Certifications & Material Testing

Tested. Certified. Worn with Confidence.

Body jewelry sits against living skin — sometimes for years. At OUMO, we don't ask you to take our word for it. Every piece in our Implant Grade Titanium Collection is made from ASTM F136 certified titanium, and our materials are independently lab-tested to meet U.S. heavy-metal safety standards. Two reports. Zero guesswork.

ASTM F136

Implant Grade Titanium · Ti-6Al-4V ELI

Heavy Metal Test

Lead (CPSIA) · Cadmium (≤ 100 ppm) · Independent Lab

Certification 01

ASTM F136 — Implant Grade Titanium

ASTM F136 is the U.S. standard for titanium alloys used in surgical implants inside the human body. To earn the designation, the alloy — Ti-6Al-4V ELI (Extra Low Interstitial) — must meet strict limits on composition, purity, and mechanical properties.

Our independent report verifies the titanium alloy used in our Implant Grade Titanium Collection meets the material-composition requirements of ASTM F136.

Standard ASTM F136 (UNS R56401)
Alloy Ti-6Al-4V ELI — Extra Low Interstitial
Report result Titanium composition conforms to ASTM F136
Why it matters Biocompatible · nickel-free by alloy design
Scope Implant Grade Titanium Collection

View Full Report (PDF) Shop the Collection →

A Note on Materials

Not every OUMO piece is ASTM F136 titanium. We also craft in 316L stainless steel and other carefully selected metals, each chosen for a specific role in the collection. The ASTM F136 certificate applies specifically to our Implant Grade Titanium Collection. Heavy-metal testing is how we hold every material to a consistent U.S. safety standard — so whichever piece you choose, you know exactly what's going on your body.

Frequently Asked Questions

What does 'implant grade' actually mean?

'Implant grade' is shorthand for a material that meets an ASTM standard for use inside the human body — most commonly ASTM F136 for titanium or ASTM F138 for stainless steel. It's not a marketing term you can self-certify; the raw alloy has to be tested against defined limits on composition and purity. For body jewelry, it's the most conservative material choice available, especially for healing or long-term piercings.

Are all OUMO pieces ASTM F136 titanium?

No. Our ASTM F136 certification covers our Implant Grade Titanium Collection. We also offer 316L stainless steel and other materials across the catalog. Every piece, regardless of material, is made from metals that have cleared our heavy-metal testing — but if you specifically want implant grade titanium, shop from the certified collection.

Is this jewelry safe for sensitive skin and nickel allergies?

ASTM F136 titanium is widely recommended for people with metal sensitivities because the alloy's nickel content is very low and tightly bound, so very little (if any) is released during wear. If you have a diagnosed nickel allergy, the Implant Grade Titanium Collection is the safest place to start. For medical questions, we always recommend speaking with your dermatologist or piercer.

Can I wear these during a new piercing?

ASTM F136 implant grade titanium is one of the materials most commonly recommended by professional piercers for fresh piercings because of its biocompatibility. Every piercing is unique though — always follow the aftercare guidance of the piercer who performed your procedure.

Where do the reports come from?

All reports are conducted by internationally recognized, accredited laboratories including SGS.

These are independent tests — not created or influenced by OUMO. Full reports are available above.

How often are materials re-tested?

We re-test when we bring on a new supplier, introduce a new material, or meaningfully change a production process. Certificates are versioned and dated on the PDFs so you can always see when a report was issued.

Built for the Body

Jewelry you can heal in, sleep in, live in.

Shop the pieces backed by our ASTM F136 certification — designed in the U.S., made for the bodies that wear them.

Shop Implant Grade Titanium →