A bit off topic, but I don't get why people seem to be repeating the "all natural" thing again and again (in this case, the oils and stuff). People, let me remind you something: The fact that something is "natural" doesn't mean anything. Do not assume that natural is equal to good, healthy, safe or side's-free, that's pseudo-scientific babble. You can find synthetic things that are both healthy and unhealthy, and the same thing can be said about "natural" stuff. Sorry to tell you that, guys, but we must leave that appeal-to-nature fallacy behind and start thinking as grown ups. Take that into account when selecting those weird oils you are applying to the scalp. Use evidence-based approaches when selecting the products for your hair, instead of the false and non-existant natural/non-natural dichotomy.