In modern Western body piercing jewelry, a wide variety of materials are used. Some cannot be autoclaved, and others are may induce allergic reactions, or harbour bacteria. Certain countries, such as those belonging to the EU, have legal regulations specifying which materials can be used in new piercings.

The Association of Professional Piercers has developed safety standards for body jewelry based on research and historical experience.

Products with an ISO or ASTM designation are so noted and a statement specifying the finish requirements particular to body jewelry has been added. In addition, several materials designated for applications other than implants have been proven through historical and practical application to be suitably biocompatible for initial piercing.

• Steel that is ASTM F-138 compliant or ISO 5832-1 compliant
• Steel that is ISO 10993-6, 10993-10, and/or 10993-11 compliant (EEC Nickel Directive compliant
• Titanium (Ti6Al4V ELI) that is ASTM F136 compliant or ISO 5832-3 compliant
• Titanium that is ASTM F-67 compliant
• Solid 14 karat or higher nickel-free white or yellow gold
• Solid nickel-free platinum alloy
• Niobium (Nb)
• Fused quartz glass, lead-free borosilicate or lead-free soda-lime glass
• Polymers (plastics) as follows:
• Tygon® Medical Surgical Tubing S-50HL or S-54HL
• Polytetrafluoroethylene (PTFE) that is ASTM F754-00 compliant
• Any plastic material that is ISO 10993-6, 10993-10 and/or 10993-11 compliant and/or meets the United States Pharmacopeia (USP) Class VI material classification.

All threaded or press-fit body jewelry must have internal tapping (no threads on posts).

For body piercing jewelry purposes, surfaces and ends must be smooth, free of nicks, scratches, burrs, polishing compounds and metals must have a consistent mirror finish.

Implantatium (trade name)

When the EU passed the nickel law, and 316L was no longer an alternative for new piercings, implantatium, a new alloy with less nickel, was created, with the aim of replacing the surgical steel as the leading healing jewelry.

However, implantatium never became successful, mainly due to its high prices, uneven quality and a limited choice of jewelry. Instead titanium became the leading material.

The alloy consists of less than 0.05% nickel and is therefore compatible with the EU nickel law. It is safe to use in a healing piercing but as stated above, the choice of jewelry is very limited.

Titanium

Titanium body jewelry is often manufactured in either commercially pure grades 1 to 5 or grade 23 Ti6AL4V ELI, also known as Implant Grade Titanium.

The grade considered suitable for piercing jewelry use is a disputed topic however the only Grade recommended for use by the association of professional piercers remains Grade 23 Titanium (ASTM F136).

The alloy has long been used for both piercings and medical implants, but it is difficult to see if long-term allergies and other complications could arise. Titanium, the alloy contains aluminum and vanadium.

When the EU Nickel Directive came into force - high nickel bearing alloys were restricted from use in primary (new) piercings. Because of its virtually 'Nickel Free' content Titanium has become one of the preferred materials used in piercing jewellery within the borders of the EU.

Titanium jewelry is lightweight (around 60% the weight of stainless steel straight barbells given the same volume), it is highly corrosion resistant and less likely to react with body fluids, is not magnetic, it can be anodized to create a layer of colored oxide on the surface. Common colors are yellow, blue, purple, green, and rainbow.

Titanium can be sterilized in an autoclave.

Blackline (trade name)

Blackline was introduced to the medical business in the late 1980s and revolutionized what it was possible to do with materials. It is a technique still used to treat the surface of pacemakers and other medical equipment.

Blackline jewelry is produced by adding a surface layer of black and highly durable titanium film to a titanium core.

The jewelry is resistant to wear and causes little friction to body tissue.

Allergic reactions to blackline are extremely uncommon, which is why it is often used in surgical equipment. Although the surface layer isn't classified as permanent, it is very durable and lasts longer than, for example, anodized titanium flesh tunnels and Piercing Tapers.

Blackline is suitable for piercings that are still healing, as it is lightweight, safe and durable. However if used where in contact with hard body parts, such as teeth, the surface layer can be scraped off. It can be autoclaved.

Zircon Gold / Zircontwo (trade name)

Zircontwo or Zircon Gold was developed as an alternative to gold jewelry. The method of production is similar to that of Blackline, but instead of titanium in the film, a material called zirconium nitride is used. The core of the material is most often a highgrade titanium alloy called Ti6AL4V ELI. Zircontwo, like Blackline, is used in medical equipment.

Zircontwo is better suited to a healing piercing than real gold, since it won't discolor as 18K (75%) gold often does. It is also more lightweight and has a smoother surface so it won't cause as much irritation. It is also cheaper and significantly more durable.

Zircon Gold / Zircontwo can be autoclaved. It's good for body jewelry wholesale.

