TARNISHING

⌲14K Yellow(or Rose) Gold Filled: No. The 14K thick layer protects against tarnishing. They are perfect material for you as well if you are looking for hypoallergenic jewelry.

⌲Sterling Silver: They will be tarnish. Don't you want the jewelry tarnished? You should wear them frequently. That helps not being tarnished.

⌲Do I get "Green Finger"? -No. The metal I use (Sterling Silver, 14K gold filled) won't turn your skin green. Copper and nickel jewelry could be happened because of a chemical reaction between acids in your skin.

⌲Can I wash my hands & use sanitizer? -Of course! You can wash your hand with rings. They won't be tarnished. However please avoid chemicals like sulfur which is compounded in hot springs or chlorine pools.