Our jewelry cleaning solution contains citric acid and sodium bicarbonate. It can quickly and safely remove stains, wash, fingerprints, deep cleaning, restore gold, silver, platinum, diamond, ruby, sapphire, topaz, amethyst, garnet, olivine and other non-porous precious, semi-precious jewelry sparks and luster, by eliminating glare, polishing, restore the vitality of opaque, opaque silver, obtain bright luster, prevent oil from forming again. Its use is simple: apply an undiluted solution to silverware with a cloth, or dip silverware into an undiluted solution and let it sit for a few seconds. Rinse silverware with clean/soapy water and dry with a clean cloth. Remove all kinds of stains, restore the original luster, and avoid oxidation and blackening of jewelry.