Love love love this product!
I have really curly hair that is quite dry from colouring it so much so I try to use this once a week/fortnight as an overnight hydrating treatment and it leaves my hair feeling so soft and it smells lovely.
It is a little pricey ($65 from Synergy Hair) but a little goes a long way so the product lasts for quite a long time - had it for nearly six months now!
Since I started getting highlights in my thick curly hair, I could also add dry and brittle to the list of annoying qualities my hair had. One salon I went to advised this product and I purchased it - slightly skeptical - and I haven't looked back since ! On my third tub now, with weekly or fortnightly application, it's been a life saver. I also suffer from psoriasis of the scalp and find a lot of the intensive moisture masks available on the market give me flare ups. This one hasn't so far. It really is one of those products that just works.
Tips: I usually apply it and wrap my hair up in one of those micro-fibre hair towels for a while then rinse out. It still works if you apply it at the beginning of your shower and wash out at the end, but the results don't last as long.