4-CL-PVP (4-Chloro-alpha-pyrrolidinovalerophenone) is a research chemical of the pyrrolidinophenone class. It is also a crystalline analog of a-PVP meaning that researchers have found this a great alternative! 4-CL-PVP produces its stimulating effects as it is a norepinephrine-dopamine reuptake inhibitor. Anecdotal reports have stated that participants had exhibited effects of high energy, improved alertness and euphoria.
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