Care Instructions: Avoid Wearing During Exercise As Sweat May React With The Jewellery To Produce Silver Chloride And Copper Sulphide Causing Deterioration And Corrosion Over Time. While Wearing The Pearl Jewellery Avoid Exposure To Sunlight And Contact With Highly Volatile Substances Such As Perfume And Hairspray As These May Cause Fading And Loss Of Lustre.