Is blow drying hair bad? Blow drying is a styling technique that uses hot air to dry and shape hair. It is the most popular styling tool in the United States. However, there is some concern that blow drying can damage hair.
Hair is made up mostly of keratin, a protein. When hair is heated, the keratin proteins break down. This can cause hair to become dry, brittle, and more susceptible to breakage. Additionally, blow drying can strip hair of its natural oils, which can make it look dull and frizzy.





