lil over excessive with the b12 info.... but dude chill all u gotta do is drink a shit ton of water only and sit in a sauna and sweat it out.. in no sauna arround next best step goto hot attic.. no hot attic go into shower room and leave it super hot and let it steam up in there till u sweat alot... the drink more water do it again.. i passed army drug screening for marijuana this way.. and the day before i smoke 2 gozilla sized blunts and reg size hydro blunt with 2 other ppl..