I have dark wavy hair (coloured as I went grey very early!) and it is a mess. Frizzy, dull & dry. I try to use minimal shampoo about twice a week and have switched to Aussie and also am using a frizz-fighting conditioner and treatment mask from Aussie. This seems to have made it worse. I don't blow dry, but will use a curling iron or straighten every couple of days - leaving it natural is not an option. Please tell me what to buy, make or do to make it nice, shiny and less horrid looking!