One material that you may not immediately think of when it comes to piercing jewelry is glass. However, glass has a lot of properties that are very beneficial for piercing jewelry. Glass is above all very smooth, there are no scratches where bacteria can settle and cause friction and irritation. Glass is also inert, so it does not react to your body and vice versa. Glass can also be sterilized. As with all materials, there are a lot of different types of glass and not all different types are equally suitable for making jewelry. Types of glass that can be used safely include:

Fuzed Quartz glass

Borosilicate glass

Soda-lime glass

Glass is often used to make plugs, but there are also glass retainers that you can wear when you have to undergo a medical examination.