The ancient Romans would boil down grape juice in lead pots and use the resulting syrup to sweeten wine and preserve fruit. We all know how it went down for the Romans, but lead acetate is still in use today. Have you noticed some lipsticks taste sweet on your lips even though, when you read the ingredient list, they contain no sugar or other sweeteners... well... except the lead acetate. Lead acetate is found in red lipsticks more than other colors. The chemical helps with colorfastness, which is why it's also using in dyeing, including progressive hair color, like Grecian Formula™ for men. You can have a head of youthfully dark hair, all the better to attract that lovely lady with the ruby red lips and the sweet, sweet kiss.
Crystal Photo Gallery | What Makes Lead Poisonous?
Photo: Crystals of lead (II) acetate or sugar of lead, prepared by mixing lead carbonate with aqueous acetic acid and allowing the solution to evaporate. (Dormroomchemist, wikipedia.com)