the jewelry oxidizes when it gets wet. Like copper does when its outside.
I think it is bad for skin
Silvertone jewelry is a costume jewelry made to look like silver. It can cause skin to turn green due to the copper and nickel in the metal
Wear Silpada!!!! Usually, only fake, costume jewelry will turn green. This is because it is made from copper instead of gold and the oils form you skin cause the copper to corrode. The green corrosion can stain your fingers or any other skin the metal is held against. So, short answer, get some real jewelry...
Copper is what is in jewelry that turns skin green after lengthily wear. If the aluminum is If the aluminum is anodized it won't corrode at all.
Stop wearing costume jewelry.
scabbibummsin
That's copper oxide coming out. Some people's body chemistry makes it happen faster than others.
http://www.helium.com/items/597008-why-do-some-jewelry-metals-turn-skin-green
Jewelry can cause skin to turn green primarily due to the presence of copper in certain metal alloys, such as brass or bronze. When these metals come into contact with moisture, sweat, or certain skin products, they can oxidize and form copper salts, which may stain the skin. Additionally, some people may have skin reactions to nickel or other metals in jewelry, contributing to discoloration. To avoid this, opt for higher-quality materials, such as sterling silver or stainless steel.
If it is cheap or if you are allergic It depends on the type of jewelry. Costume jewelry is generally made from cheap metal, chemical from a persons skin, along with perspiration reacts with this metal and cause the "green" effect, much in the same way that types of water (salt usually) has the effect on copper. Metals such as Gold, (depending on the Karat), Platinum, Silver, usually
Depends on the persons skin, and if they take care of it.
Nickel in jewelry (or in coins) is not bad for you as long as you are wearing the jewelry (or spending the coins) rather than eating it. It is quite common for people to have nickel allergies, which is why it's use in jewellery is controversial. (However it is quite cheap, which is why it is frequently used). If the jewellery makes your itch, or turns the skin slighlty green where it is being worn, stop wearing it.