Goto this link http://www.steroid.com/beat.php#teststan
Then goto Contents 3.3.2 Testosterone Supplemtents
It says, "3.3.2 Testosterone supplements: Orchic extract (found in bull's balls) will give a positive for anabolic steroid use. It is a legitimate substance that causes the test to imply that you abuse steroids."
Now I know people that take urine tests regularly while using gear and they're never had any problems. So why don't people test postive if that statement is true?