Unless you request otherwise, my jewelry findings are hypoallergenic surgical steel, titanium or 14kt gold which is great for sensitive ears and very resistant to tarnishing. The foods themselves are made from polymer clay, which turns into a plastic after baking, so the pieces are water resistant, and I have worn my jewelry in the shower without causing harm. Please remove jewelry when swimming in a chlorinated pool as the chemicals may cause discoloration. Avoid leaving the pieces in direct sunlight for prolonged periods of time as this can cause fading, and if you choose to use a commercial metal polish on the findings, dip only the metal portions into the cleaner, as it can damage the finish of the polymer clay. To prolong the scent, store in the plastic bag that came with the jewelry.