No. It’s very easy to assume that a hair dryer causes hair loss because of the extreme heat. The reality, however, is that as long as you’re not burning your skin or irritating your scalp with your hair dryer, it won’t cause hair loss. While using your hair dryer on its low or medium settings can help minimize the amount of heat directed at your scalp, even using it on a higher setting shouldn’t cause a problem as long as the nozzle doesn’t get too close to your hair and scalp. That being said, heat from the blow-dryer can have an adverse effect on your hair. Frequent usage can cause your hair to lose moisture and shine which can make it dull, dry and brittle.