Niobium

Niobium is a metal resembling titanium, but it is heavier. When using niobium in a piercing jewelry it has to be as pure as possible, the threshold value being 99.9% niobium. This is sometimes referred to as "999 Niobium". Lower purity shouldn't be used as it can lead to allergies.

Pure niobium doesn't react to body fluids, oxygen or cleaning agents. It can safely be autoclaved. It is allowed in healing piercings by the EU nickel law.

Niobium can be treated to obtain a permanently dim black surface. A Septum retainer in black niobium is practically invisible.

The selection of niobium jewelry is much smaller than that of titanium and blackline, mainly because niobium jewelry is more expensive and more difficult to produce.

Bronze

Bronze is often used in larger piercings in the form of earweights and ethnic jewelry from Indonesia and other places of the world.

Bronze is an alloy of different metals but the most common blend (in navel rings) is 90% copper and 10% tin.

When buying bronze body jewelry dangle, make sure to buy it from a serious manufacturer as some bronzes can contain arsenic which can "bleed" into your body. Bronze can also discolor the skin with a greenish color which can be removed but if it gets into open wounds it can permanently discolor the tissue.

Silver

Jewelry made out of silver, such as the 925 silver nose studs piercing, a noble metal, has been common for centuries in all forms of jewelry. It has a certain luster and can also be treated to make certain areas black which gives a nice contrast. However, silver is also one of the most common reasons for nickel allergy.

It should also never be used in new piercings or damaged piercings as blood, sweat and other body fluids as well as cleaning agents can make the silver oxidize which makes the metal black and also releases nickelsalts which can cause severe allergies and also discolor the area around the piercing, a discoloring that will last through life.

The purity of silver is measured in hundreds. The numbers stapled on silver jewelry is what indicates this. For example, 925 means 92.5% silver, and 7.5% other metals, often nickel.

Gold

Gold is a noble metal. It is a beautiful metal for use in jewelry and has an old tradition.

When using gold for piercings, a lower purity than 14 or 18 carat (58 to 75%) is not recommended. Neither should gold plated jewelry be used and even though the EU allows it, gold should never be used in healing piercings.

Gold navel rings is about as soft as lead and is easily scratched. These scratches can irritate the body, especially in new piercings. Tonguebars in gold are not recommended as chewing on the beads is common. This makes the beads full of scratches and flaws. Zircontwo is recommended instead.

For piercing, a gold alloy is used, the most common being 18k, with 24k being entirely pure. 18k gold contains 75% gold and 25% copper and silver. Traces of other metals may also be present. In lower quality gold, zinc and nickel can also be found.

As said, gold jewelry should never be used in healing piercings as body fluids tends to discolor the metal and cause it to "bleed." Allergy to gold is uncommon but it does exist, and then mostly from white gold. In some extreme cases, the copper in the jewelry can "bleed" out and cause greenish discolorings to the tissue.

18k gold can become discolored from autoclaving.

Porcelain

Porcelain is a great material for piercing, due to it being high fired stoneware. If the glaze is non-porous and leadfree it is suitable for use. A product example is the porcelain plug is the customizable DextEars by ceramic artist Dexter Mäkelä from Finland.

Glass

Glass is a common piercing material which has been used for thousands of years. For example, earplugs made of glass have been found in ancient Egyptian tombs.

If correctly shaped and manufactured, glass is an excellent material: comfortable to wear, tough, and safe for the body. However, cheaper glass beads that are not covered in a metal shell can easily break into shards. If you drop glass jewelry on the floor, you probably won't be able to use it again. Also if you have a cheap bead in a tongue piercing and accidentally chew on it, it can break into tiny shards and cause lacerations.

It is possible to sterilize glass in a steam-autoclave but the heat may cause cracking in cheaper products.

Plastics

Plastics have been used for a long time for both implants and piercings. Early piercers often used it as a healing jewelry. After the piercing was done, a product resembling a thick fishing line was inserted in the hole and its end was rivetted together. When the piercing was healed, the plastic was cut and pulled out, and then a real jewelry was inserted. The method is still in use today, but to a much smaller extent. There are many better and safer ways today.

Plastic is a light material, with an amazing resistance to the body's chemical reactions and safe against most allergies. However, many plastics have tiny pores, which makes it necessary to often take the jewelry out and thoroughly clean it from skinparts and such.

PTFE

PTFE or Teflon was invented in 1938 and is used in the medical industry as well as for frying pans.

It is biocompatible, meaning it will not cause allergies. It's a lightweight plastic, it's bendable, autoclaveable, not visible with X-Rays, not magnetic, and very stable. It's well suited for implants and piercings, specially if you want a little elasticity in the jewelry.

