If you're buying brand new bottles, you can rest assured that they're safe. (webmd.com)
Press Release ZOYA EARTH DAY EXCHANGE Clean up your act by trading in your old nail polish (any brand, used or unused) for brand new bottles of ZOYA! (modelcitypolish.com)
Liquid glass is then divided into globs which can be blown or pressed into brand new bottles and jars and because glass is such a great material, it can recycled indefinitely. (recyclenow.com)