Nail polish is a luxury that some women can't live without. While some choose to glam it up in today's world, it's a kind of tribal decoration that undoubtedly once carried a lot more significance than we give it credit for. However those natural dyes and resins our ancestors once used to color themselves with have been replaced by harsh chemicals. Think your nail polish is safe and just a harmless indulgence? Guess again. Check out some of these ingredients that could be in your favorite nail polish.