Silver, despite being a widely used precious metal in jewelry, is prone to oxidation and tarnish phenomena, which primarily affect its aesthetic properties.

This study analyzes the tarnish phenomenon in silver from a chemical and physical perspective, outlining the reactions involved, the factors that accelerate its formation, and various techniques currently employed for its removal.

In the second section, the focus shifts to current anti-tarnish technologies for silver and the specific tests used to evaluate their effectiveness. A case study will be presented, demonstrating the varying ability of certain investigative methods to discern the actual tarnish resistance of products within the same technology.

The goal is to provide a comprehensive overview of the current state of solutions and to emphasize the importance of advanced testing methodologies in developing increasingly effective and reliable technologies for silver protection.