im reading through these posts laughing and most. ITS FUCKIN FUNNY THAT SO MANY PEOPLE ARE SAYING THAT THEY ARE FAKE. THEY ARE NOT FAKE. THESE ARE NOT MEXICAN SCHERING PRIMOTEST( SOME ARE SAYING THAT THE AMP USED TO BE BROWN, IT STILL IS BROWN, THESE ARE TOTALLY DIFFERENT. These are made in egypt by cid co. i have used them several times, they are just as good as any other primotest. now just use them. THE PEOPLE THAT ARE SAYING THAT THEY ARE FAKE ARE THE ONES THAT HAVENT USED THEM, OR DONT KNOW HOW TO EAT OR TRAIN PROPERLY.