I will preface this by saying that I like to pretend I'm a purist, but when push comes to shove, I'm a realist. I would love to stick dogmatically to principles about parabens and pthalates and fragrances and carcinogens... but, to put it bluntly, I also have a side gig called a real life. I'm super open-minded to trying all kinds of natural methods of doing stuff (I can give you a rundown on all my failed efforts sometime), but I'm going to shoot you straight: if it doesn't live up to my standards for actually doing its job well, I don't use it. And sometimes natural products just don't work very well.
(I also get this through Azure Standard, but Amazon and Vitacost both carry it as well.)