1. Look for a blow dryer with a ceramic heating elementLower end blow dryers may use a plastic or metal heating element that reach their maximum heat rapidly, scalding the hair and causing possible heat damage. Ceramic is a much better heat conductor and penetrates the hair shaft without compromising the health of your hair. Lower end blow dryers that burn the hair shaft could also cause permanent frizz and could slightly change the texture of your hair.
2. Go for an ionic hair dryer for more bodyIonic hair dryers are great for locking in moisture and eliminating frizz. Ionic blow dryers distribute negatively charged ions into the hair shaft and keep the cuticle flat, therefore preventing frizz and adding body to the hair. Ionic dryers also cut down on drying times and eliminate static electricity.
3. Choose a Tourmaline dryer to add sheen to the hairTourmaline hair dryers also cut down on drying times by almost 70 percent. Tourmaline dryers also add shine and sheen to the hair, and generate a tremendous amount of negative ions. This cuts down on drying time and how long you expose your hair to heat.
4. Choose a blow dryer that has low EMF'sOlder blow dryers emitted large quantities of electromagnetic fields. Modern blow dryers tend to use lesser quantities but it doesn't hurt to go for the blow dryers that are labeled as "low EMFs." Prolonged use of electromagnetic fields could cause permanent damage to your hair and could be harmful.
5. Look for various heat settings and a blast of cool air buttonIt is not recommended that you use high heat settings on your natural hair, lower wattage dryers are preferred in order to prevent heat damage. Always use a cooler setting and if you must use higher temperatures, be sure to utilize the cool air blast button every few seconds in between. Choosing a dryer that has various heat settings allows you to always be in control for the temperature of heat you expose to your hair.
My heat protector of choice:
Fantasia IC Hair Polisher Heat Protector Straightening Serum