Why Does Jewellery Turn Your Skin Green — And How to Stop It

The green ring around your finger. The green patch at your wrist where a bracelet sat. The discovery, mid-meeting, that your necklace has left a pale green line across your collarbone. If you've experienced any of these, you've met one of the most common — and most misunderstood — problems in jewellery.

The green is not harmful. But understanding why it happens, and more importantly how to prevent it, will change how you shop for jewellery.

Why Does It Happen?

The green discolouration is caused by a chemical reaction between copper in a metal alloy and your skin's chemistry — specifically, your sweat, skin oils, and any lotions or perfumes you're wearing.

Copper, when it reacts with moisture and organic compounds, forms copper salts — including copper chloride and copper carbonate. These compounds are green. When they form on the surface of a piece of jewellery in contact with your skin, they transfer as a green residue.

This is called oxidation — the same process that turns the Statue of Liberty (which is made of copper) its distinctive green colour over time.

Which Metals Cause Green Skin?

The primary culprit: Copper. And copper is present in a lot of jewellery metals:

•  Brass: Copper-zinc alloy. Very common in fashion jewellery. High oxidation rate, especially in contact with moisture.

•  Bronze: Copper-tin alloy. Similar issues.

•  'Gold-filled' or 'gold-plated' on a brass base: Once the plating wears thin, the brass underneath reacts.

•  Sterling silver (925): Contains 7.5% copper alloy. Can cause green marks in some people, especially in high-humidity conditions or after intense sweating.

•  Cheap fashion jewellery: Often contains high copper content with minimal or no protective plating.

Metals that do NOT cause green skin:

•  316L Surgical-grade stainless steel: Contains no copper. Will not cause green discolouration.

•  Titanium: Completely inert.

•  Platinum: Does not oxidise.

•  Solid gold (14K and above): Low enough copper content that it rarely causes reactions in most people.

Why Does It Affect Some People More Than Others?

Skin chemistry varies significantly between individuals. Factors that increase green staining:

•  Higher acidity in sweat (varies by diet, health, stress levels)

•  Wearing jewellery during exercise or in hot weather

•  Using hand creams, lotions or perfume while wearing jewellery

•  Living in a humid climate

You can be wearing the exact same bracelet as someone who shows no green staining — and your skin can turn green within minutes. This is entirely normal and says nothing about your skin being 'wrong'.

How to Stop It: Permanent Solutions

The only permanent solution is to choose jewellery made from metals that don't contain copper at reactive levels:

1. Switch to 316L stainless steel: The most accessible and practical solution. No copper. No green. Full stop.

2. Choose platinum or titanium: More expensive, but completely copper-free.

3. Stick to high-karat solid gold (18K+): Less copper alloy, significantly reduced reaction risk.

Temporary workarounds (not permanent fixes):

•  Nail polish on the inner surface of a piece: Creates a barrier between the metal and skin. Works until the nail polish flakes.

•  Clear jewellery sealant: Similar principle, slightly more durable.

•  Keeping jewellery dry: Reduces the moisture needed for the oxidation reaction — but doesn't eliminate it.

The Aure Answer

Every Aure piece is made from 316L surgical-grade stainless steel — zero copper content, zero green skin, guaranteed. It's why we built the brand around this material.

Shop green-free jewellery at aurejewellery.com. ✨