Guides
Jewelry
What material to wear in a healing piercing, how threading affects healing, and how to get gauge, length and diameter right the first time.
The jewelry sits in a healing piercing for months, so three things matter before anything decorative: what it is made of, how it is assembled, and whether it fits. The Association of Professional Piercers (APP) sets minimum standards for all three.
The three questions
1. What is the material? Ask for the standard, not the adjective. “ASTM F136 titanium” is a specification. “Surgical steel” on its own does not say which standard it meets, and the APP names ASTM F-138 or ISO 5832-1 for steel. See materials.
2. How does it assemble? The APP says internally threaded jewelry keeps the part through your skin smooth, threadless has no screw threads at all and is an acceptable alternative, and externally threaded jewelry has a rough screw pattern that may be passed through the tissue. See threading.
3. Does it fit? The APP says jewelry must be of appropriate length or diameter for your anatomy and the placement, and of appropriate gauge, because the body may treat jewelry that is too thin like a splinter. It also says many piercings need a downsize before they are healed, done by a piercer. See gauge and sizes and downsizing.
What to avoid in a healing piercing
- Gold-plated, gold-filled and gold overlay or vermeil jewelry. The APP says these are not acceptable for fresh piercings.
- Jewelry with a porous or uneven surface. The APP says new cells grow into the irregularities, and that metal jewelry should be polished to a smooth, mirror finish.
- Steel or “mystery metals” with no standard. Ask which standard, per the APP list.
- Externally threaded posts, for the reason above.
- Hoops in some new piercings. The APP says rings suit some areas and bars others, and Healthline says to skip hoops for a new conch. See each piercing’s jewelry guide.
- Anything that does not fit. See the third question.
Two points we have not found in the APP’s pages, so treat them as our caution rather than its rule: heavy or dangling jewelry on a healing piercing, and acrylic or plastic. The APP says its minimum standard for new piercings includes being able to withstand autoclave sterilization, and its healed-piercing page says plastic, including silicone, can be worn in a healed piercing but is fragile and may not be safe for sports or sleep.
After healing
The APP says a piercing is healed when it is not tender, the minimum initial healing time has passed and it is no longer secreting and getting crusty. After that you can use a wider range of jewelry, and the APP says to quickly replace any that causes irritation, itching, swelling or redness. Healthline says titanium and niobium contain no nickel, which makes them the best options with a nickel allergy.
Guides for individual placements are listed below.
Start with these
- Flat back earrings — what studios use instead of butterfly backs, and the post lengths by placement.
- Nose ring sizes — gauge, post length and hoop diameter for nostrils and septums.
- Nose piercing jewelry — studs, hoops, nose bones and screws compared, and what to wear at each stage of healing.
- Septum piercing jewelry — circular barbells, clickers and retainers, and what to wear while it heals.
- Eyebrow piercing jewelry — why the barbell is curved, the sizes, and when a ring is safe.
- Nipple piercing jewelry — barbell first, how the length is chosen, and what suits bras and exercise.
- Conch piercing jewelry — why the conch hoop has to wait, and how it is sized.
- Cartilage earrings — what the sources say goes in a new helix, tragus, daith or rook, and what you can wear once it has healed.
- Belly button rings — the curved barbell to start, the bar length the sources disagree on, and styles for later.
- Lip piercing jewelry — labret studs, rings and post length, with the dental research.
- Tongue piercing jewelry — barbell length, the end under the tongue, materials and what dentists say.
- Nickel allergy and piercings — the signs, and why surgical steel is not the answer.
- Piercing retainers — hiding a piercing at work or in hospital without losing it.
- Ear stretching — the 10% rule, how long to wait between sizes, and whether a stretched lobe shrinks back.
- Ring and hoop styles — captive bead rings, seamless rings, clickers and circular barbells, and which one suits which healed placement.
Jewelry guides
Belly button rings: what to wear in a new piercing, styles, sizes and materials
Belly button rings compared: the curved barbell sources name for a new piercing, the bar length they disagree on, gauge, materials and styles for once it is healed.
Cartilage earrings: studs, hoops and barbells for a new or healed piercing
Cartilage earrings for helix, tragus, daith, rook and conch: what the sources say goes in first, hoops, materials, gauge, and how to tell a piercing is healed.
Conch piercing jewelry: studs, hoops, and when a conch hoop is actually possible
What the sources say a conch piercing starts with, why Healthline says to skip hoops at first, inner versus outer conch, materials and what the APP says to check.
