Hello all, I have had both types of MDPV the pure white powder and the tan colored stuff. After reading this thread I had to post. The pure white MDPV seemed to last longer than the tan, with NO euphoria ect.. The tan of course more euphoric. I have IV'd the tan but not the pure white, and I won't be able to for about three weeks. Both are nice, but now I'm wondering which is the TRUE MDPV white or tan? Also I used a urine test to see what if at all showed up unfortunately two days before I had taken mephedrone also, while MDPV usage was more frequent (used the day of the test), there was a slight line and by slight I mean barely visible 'pink line' where a 'definite red' line was suppose to define Amphetamines. I have not seen any information related to MDPV and drug screens, so anything other than my experiment would be appreciated.