found it exactly where you said it would be. The label had "Non-oxynol 9" written in big letters on it. What is non-oxynol 9, and what is K-Y jelly used for besides masturbating?
Non-oxynol 9 is a spermicidal (sperm-killing) substance usually used in conjunction with another contraceptive (such as a condom or diaphragm) to further reduce the risk of pregnancy. Therefore, if you're using a condom in intercourse as a means of birth control, it's better to use a lube with non-oxynol 9. In addition to masturbation and intercourse, personal lubes are used to aid insertion of rectal thermometers, enemas, and tampons.