Make sure you are using a really good heat protector on it and you could use it as often as you like! Its worth going into a salon and asking them for a product rather than trying to pick up something cheap at the supermarket, it will last for ages and you will have peace of mind you are looking after your hair.

I have super thick wavy hair so need a GHD too, the old ones i was using was taking me over an hour to go over my whole head! Yikes. The other advantage is that it gets hotter, and the plates are made of something that is supposed to protect your hair a bit more.