Even in other hair dyer, hair styling, etc commercials they almost always have women using their products. Men use hair dryers, one doesn't need a vagina to turn a hair dryer on, so how come only women then are used for products like this. In my opinion they use the thin pretty model to sexualize something that in no way has anything to do with sex. If one thinks of hair dryers and then of sex, I think there's a problem there.
Sex shouldn't have anyting to do with a product that has absolutely nothign to do with sex. This thin pretty model may use hair dyers, but a short fat man might as well, why don't they have him blow drying his hair in this purple bathroom.
Using women as sex objects is nothing new, and this a sad but true fact. Using women as these sex objects to sell products most people don't necessarily need must send a horrible message to young kids. It tells girl they must be pretty, thin and have long luxurious hair and tells boys that this what they should like.
This idea is of course wrong, but the fact that it is wrong does not stop companies from using woman as sex objects to sell hairspray and blow dryers.