While energetically cleansing the necklace chain or pendant is unnecessary, you may still want to give it a cleaning from time to time to keep it looking good. All you need is a little warm water and mild detergent to keep the pendant clean and shiny. The stainless steel pendant is water-resistant so you can clean it, but if you plan to take a shower or go for a swim, it's best that you remove it first. The chemicals in body care products or swimming pool water could damage the shine of the pendant over time.