If your hair is extremely dry, you might want to do a deep conditioning treatment prior to straightening it. Shampoos and conditioners with natural ingredients are easier on your hair. Consider using products that are sulfate and silicone-free to keep your hair healthy and damage-free, especially if you plan to straighten it often.
If your hair dryer came with a nozzle attachment, use it. The attachment protects your hair from direct heat and helps the final result look shinier.
Apply the hairspray at least 12 in (30 cm) away from your hair, so it goes on evenly. Do not apply hairspray if your hair is naturally quite dry, as hairspray doesn’t provide any moisture.