 'speed' that's being sold on the darknet markets? I realize speed can mean a bunch of different things, from straight up crystal meth to adderall.
Probably should have read the product description better. If it didn't mention you should have gone with a different vendor...