To Prevent Infection: Clean both of your ears and all earrings with alcohol Before and After wearing them. DO NOT put Hydrogen Peroxide (or any Bleach) on any Silver jewelry....Our 925 Sterling Silver Products is Finishing With Silver Plated (AND / OR) E-coat...Silver Plating is an extra 100% Silver layer that we apply on top of the solid silver base in order to give it long-term shininess and an extra protection against scratches and daily usage.....E-coating, also known as electro-coating or electro deposition, is a method that uses electrical current to coat a metal surface with an organic lacquer, covering every nook and cranny on the jewelry with an even and consistent protective coat. This coat protects the sterling silver used to create the jewelry and lets the natural beauty of the sterling silver come through without fear of damage. Basically, it is an ultra-fine transparent layer of plastic that protects the Silver and it's plating, therefore considerably increase the lifetime and the shininess of your jewelry.