Katzco Gem & Jewelry Cleaner, Non-Toxic for Gold, Platinum, Diamond, Ruby, Sapphire, & All Other Jewelry KATZCO Concentrated GEM & Jewelry Cleaner Solution mixes with water Can be used with all types of Ultrasonic cleaning machines Pleasant odor Non-Toxic Made in the USA " IT CLEANS all your fine jewelry, watches, eyeglasses, contacts, lenses, filters, CD's, DVD's, dentures, shaver heads, retainers, ornaments or any delicate household items with this Professional Gem & Jewelry Ultrasonic Cleaner. , restoring it to a mirror-like finish. NON-TOXIC Katzco Gem & Jewelry Cleaner is a concentrated liquid that mixes with water to clean jewelry in all types of ultrasonic or other jewelry cleaning machines, and is specially formulated for the cleaning & care of all types of jewelry & gems CAN BE USED with all types of Ultrasonic cleaning machines IT LEAVES No Harsh Chemical Odor and it is 100% Non-Toxic and BEST OF ALL , it's Made in the USA.