Why jewelry turns skin green? The main reasons why jewelry causes skin to turn green include metal allergies, chemical reactions, and the interaction between specific metals and the skin.
Metal allergy: Some people may be allergic to certain metals, such as nickel, which can cause skin itching, redness, and swelling instead of a green or black discoloration. Metal allergies typically cause redness and swelling, rather than green or black discoloration. Therefore, if you notice that your fingers have changed from wearing jewelry to green, it does not mean you have allergies, but rather a harmless discoloration.
Chemical reaction:
Copper: Copper reacts with acidic substances in sweat to form copper sulfate, which may cause a dark green color to appear on the skin. This reaction usually occurs when jewelry containing copper comes into prolonged contact with the skin.
Silver: Silver rings may darken the skin because silver contains copper, which can stain the fingers. The black stains and appearance of silver rings are usually due to metal contamination rather than green changes.
The interaction between specific metals and skin: If jewelry contains specific metals such as copper, these metals may react with skin secretions, causing skin discoloration. For example, the phenomenon of jade rings turning greener as worn is partly due to chemical reactions between skin secretions and cosmetics on the surface of jade, resulting in a greenish color.
Overall, there are various reasons why jewelry can turn skin green, including metal allergies, chemical reactions between specific metals and the skin, and so on. In most cases, this discoloration is harmless and can be removed through simple cleaning. If there is a persistent allergic reaction to a certain type of jewelry, it is recommended to avoid wearing it or seek medical advice.