Do you usually perm bangs when perming? Why do you think that some people's bangs are bent inward or burned out? Or does the general barber shop not give bangs?
It's generally not hot. The curved ones can be blown inward with a hair dryer or rolled with a curling iron ... and if you want such bangs, you can ask the barber to cut the inner layer shorter than the outer layer when blowing bangs. Blow naturally when blowing, and generally bend slightly inward when blowing ~