Please avoid contact with water, lotions, body oil,make-up, hair spray, perfume and other chemicals including household cleaners. Please take off your jewelry before exercise, shower, and sleep. For light cleaning, gently polish with a dry, soft, and lint-free cloth to avoid scratching. Please store it in an air tight container such as plastic jewelry bag or zip lock. Please make sure not to use chemical jewelry cleaners as these will do more harm than good.