To preserve the luster of your gold and sterling silver jewelry, avoid exposure to household bleach and other cleaning products, which might cause gold or sterling silver to discolor and possibly disintegrate. All RP products are made of untreated, solid 925 sterling silver, 14KY or 18KY gold so they might have the tendency to tarnish over time. Humidity and frequent handling might play a role in speeding up this process, as well as each individual's skin Ph balance. We recommend that you store your gold and sterling silver jewelry in a safe place when engaging in the below activities:   Cleaning and gardening Bathing in hot tubs or hot springs Using cosmetic products such as lotion, facial oils, fragrances and hair products Exercising at the gym or while playing contact sports