Do you know where your essential oils come from?

They have a reputation for being “pure and natural," but many essential oils are derived from fossil fuels—and there's almost no way to tell which ones.

I accidentally went into a research rabbit hole about essential oils last week. Today’s newsletter is an attempt to turn that hyperfixation into something useful.

First, let me explain why it happened. You may remember I interviewed beauty industry reporter Jessica DeFino about the connections between Big Beauty and Big Oil last month. During that interv…