Titanium has the one of the lowest probabilities of causing an allergic reaction of all the metals. Titanium and surgical steel are usually what the jewellery is made out of in piercing shops as they are less likely to reject/get infected.However,there are varying qualities of titanium.If you want to use titanium for nose piercings, you must implant certified titanium
(Ti6Al4V ELI) that is ASTM F136 compliant or ISO 5832-3 compliant, or commercially pure titanium that is ASTM F67 compliant,that is the best option for getting pierced.
