The Brazilian Blowout is different from Japanese straightening and other Brazilian straighteners because it doesn't completely straighten the hair. The hair still has plenty of volume and body and can still be worn curly or wavy. The Brazilian just softens whatever curl or wave you have. If the hair is air dried without a blow dryer, it will still have wave or curl but no frizz. On the flip side, if you want to blow dry your hair straight, you can do that, without a brush, in a fraction of the amount of time it would have taken without the Brazilian. Also, with other methods, there is a line of demarcation, meaning that when new hair grows in, it is curly/ wavy while the rest of the hair is straight. This blowout method washes away with time and is diffused, so there is no noticeable difference between new hair and treated hair.