Absolutely! With quality human hair extensions you can curl, flat iron and blow dry the extensions as often as you want. Brushing is highly encouraged at least twice a day to keep them tangle free. However, with inexpensive synthetic hair or synthetic/human hair blends (which are often sold over-the-counter in beauty supply stores,) we highly caution against using curling irons, flat irons and blow dryers set at high temperatures. At the Anastasia Molchanov Salon, only the finest human hair extensions are used, thus eliminating all worries and concerns why styling your hair.