Let’s start with the facts: there is no regulation, standardization or clear definition for what “clean beauty” actually means. Words like “green,” “natural,” “organic,” and even “non-toxic” can be used at the discretion of a company. And while the clean beauty movement is gaining traction, and brands are becoming more transparent about their ingredients, how can we tell the difference between marketing buzz and science?  And are there some ingredients on the no-no list that make for a better product?