Costume jewelry is affordable and comes in many styles, but it can tarnish over time. Clean it easily by following these steps:

1. Mix warm water and dish soap.
2. Soak jewelry for 30 seconds.
3. Use a soft toothbrush for detailed areas.
4. Rinse with hot water.
5. Dry with a soft towel.

While polymer clay and resin jewelry should be kept away from moisture, the 30-second cleaning above will not harm your jewelry.