Verify body jewelry material certifications and biocompatibility standards. Check ASTM F136 titanium, implant-grade steel, BioFlex, and more.
"I've seen the damage cheap 'market metal' does to people’s bodies. It's what drove me to manufacturing. This checker is your first line of defense against sub-standard materials, verifying certifications against the same ASTM benchmarks we use in our Thailand facility."
Founder & Piercing Expert
Clinical History Verified
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</iframe>Not all metals are safe for long-term dermal contact. To be considered "Implant Grade," a material must meet rigorous international standards such as ASTM F136 (Titanium) or ASTM F138 (Steel).
These standards ensure that the metal is virtually "Inert"—meaning it does not leach harmful elements like nickel into your bloodstream. This checker helps you verify that your jewelry meets the clinical requirements for safe healing.
Biocompatible metals are unique because they form a stable, protective oxide layer (passivation) immediately upon contact with oxygen. This layer acts as a barrier between the metal and your body's tissue, preventing "Galvanic Corrosion." By using this tool, you can check if a material is capable of maintaining this barrier, which is essential for preventing localized inflammation and allergic reactions.
In addition to metals, medical-grade polymers like BioFlex provide an alternative for clients with extreme sensitivities or those needing MRI-compatible jewelry. These materials are "Non-Reactive" and offer superior flexibility, reducing mechanical stress on the piercing track. Our checker provides data on both metallic and polymer standards to ensure you have the most complete safety information.
"Implant-grade" is a marketing term first and a regulated one almost never, so it only means something if the paperwork backs it up. What it should mean is biocompatibility tested to ISO 10993, with the alloy meeting ASTM F136 for titanium or F138 for steel.
Two documents actually matter: the mill certificate, which gives you the heat number and exact composition of the raw material, and the ISO 10993-6 and -10 test reports run on the finished jewelry, not just the bar stock. If a supplier cannot produce both, the phrase implant-grade is just a sticker. Demand the paperwork.
Without the mill certificate, you honestly cannot tell them apart reliably by eye, which is exactly what makes this fraud easy. ASTM F136 is Ti-6Al-4V ELI, a specific alloy with controlled aluminum, vanadium, and low interstitials.
Commercial-purity titanium, the F67 grades 1 to 4, is softer and purer, but it is not the same material and is not validated for long-term implant contact. The common scams are CP titanium sold at an F136 price, or a non-ELI alloy substituted in.
The only real defense is to demand the heat number and a named mill: ATI, Carpenter Technology, and Perryman are the ones I trust, and then verify that certificate against the batch you received.
Analyze the clinical benchmarks and aerospace research that define this technical standard.
Initialize Deep Dive→Convert any piercing gauge to mm, or mm back to gauge. 20g=0.8mm · 16g=1.2mm · 14g=1.6mm · 12g=2.0mm. Full interactive chart + anatomy fit guide.
Open Professional Gauge Converter →Track piercing healing progress with a structured timeline. Monitor inflammation, crust formation, and full healing milestones for any piercing type.
Open Piercing Healing Tracker →Visualize how body jewelry fits on anatomical placements. Preview ring diameters, barbell lengths, and jewelry proportions before purchase.
Open Anatomical Jewelry Visualizer →Further reading: Learn about emerging alloys changing certification standards
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