Body Shop Brazil Nut Hair Mask: what do you think of this product?

I've got very dry and brittle hair due to constant heat styling. I'm thinking of treating my hair with some hair masks but I am unsure as to which hair mask will work best for my hair. There are various hair conditioning treatments on the market but I am particulary interested in the Body Shop Brazil Nut Moisture Mask. I would like to hear some reviews on this product so I can decide whether to buy it or not?

Thank you for your help