Now that we've covered the many technological options, we can go through which one is ideal for your hair. Hair that is thick or hair that is frizzy: an ionic hair dryer It takes thick hair a long time to dry, whether you let it air dry or use a hair dryer, so you know the fight! Use an ionic hair dryer to speed up the drying process and save time. Ionic hair dryers are able to dry hair by emitting negative ions (which dries the positively charged water ions). Drying thick, curly hair quickly like this helps keep it from becoming frizzy.....