Has gold and other jewellry ever left greenish or black marks on your skin? It's happened to most of us at least once or twice, and even though some people are allergic to certain materials, most staining isn't caused by an allergy--it's a reaction between our skin and the metals used in jewellry, especially when the jewelry touches areas that perspire.
Copper Jewellry
Copper reacts to turns skin green. The piece you're wearing might not be pure copper, but it might have enough copper in it to cause a reaction, and some people seem to have body chemistry that's prone to staining.
Sterling Silver
Sterling silver is 7.5 percent copper, but the most common stains from sterling silver jewellry are black, and occur when the metal tarnishes (darkens due to a reaction with gases in the air). Some sterling pieces are coated with products that help keep them from tarnishing, but the coatings will wear off in time.
Gold shouldn't cause staining, should it?
Gold itself hardly ever stains your skin, it's the other metals that gold is mixed with that do. Copper, nickel and silver can be used to alter the color of gold, and make it stronger and more affordable. Any of those metals can cause discoloration on your skin.
The lower the "K" number on your gold (Karat), the less pure gold it contains--and the more other metals. Some people never have a reaction to the metals in even 10K gold, but others must buy 18K pieces to stop the discoloration.
More About Gold
Nickel Allergies
If you are allergic to nickel, you won't just have stained skin. Jewellry that contains the metal will make your skin itchy and red where it comes in contact with your body.
Gold Plated & Gold Filled Jewellry
The thin layer of gold in gold plated jewellry can wear off, exposing an inexpensive base metal that can stain your skin
Gold filled jewellry is made with a thicker outer layer of gold, so it doesn't wear off as quickly.
Ways to Eliminate Staining
* Switch to 18 Karat gold, a more pure metal.
* Platinum is expensive, but rarely reacts with our skin.
* Ask your jeweller if the piece can be coated with a new layer of metal or a clear protective film along edges that touch your skin.
* Coat the jewellry with clear nail polish where it touches your skin.
* Choose stainless steel jewellry when possible, especially when buying body jewellry components.
* Titanium is another metal choice, for its non-staining qualities and for people with metal allergies.
* Watch for jewellry labeled hypo-allergenic. It's formulated for people with heightened sensitivities to metals.
* Keep your skin dry when wearing jewellry.
* Wear offending pieces for only a short time.
* Keep your jewellry clean and tarnish-free.
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