Kerastase oleo relax range is supposed to be excellent for dry frizzy hair.
I have very fine, basically "straight" hair but it is prone to firzziness and looks wiry - so it looks absolutely horrible without any product.
I have found the following work for me:
1. straightener - this is a MUST
2. Elvive range of shampoo and conditioner
3. Matthew James - Deep Moisture Treatment