"Hypoallergenic" is the most abused word in jewellery marketing. It means different things on different labels — sometimes genuinely allergy-safe, sometimes almost meaningless. If you have a nickel allergy or sensitive skin, here is how to read past the label and find jewellery your skin can actually live with.
What actually causes jewellery allergiesThe overwhelming majority of jewellery allergies are caused by one metal: nickel. Nickel allergy affects:
- ~10–17% of adult women in Europe and North America.
- ~3% of adult men.
- Roughly 25% of people with pierced ears develop or have nickel sensitivity at some point.
Other less common allergens:
- Copper: can cause green or dark marks on skin (harmless discolouration) and, rarely, true allergic reactions.
- Cobalt: sometimes used in alloys; low incidence of sensitivity.
- Chrome: in plated pieces.
- Lead: banned in modern fine jewellery but found in some cheap imports.
Nickel is in almost every base-metal alloy and in many precious metal alloys:
- Costume jewellery — very high nickel content.
- Sterling silver — usually nickel-free (92.5% silver + 7.5% copper), but some "sterling alloys" include nickel. Check the hallmark.
- White gold — frequently contains nickel. Palladium white gold is an alternative.
- Yellow gold — typically nickel-free, but check individual pieces.
- Stainless steel — contains nickel, but medical-grade grades (316L, 316LVM) release very little.
- Plated gold — the base metal is often nickel-containing alloy; reactions occur when plating wears thin.
If you have severe metal allergies, stick to:
- Pure 18k gold (yellow or rose): the 75% gold content with nickel-free alloys (silver, copper, palladium) is safe for almost everyone.
- 24k pure gold: extremely soft — fine for chains and pendants; not suitable for rings or bracelets.
- Platinum (950 or 900 purity): naturally hypoallergenic; the safest high-purity metal for daily wear.
- Implant-grade titanium: used in orthopaedic and dental implants; essentially inert. Best for piercings and rings.
- Niobium: rarer but completely inert; used in medical implants.
- Palladium (950 purity): a platinum-group metal that is naturally white and hypoallergenic.
- Argentium silver (93.5%): sterling silver alloy with germanium instead of some copper; less tarnish and typically nickel-free.
- Sterling silver (92.5%): safe for most — but check the specific alloy, as some include nickel.
- 14k gold: the lower 58.3% gold content means more alloy — which can include nickel. Specify nickel-free.
- Medical-grade stainless steel (316L, 316LVM): low nickel release; safe for most nickel-sensitive people but not severe allergies.
- 9k gold: only 37.5% gold, so alloy dominates; more likely to contain problem metals. Avoid if you have sensitivity.
- Costume jewellery: almost certainly contains nickel.
- Plated pieces of any kind: fine while plating is intact; reactions begin as plating wears.
- Vintage white gold (pre-2000): many contained significant nickel; test if you are sensitive.
- Cheap stainless steel from unverified sources.
- "Hypoallergenic" claims without specific metal disclosure.
A nickel test kit (available at pharmacies for around £10 / $15) uses a chemical indicator that changes colour in the presence of nickel release. It's useful for:
- Testing vintage or inherited pieces before wearing.
- Verifying "nickel-free" claims on new pieces.
- Checking the back of plated pieces where wear may expose the base metal.
- Ask specifically: "Is this piece nickel-free?" Not "hypoallergenic" — the precise word matters.
- Prefer 18k gold or higher for fine pieces.
- For affordable options: surgical-grade titanium (grade 23 / implant grade) or niobium for earrings and rings.
- Buy from reputable retailers who can document their alloy compositions.
- Request a hallmark — UK, EU, and fine US retailers always hallmark precious metals; absence is a warning sign.
- Clear nail polish applied to the inside of rings creates a temporary barrier (1–2 weeks per application).
- Re-plating with rhodium seals white gold and covers most allergenic metals underneath.
- Remounting the stone in a new nickel-free setting — most valuable pieces can be remade for a few hundred dollars.
- Short-term wear only — taking the piece off after 2–3 hours reduces cumulative exposure.
Piercings require extra attention because the metal sits in an open wound during healing:
- Implant-grade titanium (ASTM F136 / grade 23) is the standard for all fresh piercings.
- Niobium is the second safest choice.
- 14k/18k nickel-free gold is also acceptable for healed piercings.
- Avoid stainless steel, plated materials and "surgical steel" (a vague marketing term) for fresh piercings.
Is "hypoallergenic" a legal term?
No — not in most jurisdictions. It has no regulatory definition for jewellery. Only the specific metal content matters; always ask for it in writing.
Can I develop a nickel allergy later in life?
Yes. Nickel sensitivity often develops with repeated exposure over years. Pierced ears, prolonged watch wear, or daily wear of a single nickel-containing piece can all trigger later-life sensitivity.
Will my allergy get worse?
Allergies often intensify with continued exposure. If you have a known allergy, switching all your jewellery to nickel-free is the most reliable long-term strategy.
For metal choice, see our yellow vs white gold, or rose gold care.
