This is an excellent product for problem dandruff, psoriasis etc on the scalp. I have tried numerous medicated shampoos, conditioners etc but this is the only thing that works. It relieves itching straight away. I just quickly massage a few drops into my scalp each morning (easier if you have short hair) then that's it for the day. There's an invigorating tingle as it goes on - some might call it a slight sting! - and it has a fresh smell which I don't mind, but that soon goes away anyhow.