Yes, since our extensions are 100% human hair, you can straighten, curl, or blow-dry them just like your natural hair. You can also use a curler to curl them. Hence, if you wish to wear extensions regularly, but only at office / college etc or some functions, get togethers, then clip on extensions should be your choice.
If you wish to wear them every time at home and outside, then you need to go for permanent hair extensions.