I had titanium jaw joints and all titanium implants put in due to an accindent. Im sure im allergic to it all. It really dont bother me unless i put more titanium in my sytem causing an overload. I had to change my moisturizer, makeup, toothpaste, food, deoderant, my favorite ice cream. Its literally everywhere. I bought a new lipgloss, the ulta brand. Couldnt figure out why my lips were tingling and felt swollen. I looked on it for the ingrediants, not listed. I looked it up online where you can purchase it, there it was titanium dioxide.