I am going to do my level best to keep this G rated. I have odd allergic reactions to odd things (toothpaste, the opthamologist's eye drops, etc.) with that in mind, my husband is wanting to purchse some, how do I say this? "Marital Aids". Does that make sense? Anyway, I am concerned about being allergic to the material they are made from. Has anyone else had this issue? What materials have you found work for you? I hope I didn't offend anyone, I just don't really know who else to ask such an odd question.