I have dandruff and psoriasis, a couple drops of this and tea tree eo mixed in jojoba and Jamaican black castor oil has done wonders for my scalp. I can now go a week without washing my hair, before I had to wash my hair almost every day (I also use her shampoo bars). I learned my scalp doesn't like the popular peppermint oil so this is a great alternative that helps with hair growth and scalp problems. It's a win-win situation for me!.
Side note: I noticed when I stopped using this brand of essential oils and started using the cheaper store bought brands, they didn't work. You need good quality essential oils that aren't adulterated. These are the real deal!!