Titanium belly button rings are perfect for any phase of healing that your piercing is in. Titanium is non-reactive since it does not contain nickel, and it is especially ideal for those with metal allergies. Titanium is fully customizable for any style of navel ring, from simple barbells and hanging barbell styles. Unlike steel, titanium body jewelry can also be anodized for an assortment of unique colors. Gemmed and themed styles are some of the most popular varieties of belly button rings, and these are available in different sizes. Titanium navel rings are an excellent addition to any body jewelry collection. Aftercare instructions.