I play college football and I have to run my 40 for the pro scouts on April 22nd. I want to use clen if I can to shave some time off my 40 yard dash. I need to know if I take clen, how long after i stop taking it does it completely leave your system just in case I have to take a piss test b/c I probably will. I don't want to mess things up here. Please let me know. Thanks
Billyk
Billyk

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