It's also a good material to use as retainers, when you need to take out any metal jewelry, like when in surgery or when X-rayed, so that the hole won't shrink.

Acrylic, plexiglas

Acrylic or Plexiglas or any of a variety of names, is a transparent plastic, in piercing mostly used for plugs and tapers.

Due to the material's slipperiness, it is widely used for stretching. Many overenthusiasts have damaged their holes with acrylic tapers.

Jewelry made of acrylic has a tendency to collect body fluids and skin parts in tiny pores. This calls for regular cleaning to avoid bad smell and infections. It's not a good material for damaged or new piercings and neither should it be autoclaved as it can get discolored. It is also a fragile material and can easily shard if dropped.

Plastastic (trade name)

Plastastic is a relatively new plastic. It is non-toxic, safe against the body's chemical reactions and does not cause allergies. It's available in several different colors and shapes.

The material is also widely used in the medical industry for sutures, synthetic arteries, reconstruction of tendons, replacement of cardiac valves, and boneplates and screws.

Gems

Gems or gemstones are mostly used as inlays in plugs and as beads in BCR:s.

The quality varies widely with different gems, and it can be hard to find stones big enough without cracks and scratches.

Some stones may affect the body such as malachite which contains copper that can discolor the skin. Others may contain lead or arsenic or other hazardous materials. However, stones are generally not a problem for the body as long as they don't have sharp or pointy edges or are very heavy. They can most of the time be autoclaved, but some stones, such as opals and corals can't stand the heat and should be cleaned some other way.

Natural Materials

Wood

Wood is a common material for plugs and other shapes. Wooden pieces tend to keep warm in cold conditions, they are lightweight, they often stay in place better than other plugs and also they allow the body to "breathe" so the piercing is less likely to smell as it might with other materials.

The downside of wood as body jewelry is if not cared for properly it may dry out and lose luster. This can be prevented with mineral oil or jojoba oil and avoiding excessive exposure to water.

It should not be autoclaved as that can cause cracking, warping, or splitting.

Wood has grain that will rise if not properly finished, dramatically changing the texture. The porousity of wood and inability to be safely sterilized renders it inappropriate as a material for initial piercings or unhealed stretches.

Some types of wood are strongly discouraged for piercing jewelry as they can cause allergic reactions or otherwise be irritating for the skin. Hardwood is preferable. Correctly treated, it doesn't swell, it's durable, stable, does not absorb a lot of moisture or body fluids, and the surface can be polished to be very smooth.

Wood is also an excellent basis for more advanced jewelry. The flat faces of a plug can be inlaid with gemstones or metals, etc. Wood can easily be shaped and it comes in many colors.

Amber

Amber is fossilized tree sap and has a long tradition of use in jewelry. Its most common color is a goldish yellow but it also comes in black, greenish, reddish, white, brown and blue and various blends. It can be found with natural inclusions of small animals, insects and plants which can be amazingly well-preserved.

Amber is commonly used for inlays in metal jewelry or in plugs made of horn, bone or wood etc., but there are also massive amber plugs.

The material has a smooth surface that is kind to the skin, but tends to be a little fragile and can't handle heat very well, so it shouldn't be autoclaved. During winter, it will stay warm.

Fauna

Biological Organic Materials are quite common in the world of piercings and are what were used by many cultures that pierced traditionally. They are generally considered more exotic than plastic and metal jewelry. Like wood, they are well suited as body jewelry as they are easily shaped and with bone, horn, ivory etc. you can get a nice smooth surface. Biological organic materials allow your body to "breathe" and they never get cold during winter. However, like wood, they can get dried out, which can produce cracks.

Badly cleaned materials can transfer remaining bacteria and such to the body of the jewelry-wearer, so therefore it is very important that you buy your jewelry from a serious manufacturer.

Lower quality jewelry might have scratches which can harbor bacteria, or poor finishes which can result in harsh textures.

Animal products that are not acquired legally are not suitable as a raw material for the manufacture of body jewelry. There are good alternatives for some material such as fossilized mammoth, mastodon, or walrus ivory, which is a mineralized material exported from Siberia or Alaska. Every year, large amounts of mammoth ivory are exposed in the permafrost of Siberia. The abundance of mammoth ivory, and the fact that the trade is legal, has dealt a hard blow against the illegal ivory trade. Mammoth ivory can be found in more than the normal white/yellowish colors normal ivory has. This is because minerals in the ground sometimes color the ivory. Mammoth ivory is prone to cracking due to changes in temperature and moisture levels if it is not properly cared for.

Bone, horn, ivory and such should not be autoclaved, as it will destroy them. It is also not suitable for unhealed piercings or stretching existing ones for body jewelry.