Think about how many times you might reapply a lipstick or gloss in one day. Sure, some of it rubs off on napkins and straws—but much of it is absorbed into skin or ingested. Like other beauty products, lipsticks and glosses can contain toxic ingredients, some of which are hidden. It’s said that the average woman will consume seven pounds of lipstick over the course of a decade. If that figure is even close to true, we should know what we’re consuming! Here, 5 things you may not have known about the ingredients in your favorite tube of lipstick.