When in doubt pack it in your checked luggage. On our flight home last month, I sat next to a lady who had some extremely expensive makeup confiscated at the gate. Needless to say she was very upset about it. She complained to the flight attendant who came back right before departure and told her that the guards claimed that there was alchohol in it and it was flammable. Sounded very weird and strange to me. Flamable makeup? Anyway, she told me it was some expensive facial creme. Sounds to me that the guards may have wanted it, but you never know.