Love Cassie uses stainless steel, metals, and Swarovski crystals to create our jewelry. Like most costume jewelry, if worn with a lot of other bangles, if worn in area with a lot of exposure to lotions or fragrances that contain alcohol (perfumes), they may turn or tarnish! My suggestion is to keep them dry as much as possible and take care of it as you would any other jewelry ♥️ We do stand behind our products, However we are NOT responsible for tarnished jewelry after you have purchased and worn it. Thank you for continued support and as always SHOP LOVE CASSIE