Sorry, 16-year-olds with chipped nail polish. The New York Post reports that CVS now requires you to be 18 or older if you want to purchase acetone based nail polish remover. No, they're not trying to discourage underage nail art. Acetone is apparently one of the lead ingredients in meth, and CVS doesn't want to be responsible for teenagers getting their Walter White on.
This new policy also limits purchasing nail polish in conjunction with other meth ingredients, and limits how much acetone nail polish you can buy at one time. Each customer is allowed two bottles a day, which, let's be honest, is more than anyone — even the biggest nail art addict — needs.