Scent is a powerful thing. It has the power to evoke memories, soothe you when you're sick, or even make you hungry. For many of us, it is a deciding factor in some of our purchases, from candles, food, even body lotions. It's common knowledge that people with sensitive skin need to avoid fragrance. However, more and more research is showing why fragrance can be an irritating chemical that many should avoid. If you're wondering if avoiding fragrance in your beauty routine is really worth it, then read on. Perfume or fragrance can have as many as 200 ingredients. Since these blends are considered...