Grayling's piercing jewelry line is made of ASTM F136 implant-grade titanium. ASTM F136 titanium is a highly biocompatible grade of titanium that is used in medical applications like dental implants, hip replacement, and body jewelry!
Visit this article on our website to learn more about implant-grade titanium and see our mill certificates!
https://graylingjewelry.com/pages/third-party-testing-mill-certificates-grayling-jewelry