Ever wondered why your skin is breaking out or why you have a cold sore? It could be your makeup! Dirty products (not just brushes) can cause a whole heap of skin problems and disease such as blemishes, conjunctivitis, and even cold sores! "When you think about it, you wouldn't use the same fork all week without washing it, would you? The same thing goes with your makeup," says founder of Beauty So Clean, Nancy Crossley. Nancy began Beauty So Clean after years of working as a makeup artist and noticing that there were no quick, easy ways to sanitize beauty products and brushes while on the job.