Ear stretching: how to do it safely, and how not to
The 10% rule, how long to wait between sizes, tapers vs insertion pins, why dead stretching causes blowouts, and whether a stretched lobe will ever shrink back.
Eyebrow piercing jewelry: which style, size and material to wear, and when
What jewelry to wear in an eyebrow piercing: a 16g titanium curved barbell, 8-12 mm, when a ring is safe, materials to avoid, and how to tell if it fits.
Flat back earrings: what they are, the right size, and why piercers use them
What a flat back earring is, why studios use them instead of butterfly backs, post lengths and gauges by placement, how to change one, and what to avoid.
Lip piercing jewelry: labret studs, rings, post length and what to check for your teeth
Lip piercing jewelry: the labret stud, what the sources say about rings and curved barbells, why the post gets shortened, materials, and the dental research.
Nickel allergy and piercings: the signs, the safe metals, and what "hypoallergenic" hides
How a nickel reaction differs from irritation and infection, why surgical steel is not nickel-free, which metals are, and what to do if you are already reacting.
Nipple piercing jewelry: barbells, rings and what to wear when
Nipple piercing jewelry explained: why a titanium 14g barbell comes first, how length is chosen, when rings are safe, and what to avoid with bras and exercise.
Nose piercing jewelry: studs, hoops and every style compared, and what to wear when
Nose piercing jewelry compared: flat-back studs, nose bones, L-shapes, screws, hoops and clickers, what to wear while healing, and how to choose a safe one.
Nose ring sizes: gauge, post length and hoop diameter explained
The three measurements that decide whether a nose ring fits, standard sizes for nostril and septum, how to measure what you have, and why S/M/L is a warning sign.
Piercing gauge and size chart
Gauge to millimetre conversions, the standard gauge for every common piercing, and how to measure post length, ring diameter and ball size.
Piercing jewelry materials: what is safe and what is not
Implant-grade titanium, gold, steel, niobium and glass compared, what ASTM F136 actually means, and why gold plated and surgical steel are traps.
Piercing retainers: how to hide a piercing at work, school or hospital
What retainers are made of, which piercings hide well and which do not, what hospitals and employers actually accept, and why a retainer beats an empty hole.
Ring and hoop styles: captive bead, seamless, clicker and circular barbell
How each ring style opens, which tools they need, why a captive bead ring is not for healing piercings, and which style suits which placement.
Septum piercing jewelry: horseshoes, clickers, rings and retainers, and what to wear when
Septum jewelry compared: circular barbells, clickers, seamless rings and retainers, standard sizes (16g, 8-10 mm), and what to wear while it heals.
Threadless vs internally and externally threaded jewelry
The three ways piercing jewelry is assembled, why externally threaded posts damage healing piercings, and how to fit and remove threadless ends.
Tongue piercing jewelry: barbell length, ball size, materials and what dentists say
Tongue piercing jewelry: why the first barbell is long then shortened, the end under the tongue, materials, and what the APP, ADA and dental studies say.
Frequently asked questions
What jewelry should I get pierced with?
Implant-grade titanium, specified as ASTM F136 or F67, or solid 14k or higher nickel-free gold. Threadless or internally threaded, so the post passing through the piercing is smooth.
Why does jewelry quality matter so much?
It sits in a healing piercing for months. The APP does not accept gold-plated jewelry for fresh piercings, Healthline says plated gold can flake and expose you to nickel, and the APP says externally threaded posts have a rough screw pattern that may be passed through the tissue.
Can I buy piercing jewelry online?
Yes, from sellers who name the actual standard and can produce mill certificates. Be wary of very cheap multipacks and anything described only as surgical grade or titanium-look.
Sources
- Association of Professional Piercers - Jewelry for initial piercingshttps://safepiercing.org/jewelry-for-initial-piercings/
- Association of Professional Piercers - Body Jewelry Verification Programhttps://safepiercing.org/body-jewelry-verification-program-2/
- Association of Professional Piercers - Mill certificate criteriahttps://safepiercing.org/mill-certificate-criteria/
- Association of Professional Piercers - Jewelry for healed piercingshttps://safepiercing.org/jewelry-for-healed-piercings/
- Healthline - Getting ears pierced: placement, pain, process and morehttps://www.healthline.com/health/body-modification/getting-ears-pierced
- Healthline - Conch piercing: pain, procedure, aftercare and morehttps://www.healthline.com/health/how-much-does-it-hurt-to-get-your-conch-pierced