* Silvertone is a Plating: "Silvertone" typically means the jewelry is made of a base metal (like copper, brass, or zinc) and then plated with a thin layer of silver or a silver-colored alloy.
* Base Metal Corrosion: When the plating wears away, the base metal underneath is exposed. These base metals, especially copper, can react with moisture, sweat, and skin oils. This reaction produces copper salts, which are green.
* Copper's Role: Even a tiny amount of copper in the base metal can be enough to cause the green discoloration.
* Factors Influencing Turning Green:
* Acidity of Skin: People with more acidic skin are more likely to experience this reaction.
* Sweat: Sweat contains salts that can accelerate the corrosion process.
* Environment: Humid environments also contribute to corrosion.
* Quality of Plating: A thicker and higher-quality plating will take longer to wear away, delaying the green finger effect. Cheaper silvertone jewelry often has very thin plating.
How to Prevent Green Fingers from Silvertone Jewelry:
* Apply a Barrier: Coat the inside of the ring (the part touching your skin) with clear nail polish. This creates a barrier between your skin and the metal. You'll need to reapply it periodically.
* Choose Better Quality: Opt for higher-quality silver-plated or sterling silver jewelry if possible. Sterling silver is less likely to cause the problem because it contains a much higher percentage of silver, which is less reactive.
* Avoid Harsh Chemicals: Remove your jewelry before using harsh chemicals, cleaning products, or swimming in chlorinated pools.
* Regular Cleaning: Clean your jewelry regularly to remove oils and dirt that can contribute to corrosion.
* Consider Other Materials: If you're very sensitive, consider wearing jewelry made of hypoallergenic materials like stainless steel, titanium, or platinum.
* Gold Plating (sometimes): If the silvertone jewelry is plated over another metal you are not reactive to, then that will help with the finger from turning green.
In short, while not all silvertone jewelry will turn your finger green, the possibility exists due to the base metals used beneath the plating. Taking preventative measures can help minimize or eliminate this issue.